| Readability Formulae: Facts and Limitations | | | | figurative language is a non‑stylistic feature |
| Introduction | | | | that can pose challenges to the reader because |
| How easy is it to read a text? How clearly does a | | | | understanding figurative language requires more |
| text express ideas and emotions? How could the | | | | than simply understanding the literal meaning of a |
| linguistic difficulty of a text be determined and | | | | text. Readability formulae neither consider the |
| analysed? These questions have been one of the | | | | stylistic nor the non‑stylistic features when |
| major concerns of text designers, teachers and | | | | measuring the readability of a text and this in |
| writers. In actual fact, these questions are | | | | turn, affects the accuracy of the overall results.c) |
| inextricably bound up with the concept of | | | | Background Knowledge |
| readability. In an attempt to provide answers to | | | | Readability formulae would judge a text to be |
| these questions, so many studies and research | | | | easy or difficult by measuring the properties of |
| have been conducted and as a result, a large | | | | that text; they never take into account |
| number of formulae were proposed to measure | | | | characteristics of readers. These different |
| the readability of written texts. | | | | formulae have been designed for the use with |
| In the theoretical part of this paper, I will highlight | | | | native speaker children and not for second |
| some of the ways that are used to determine | | | | foreign language learners. No can deny that these |
| the linguistic difficulties of written texts. Then, I will | | | | groups differ in their background knowledge as |
| explain some of the common examples of | | | | well as in their language competence and ability to |
| readability formulae and how they work. Finally, I | | | | comprehend written texts. There is evidence |
| will shed some light on the limitations and validity | | | | suggesting that the characteristics of readers |
| of these formulae. In the practical part, I will try | | | | (which have been ignored by readability formulae) |
| to examine the readability of some texts by using | | | | have a great deal to do with their ability to |
| the readability formulae mentioned in the first | | | | comprehend a text. For instance, Barry and |
| part. | | | | Lazarte (1998) report a result of a study on |
| 1/ Determining linguistic difficulty of a written text | | | | effects of background knowledge and syntactic |
| How difficult a text is to read would appear to be | | | | complexity on recall and inference generation |
| related to whether or not we understand the | | | | among high school second language learners of |
| words in a text, and whether or not these words | | | | Spanish. Their findings suggest a complex |
| are put together in an easy‑to‑follow | | | | interaction between the level of syntactic |
| manner. In fact, readability formulae do use these | | | | complexity of the text itself and the prior |
| basic criteria and discuss them in terms of | | | | knowledge of students on the generation of |
| vocabulary difficulty and syntactic complexity | | | | inferences about text. Finally, it could be said that |
| (Olson, 1984). Vocabulary difficulty refers to the | | | | material that is easily read by a group will not be |
| degree to which a text contains words that are | | | | as easy for another and that is partly because |
| unfamiliar and/or difficult to understand. Syntactic | | | | learners have different background knowledge |
| complexity refers to the degree to which the | | | | about different topics. Therefore, readability |
| sentences in a text have complicated grammatical | | | | formulae should consider this important factor |
| structures. I shall now discuss these basic | | | | when measuring the readability of any text.d) |
| criteria.a) Vocabulary difficulty | | | | Textual coherence |
| Word difficulty is a criterion used by almost all the | | | | Most of the readability formulae limit the scope of |
| standard readability formulae. Difficulty is | | | | their research to the sentence boundary. |
| measured either by the presence or the absence | | | | Moreover, they evaluate texts in terms of the |
| of a word on a list of frequently used words, | | | | properties each of their sentences contain. |
| such as Kucera and Francis's word list (1967), or | | | | However, the readability of a text is not limited to |
| by word length which is determined by counting | | | | a function of the average length of its words or |
| the number of syllables in the word. However, | | | | the average number or words in its sentences; its |
| both methods appear to have serious limitations, | | | | readability is rather a function of the connections |
| as I show below.b) Word lists | | | | and interrelationships between the sentences in a |
| A number of readability formulae such as | | | | text. Bailing and Grafstein (1991), suggest that in |
| Dale‑Chall (Dale and Chall, 1948) use word lists. | | | | order for a text to beÂunderstandable, it must |
| The assumption underlying the use of word lists | | | | make clear to the reader the basic logical |
| to measure the difficulty of vocabulary in a text | | | | relationships between sentences so that he/she is |
| is that frequently used words will be more familiar | | | | able to figure out from the text, who is doing |
| and therefore easier to understand. However, in | | | | what to whom. In other words, the sentences in |
| order to have a word list that includes either | | | | a text must have logical and sequential |
| familiar or difficult words, one must assume that | | | | relationships in order to make the text easy to |
| the words in a language remain relatively stable | | | | comprehend. Finally, Harrison (1986) states that |
| and this is impossible due to the fact that | | | | the presence of explicitly‑stated logical |
| vocabulary tends to change quite rapidly. If we | | | | connections often makes a contribution to the |
| consider the following words from Dale's 3000 | | | | coherence of a text. |
| word list (Harrison, 1980, pp. 153‑163): hairpin, | | | | 4/ Limitations and validity of readability formulae |
| maypole, cobbler and washtub, it would appear to | | | | Despite the fact that readability formulae are |
| us that these words are likely to be unfamiliar to | | | | widely used and relied upon in designing |
| young readers (elementary school children) | | | | textbooks, they have so many limitations which |
| because they are rarely used (they are out of | | | | can affect their validity to a certain extent. |
| fashion). On the other hand, some other new | | | | Readability formulae were originally developed to |
| words such as download, hyperlink have entered | | | | try to ensure that a school textbook for a |
| the language and have become extremely familiar | | | | particular grade was appropriate for native |
| to many if not most people. Now, we might say | | | | speaker children at that grade level. However, |
| simply that the former words should be taken off | | | | even within the same grade level, children differ |
| the list of familiar words and the latter words | | | | from each other and sometimes these |
| should be added instead. Since a number of | | | | differences are very great to the extent that the |
| readability formulae use certain word lists most of | | | | same readability formula cannot possibly be |
| which are old, it could be inferred that the results | | | | adequate for all of them. In other words, |
| of using these formulae do not really represent or | | | | readability formulae do not distinguish audiences; |
| provide the accurate level of readability for the | | | | they rather assume that all readers are alike. If |
| current written texts. | | | | this is the case with native speaker children, then |
| In addition, word lists never take into account that | | | | these formulae are more likely to have more |
| different socio‑cultural groups of the same | | | | problems when used with second/foreign language |
| generation have very different core vocabularies. | | | | learners. Klare (1963,pp. 24‑25) states: |
| Nor can they accommodate the fact that | | | | Formulae measure only style. They do not touch |
| different professional groupings can have radically | | | | on content, organization, word order, format, or |
| different vocabularies (Kittredge and Lehrberger, | | | | imagery. Nor do they take into account the |
| 1982). Another problem with word lists is that | | | | differing purpose, maturity, or intelligence of |
| words frequently have more than one meaning. In | | | | readers. |
| such case, what meaning is to be considered a | | | | Based on this, it becomes clear to us that |
| familiar one? It is only through viewing and | | | | readability formulae are never meant to say |
| examining the word in the context of a particular | | | | anything about forms or other primarily visual |
| text that one can know about the intended | | | | materials although these forms and other visual |
| meaning. In conclusion, word list provide neither an | | | | materials play a big role in enabling the reader to |
| indication of which meaning is common (familiar), | | | | understand the text. In another related study, |
| nor a means to identify the particular meaning | | | | Klare (1976), reviewed 36 studies that attempted |
| that is pertinent in a specific context.c) Word | | | | to improve comprehension by improving |
| complexity | | | | readability scores. She concluded that improving |
| In many readability formulae (for example, the | | | | comprehension does not correlate well with |
| Fry graph, the Flesch formula, Gunning Fog | | | | improving readability scores because readability |
| formula, see Harrison, 1980), the longer a word is, | | | | formulae measure only what can be counted in |
| the more difficult it is assumed it is to | | | | the text. The reason why this experiment didn't |
| comprehend. The idea is applied in different ways. | | | | work is that readability formulae only measure |
| In the case of Flesch and the Fry formula for | | | | the symptoms of readability. Difficult ideas are |
| example, the criterion is the number of syllables | | | | usually expressed in difficult language (which is |
| per 100 word of text whereas for the Gunning | | | | appropriate), the ideas won't become less difficult |
| Fog formula, the criterion is the number of | | | | just because the language is simplified. It is thus |
| polysyllabic words. Regardless of how word | | | | clear that judgment about level of text difficulty |
| complexity is measured by different formulae, | | | | go beyond the statistical nature of readability |
| however, the assumption is that word length | | | | formulae that tend to rely on measures of |
| directly relates to the ease or difficulty with which | | | | semantic (usually word length or word frequency) |
| a text can be read. | | | | and syntactic (usually sentence length) features. |
| The problem with this assumption however, is | | | | In addition, readability formulae do not consider |
| that long words are not always the most difficult | | | | the fact that there is an interaction between the |
| to understand. On the contrary, there appear to | | | | text and the reader. They do not consider some |
| be a significant number of instances where mono | | | | important factors on the reader's side such as his |
| or bisyllabic words are more difficult and unfamiliar | | | | knowledge about the text and his motivation to |
| than longer polysyllabic words. If we consider the | | | | read. All these factors have a great effect on |
| words curr and unemployment, the number of | | | | making the text much easier or much difficult to |
| readers who know the latter term is quite likely | | | | read. The only thing these formulae consider is |
| greater than those who know the former. From | | | | the text and they ignore all other factors. Thus, |
| the previous example, we could say that word | | | | they are inadequate because they consider only |
| length is often the direct result of affixation | | | | one source of information which is contained on |
| (attaching prefixes e.g. un‑ or suffixes | | | | the printed page. |
| ‑ment with shorter words and word stems, | | | | Since readability formulae are designed to analyse |
| as in unemployment). In actual fact, people are | | | | prose text, problems arise when these formulae |
| likely to be aware of the functions of these | | | | are applied to technical, scientific, and |
| affixes and prefixes and therefore, a more | | | | mathematical materials that contain a great deal |
| complex word ( a word with one or more | | | | of numerical and symbolic language and specialist |
| affixes) may be just as easy to understand as a | | | | vocabulary in addition to prose. Of course, being |
| simple word. However still, reading formulae that | | | | applied to these kinds of texts, readability would |
| count the number of syllables per hundred words | | | | continue to use the traditional measures of word |
| would favor a text that has only uninflected | | | | length and sentence length and this in turn, would |
| forms of verbs. | | | | never reflect the actual readability level of these |
| Furthermore, Randall (1988) performed | | | | texts. Finally and based on all that mentioned |
| experiments on the relationship between | | | | above, we should not rely on readability formulae |
| comprehension and morphological complexity. She | | | | alone in selecting materials; we should rather seek |
| tested children between ages of 3 and 7 on their | | | | the opinion of experts or get reliable consensus |
| comprehension of morphologically complex terms | | | | opinions to examine characteristics that formulae |
| (nouns derived from verbs by the affixation of | | | | cannot predict. It is only if we incorporate all these |
| ‑er). Her results suggest that the | | | | factors that readability formulae could be of |
| comprehension of complex terms has nothing to | | | | benefit to us; otherwise we would not really get |
| do with word length or frequency of occurrence, | | | | much out of using them. |
| as would be predicted by readability formulae.d) | | | | 5/ Examining the readability of some texts. |
| Syntactic Complexity | | | | In this part, I will apply the previously explained |
| Almost all readability formulae equate sentence | | | | readability formulae in order to measure the |
| length with syntactic complexity. They consider | | | | readability of two different texts. I will start first |
| that there is a correlation between the average | | | | by examining Text A (See Appendix 3) using the |
| length of sentences in a text and the difficulty of | | | | four formulae and then I will move to examine |
| that text. In fact, closer examination shows that | | | | Text B (See Appendix 4) using the same |
| sentence length may actually facilitate | | | | formulae. |
| comprehension, rather than impede it. For | | | | |
| example, the presence of coordinating | | | | |
| conjunctions and logical connectives increases the | | | | |
| length of a sentence, but these connectives often | | | | 4/ Â McLaughlin 'SMOG' Formula. |
| make explicit its communicative intent. Compare | | | | Because Text (B) does not have 30 sentences, I |
| for example, the sentences of (1) with the | | | | have considered the total number of sentences in |
| sentence in (2): | | | | the text and the total number of words with 3 or |
| (1). Â Â Â Â Â a. I could not answer your | | | | more syllables as recommended by McLaughlin |
| e‑mail.b. All the computers were occupied. | | | | (1969), see Appendix (2). |
| (2)Â Â Â Â Â Â Â a. I could not answer your | | | | The total number of sentence in Text B = 18 |
| e‑mail because all the computers were | | | | The total number of words with 3 or more |
| occupied. | | | | syllables = 58 |
| In (1), there could be various reasons that the | | | | The corresponding conversion number = 1.67 |
| author was unable to respond to an e‑mail | | | | The Grade Level = The total number of words |
| aside from the fact that all computers were | | | | with 3 or more syllables * The conversion number |
| occupied; he could have not had enough time to | | | | = 58 * 1.67 = 96.86 |
| wait until one of the computers is free, he could | | | | The value 96.86 falls between (91 ‑ 110) on |
| have a lecture or a meeting so he could not | | | | The SMOG Conversion Table 1. Therefore, the |
| wait..etc. The because in (2), on the other hind, | | | | grade level is 13. |
| explicitly links the author's inability to answer the | | | | |
| e‑mail to the occupying of all computers. In | | | | As can be seen in the above table, no two |
| conclusion and based on the above examples, it | | | | formulae come up with exactly the same grade |
| could be said that equating syntactic complexity | | | | level or reading age. However, some formulae |
| with sentence length is neither a useful nor an | | | | come up with very close values for both level and |
| accurate criterion for measuring readability. | | | | age, as in the Gunning FOG and the SMOG |
| 2/ Examples of readability formulae | | | | formulae. Similarly, Larrick (1954) compared the |
| There is a huge number of readability formulae | | | | grade placement indicated by five formulae for |
| which have been designed for very different | | | | two children's books. He found out that there |
| purposes, and for a variety of age groups. These | | | | were considerable variations between the |
| formulae have been designed by psychologists, | | | | formulae in terms of the grade level. This |
| researchers and classroom teachers and they | | | | emphasises the fact that readability can not be |
| have been derived using different statistical | | | | accurately measured by merely using readability |
| techniques and measurements. In this part, I will | | | | formulae. The learner's ability to comprehend, the |
| focus only on four of them for two reasons. | | | | style, and the rest of the factors that have been |
| Firstly, these four are some of the most | | | | mentioned in part one should be taken into |
| commonly used readability formulae. Secondly, | | | | account and should never be ignored when |
| they are very easy to use and they don't require | | | | measuring readability. |
| complex mathematical or statistical methods. | | | | Conclusion |
| These formulae are as follows: | | | | In conclusion, researchers and textbook designers |
| A) The Flesch Formula | | | | should be aware of the fact that using readability |
| The Flesch formula is one of the very widely | | | | formulae only does not reflect the actual |
| used and well‑known readability measures | | | | readability level of a text. In addition to these |
| which was designed by Flesch (1948). The formula | | | | formulae, they should try to incorporate all the |
| uses the average number of words per | | | | other factors that could affect the readability of |
| sentences and the average number of syllables | | | | texts whether these factors are available within |
| per 100 words as variables. Flesch was interested | | | | the texts (word complexity and sentence length) |
| in assessing adult reading material, so he chose a | | | | or outside the texts (factors that are to do with |
| difficulty index that did not relate to grades, but | | | | the reader's knowledge, motivation and the |
| to a notional comprehension score out of 100 | | | | individual differences between readers within the |
| (Hlarrison, 1980). When applied to a document, the | | | | same grade level). They should try to take these |
| Flesch formula results in a number ranging from 0 | | | | factors into account when measuring the |
| to 100. The lower the score, the more difficult | | | | readability of written material. Moreover, they |
| the material is to read and comprehend. | | | | should consult reading experts and teachers in an |
| Moreover, Flesch provided a transformation table | | | | attempt to reach a consensus with regard to the |
| which makes it possible for us to relate the | | | | readability of texts and their suitability to the |
| reading ease score to age level. This | | | | students' grade level. |
| transformation table is a nomograrn (a figure) | | | | Bibliography |
| which can be easily used by using a ruler between | | | | Bailing, A and Grafstein, A. (199 1). The |
| the left‑hand and right‑hand columns of | | | | assignment of thematic roles in Ojibwa. Linguistics |
| the figure. The Flesch formula is not only used | | | | 29, 397‑422. |
| manually, it is also used in most of the word | | | | Barry, S and Lazarte, A.A. (1998). Evidence for |
| processing programs such as Microsoft word. The | | | | mental models: how do prior knowledge, syntactic |
| only difference is that in the computer adaptation | | | | complexity and reading topic affect inference |
| of the Flesch formula, the syllable count is | | | | generation in a recall task for non‑native |
| replaced by a vowel count which gives almost the | | | | readers of Spanish? The Modern Language Journal |
| same results as if the count was that of a | | | | 82 (2), 176‑193. |
| syllable. Research by Coke & Rothkopf (1970) has | | | | Coke, E and Rothkopf, E (1970). Note on a simple |
| showed that counting vowels provided very | | | | algorithm for a computerÂ-produced reading |
| similar estimates to counting syllables. | | | | ease score. Journal of Applied Psychology 54, |
| B) The Fry Graph | | | | 208‑210. |
| Like most readability formulae, the Fry Graph has | | | | Fry, E. (1969). The Readability graph validated at |
| a syntactic factor which is the sentence length | | | | primary levels. The Reading Teacher, 22, |
| and a semantic factor which is the number of | | | | 534‑538. |
| syllables. The Fry Graph is one of the most | | | | Olson, A.V. 1984. Readability Formulae‑ Facts |
| straightforward ways of obtaining a readability | | | | or Fiction. University of Victoria, British Columbia |
| index. The use of the graph is very useful in this | | | | (ERIC Document Reproduction Service No. ED 258 |
| formula for different reasons as stated by | | | | 143). |
| Harrison (1980): | | | | Kuceral, H and Francis, W.N. (1967). Computational |
| 1) it saves time on making calculations | | | | Analysis of Present‑Day American English. |
| 2) it offers visual information when numerical | | | | Province, RI: Brown University Press. |
| results might give a spurious impression of | | | | Harrison, C. (1980). Readability in the Classroom. |
| accuracy | | | | Cambridge: Cambridge University Press. |
| 3) the user of the graph can tell at a glance if a | | | | Harrison, C. (1986). New directions in text |
| passage is in comparative term more difficult than | | | | research in readability. In Cashdan, Asher (Ed.), |
| average in vocabulary or in sentence length. | | | | Literacy: Teaching and Learning Language Skills. |
| (Harrison, 1980.p 73) | | | | Basil Blackwell, Oxford, pp. 61‑81. |
| In the graph, the curve represents normal texts. | | | | Kitteredge, R and Lehrberger, J . (Eds.), (1982). |
| So clearly, points above the line, or towards the | | | | Sublanguage: Studies of Language in Restricted |
| top right quadrant, will represent passages with | | | | Domains. Berlin and New York: Walter de Gruyter. |
| higher than average vocabulary difficulty. On the | | | | McLaughlin, G. (1969), SMOG grading: A new |
| other hand, points below the curve, towards the | | | | readability formula. Journal of Reading, 12 (8) |
| bottom left quadrant, will suggest greater than | | | | 639‑646. |
| average sentence length (ibid). To implement the | | | | Randall, J.H.(1988). Candlestick‑makers: the |
| Fry Graph, one should first randomly select three | | | | problem of morphology in understanding words. In: |
| sample passages of exactly 100 words (from the | | | | Davidson, A Â and Green, G (Eds.), Linguistic |
| beginning, the middle, and the end of a text). | | | | Complexity and Text Comprehension: Readability |
| After the total number of sentences and syllables | | | | Issues Reconsidered. L. ErIbaum, Hillsdale, NJ, pp. |
| for each of the 100‑words passages has | | | | 223‑245. |
| been recorded, the average number of sentences | | | | Klare, G. R. (1963). The measurement of |
| and syllables is computed. The resulting figures are | | | | Readability. Ames, IA: Iowa University Press. |
| then plotted on the Fry Graph and the resulting | | | | Larrick, N. (1954). Try it on for fit. Library journal, |
| coordinate point is associated with an established | | | | 79, (April), 729‑733. |
| grade level designation (further explanation of the | | | | Van Dijk, T.A and Kintsch, W. (1983). Strategies |
| use will be shown in the practical part). The fry | | | | of Discourse Comprehension. New York: |
| Graph is appropriate for assessing materials from | | | | Academic Press. |
| the first grade through the college level (Fry, | | | | Gilliland, John. (1972). Readability. London: University |
| 1969). | | | | of London Press. |
| C) The FOG Index Formula | | | | Appendix (1) |
| The Fog Index, which uses as few as 100 | | | | EDWARD FRY'S READABILITY GRAPH |
| successive words to determine both sentence | | | | Appendix (2): |
| length and the number of words with three or | | | | Taken from: McLaughlin, G. (1969), SMOG grading: |
| more syllables, was developed by Gunning (1968). | | | | A new readability formula. Journal of Reading, 12 |
| The counts are then substituted into a formula | | | | (8) 639‑646. |
| and the reading difficulty is calculated according to | | | | Use this formula and SMOG Conversion Table If |
| formal grade level in school. For longer written | | | | for material containing less than 30 sentences, but |
| works, the author recommends selecting several | | | | not less than 10 sentences. |
| 100 word samples from various parts of the | | | | 1.             Count the total number of |
| material and then counting both the sentence | | | | sentences in the material. |
| length and the number of words with three or | | | | 2.  Find the total number of sentences and the |
| more syllables for all the samples. Finally, the | | | | corresponding conversion number in SMOG |
| average of the previous counting should be | | | | Conversion Table II. |
| calculated and the Fog Readability Index is found: | | | | 3.  Multiply the total number of words with 3 or |
| Fog Readability Formula: Grade Level = 0.4 * | | | | more syllables by the conversion number. Use this |
| (average sentence length + percentage of words | | | | number as the word count to find the correct |
| with three or more syllables). | | | | grade level from Table 1. |
| The formula is clearly similar to that of Flesch. | | | | SMOG Conversion Table 1 SMOG Conversion |
| The factors (sentence length and number of | | | | Table 2 |
| words) remain the same but the counting of | | | | (for longer |
| three syllable words will be easier and requires | | | | Â Â Â Â Â Â Â Â Â Â Â Â Â Â (use on material with < 30 |
| less time than the syllabus count required by the | | | | sentences) |
| Flesch. A further advantage lies in the simplicity of | | | | |
| calculation required to resolve the equation. This | | | | Appendix (3) |
| formula is appropriate for assessing materials | | | | The three sample passages in Text (A) |
| from the fourth grade through the college level. | | | | Sample One: |
| D) The SMOG Formula | | | | Pets boost children's health |
| This formula gives the SMOG grade which is the | | | | Children who have pet animals at home have |
| reading grade that a person must have reached if | | | | stronger immune systems and are less likely to |
| he is to understand fully the text assessed | | | | take days off school sick, a study suggests. |
| (Gilliland, 1972.p 94). To implement the SMOG | | | | Researchers at Warwick University in Coventry |
| formula, one should count 10 consecutive | | | | found that having a cat or dog exposed children |
| sentences near the beginning, 10 near the middle | | | | to more infections early in life. |
| and 10 near the end of the text. Then, in the 30 | | | | However, this exposure boosted their immune |
| selected sentences, the number of words with | | | | systems in the medium term and meant these |
| three or more syllables is counted. Finally, the | | | | children attended school more often, on average, |
| square root of the number of the polysyllabic | | | | than pupils who did not have pets. |
| words is counted and added to 3. It is clear here | | | | The authors said the benefits were most |
| that the sentences are used only to prepare the | | | | pronounced in children aged between five and |
| samples; they are not used in the calculation. The | | | | eight years. |
| SMOG formula gives a readability score of 2 | | | | Dr June McNicholas and colleagues tested the |
| grades higher because McLaughlin used complete | | | | saliva of 138 (eight is excluded). |
| success as his criterion for comprehension (ibid). | | | | Sample Two: |
| The SMOG is quicker to work out by hand as it | | | | High levels of IgA suggest that the immune |
| does not require counting every word in every | | | | system is under strain while low levels show that |
| sentence but the words with three or more | | | | it is vulnerable to infection. |
| syllables found in 30 sentences. | | | | Health benefits |
| In the case where a text has less than thirty | | | | The study showed that antibody levels among |
| sentences, McLaughlin (1969) recommended that | | | | pet owning children were significantly more stable, |
| the number of polysyllabic words and the number | | | | indicating that they had robust immune systems. |
| of sentences should be counted in the whole text. | | | | Pet owning children were found to have an extra |
| The process of finding the readability in a text of | | | | nine days at school over the course of the year |
| less than 30 sentences is demonstrated in the | | | | compared to those without animals. |
| practical part (examining the given texts). It is also | | | | According to the researchers, the findings appear |
| available in the Appendix. | | | | to support the so‑called "dirty hypothesis". |
| 3/ Factors affecting readability | | | | It suggests that too much cleanliness early in life |
| As we have seen previously, almost all the | | | | can leave the immune system weakened later on. |
| readability use word complexity, sentence length | | | | Sample Three: |
| and syntactic complexity represented by word | | | | Dr McNicholas, a health psychologist who led the |
| length or the number of syllables in a word. Many | | | | study, said: "Pet ownership was significantly |
| other factors that could affect readability to | | | | associated with better school attendance rates. |
| some great extent have not been considered by | | | | "This was apparent across all classes, but was |
| these formulae. Here, I will discuss how these | | | | most pronounced in the lower school (classes one |
| factors affect readability and why they should be | | | | to three, aged groups five to eight)". |
| taken into account when measuring readability. | | | | "Here, the pet owners benefited from up to 18 |
| The factors are as follows:a) Grammar | | | | extra half days schooling per annum than their |
| I have mentioned before that most of the | | | | non‑pet owning counterparts." |
| readability formulae tend to equate syntactic | | | | However, Dr McNicholas warned that pets can |
| complexity with sentence length which is really a | | | | also pose health risks to children. |
| very narrow way of looking at complex syntax. | | | | One of the biggest risks is the roundworm |
| By doing this, readability formulae ignore some | | | | Toxicara canis which infects dogs and can cause |
| basic issues such as the conventional use of | | | | anything from stomach ache to eye damage. |
| prescriptive grammar for standard written English. | | | | Appendix (4): |
| In other words, they ignore the fact that errors | | | | The Three Sample Passages in Text (B): |
| or deviations from the standard grammar may | | | | Sample One: |
| make a text more difficult to comprehend and | | | | Pets And Children: A Lifelong Friendship |
| they do not take into account that the presence | | | | Is your voice beginning to sound like a broken |
| of a substantial number of grammatical errors can | | | | record? Are you always nagging your kids to do |
| seriously impede the reader's ability to | | | | their homework? Are you having trouble |
| comprehend the text. If we consider the potential | | | | motivating your child to stop watching TV or |
| confusion caused by a faulty parallelism such as in: | | | | playing video games and to play outside instead? |
| ‑ Not only do we dislike him but also his wife. | | | | Then consider making a pet part of your family. |
| It is not really clear whether the intended meaning | | | | Many people are aware of the health benefits |
| of this sentence was that we dislike both him and | | | | that come from having a pet, includinglowering |
| his wife, or that we are not the only ones who | | | | high blood pressure, preventing heart disease and |
| dislike him; his wife dislikes him too. There are | | | | combating depression. However, what parents |
| some other grammatical errors that could be a | | | | may not realize is that adding Spot, Polly or Mr. |
| source of confusion in a written text and some | | | | Whiskers to the family can be advantageous to |
| of these are run‑on sentences, sentence | | | | the other bundles of joy |
| fragment, faulty parallelism and pronoun | | | | Sample Two: |
| references. In conclusion, we could say that | | | | While little children are too young to worry about |
| grammatical errors must be considered in the | | | | preventing stress or lowering health care costs, |
| process of measuring the readability of any text | | | | there are numerous benefits they can experience |
| in order to make that measurement precise and | | | | from having a family pet. |
| accurate.b) Style | | | | Pets, whether a dog, cat, bird, hamster, reptile or |
| Sometimes, a text may be perfectly grammatical, | | | | fish, help children gain a sense of independence |
| but certain stylistic properties of some text may | | | | that can set them on the path to becoming |
| make them relatively more difficult for people to | | | | mature, responsible adults. |
| process than others. One of these stylistic | | | | Pets Teach Kids To Be Responsible |
| properties is the number of clauses in a sentence | | | | Children can learn the importance of responsibility |
| and the type of these clauses. In actual fact, | | | | at an early age by acting as a caretaker for a |
| there is empirical evidence that certain syntactic | | | | pet. Fish are a terrific first pet because children |
| properties make some texts easier to process | | | | can play a large role in caring for them. However, |
| than others. For instance, Van Dijk and Kintsch | | | | other pets that require more attention |
| (1983) note that sentences with relative clauses | | | | Sample Three: |
| are easier to parse when a relative pronoun is | | | | Showing children what it means to be responsible |
| overtly present than when it is not. Van Dift and | | | | for another creature's survival can result in |
| Kintsch compare the following sentences and note | | | | teaching important life lessons such as discipline, |
| that people perform better on comprehension | | | | patience, kindness and attentiveness. |
| tasks in (1) with overt relative pronouns, than in | | | | Pets Can Help Kids Develop Discipline |
| (2), where they are absent: | | | | Walking the dog, feeding the guinea pig and talking |
| 1) The pen which the author whom the editor | | | | to the parrot can serve as fun study breaks for |
| liked used was new | | | | kids, and a replacement for television programs |
| 2) The pen the author the editor liked used was | | | | and video games. These petÂrelated activities |
| new (Van Dijk and Kintsch, 1983, p.29) | | | | help children remain focused on the task at hand, |
| It is thus clear that the syntactic structure of | | | | and are less likely to become distractions that will |
| sentences is not the only stylistic property of a | | | | prevent homework and chores from being |
| text that can affect readability. The use of | | | | completed. |