THE EFFECTS OF SYNTHETIC PHONICS TEACHING
ON
A seven year longitudinal study
http://www.scotland.gov.uk/Publications/2005/02/20688/52449
Rhona Johnston 1 and Joyce Watson 2
1.
Department of Psychology,
2.
[Boldface is added for emphasis.
Comments are in brackets and italics.]
[This
research probably qualifies as level 3, or certainly level 2 research. Please
check the definitions in “Guidelines for evaluating research and research
claims.”]
CHAPTER ONE INTRODUCTION
BACKGROUND
1.1 There has been much debate in
recent years about just how children should be taught to read. The phonic
approach, whereby children are shown that letter sounds are a guide to the
pronunciation of words, has a long history, starting to develop in the
nineteenth century (Morris, 1984). In
this approach, the sounds of the letters of the alphabet are taught, and
children learn the correspondences between letters and groups of letters and
their pronunciations (
[There
are several kinds of phonics instruction. In analytical phonics, children focus on whole words, and compare and
contrast them (slip/slop, cat/fat) to figure out the sounds that go with the
letters. This is in general the whole
language approach to phonics. In synthetic phonics, students are first
taught the sounds that go with a few letters (m says mmm, s says sss, a says
aaa) than then students are taught to use this knowledge to sound out words
written with those letter—ma, sam, am. Gradually, more letter-sounds and words
to decode with these letters are added.]
[Please read a little on “phonics”—the alphabetic principle—before you go on.
http://reading.uoregon.edu/au/au_what.php ]
ANALYTIC PHONICS
1.2 In analytic phonics, the
predominant method in the
1.5 We have carried out a number of
studies to examine the effects of different types of teaching programmes [intervention variables] on children's
progress in learning to read. [outcome
variables] Watson (1998) carried out a study of 228 children learning to
read in
[The
researchers use past research as the basis for the current research. Analytic phonics does not appear to have good
results. Maybe synthetic phonics will
have a better effect.]
SYNTHETIC PHONICS
[Synthetic
phonics is the challenge to whole language (analytic phonics)] So, this research is not merely TESTING the
effects of analytic vs. synthetic phonics, it is challenging whole language,
which had been the dominant method of reading instruction. Recall the data cited
above on analytic phonics (whole language): “When tested at this stage, the children
were reading 5 months below chronological age.”]
1.7 This led us to look at synthetic phonics, which is a very accelerated form of phonics that does not begin by establishing an initial sight vocabulary. With this approach, before children are introduced to books, they are taught letter sounds. After the first few of these have been taught they are shown how these sounds can be blended together to build up words (Feitelson, 1988). For example, when taught the letter sounds /t/ /p/ /a/ and /s/ the children can build up the words 'tap', 'pat', 'pats', 'taps', 'a tap' etc.
AIMS AND OBJECTIVES
1.8 In this report we present the findings of a 7 year study in which we examined the effects of teaching synthetic phonics [intervention variable] on literacy attainment. [outcome variable] In an earlier study we had found that 5 year old children getting a supplementary synthetic phonics programme had better word reading, spelling and phonemic awareness skills than children getting a supplementary analytic phonics programme (Johnston and Watson, 2004).
[In
other words, they first did pilot
research on synthetic phonics. Note that the new study traces the same
children for seven years. This is a longitudinal study. It will show if
early effects of an intervention continue.]
1.9 In the new study we first of all wanted to examine whether children made better progress in reading and spelling when taught by the synthetic phonics approach, compared with the analytic phonics approach, when the programmes were carried out by the class teachers. Secondly, a key part of our study was to examine whether training in hearing sounds in spoken words, without showing the children print or letters, is an effective part of the school curriculum.
[This
second part is training in phonemic awareness.
Hearing the separate sounds in words.]
…(I)t was decided to make a rigorous test of synthetic phonics
teaching by giving this programme to the group that had the preponderance of
children from less well off backgrounds….
VARIABLES AND MEASURES OF THE VARIABLES.
VERBAL ABILITY [They measured verbal ability because verbal ability is associated with
IQ and IQ is associated with reading. By
finding out children’s verbal ability first, they could later find out if the
different phonics programs (analytic and synthetic) had different effects
depending on verbal ability. In other
words, the researchers are considering the possible effects in extraneous variables—in this case,
verbal ability. If they DON’T consider
extraneous variables, they will not know whether the KIND of phonics
instruction or the extraneous variables makes a difference in reading skill.]
2.1 …(I)t was important to gain some measure of ability, as reading has been found to correlate with IQ. One common test of verbal ability in IQ tests is vocabulary knowledge. In this study, therefore, receptive vocabulary knowledge was tested with the British Picture Vocabulary Scale (Dunn and Dunn, 1982) in Primary 1. This yields scores standardised for age, with a mean of 100. In this test, children are read out a word and shown four pictures. Their task is to point to the picture that represents the spoken word. Vocabulary knowledge has been found to be the best single predictor of school success (Dale and Reichert, 1957).
[Now,
there are many reading subskills and many other factors (extraneous factors)
that can affect reading. These were measured.]
LITERACY SKILLS
[Recall
the article “Whole language lives.” Remember that evidence to support whole
language was rarely from objective measures and standardized tests, but was
testimonials and books “flying around” the room. The researchers, here, use validated and
objective measures. They also measure MANY aspects of reading.]
Letter Knowledge
2.2 This was pre and post tested in Primary 1. Pupils were shown a sheet with all 26 letters of the alphabet (not in alphabetical order) in lower case print. Each child was asked to give the name and the sound for each letter. Percentage correct performance in producing (i) names and (ii) sounds was calculated for each child.
Emergent
2.3 The Clay 'Ready to Read' Word Test (Clay, 1979) was used in Primary 1 pre and post test. Each child was asked to read a practice word (not scored) followed by 15 very high frequency single words. This test was devised by Clay to include words known by children at the very earliest stage of learning to read. Percentage correct performance was calculated for each child.
Word
2.4 The British Ability Scales Word
2.5 The Primary
Spelling
2.6 The Schonell Spelling Test (Schonell and Schonell, 1952) was used in May/June from Primary 1 to Primary 6. A list of words is dictated to the class. Each word is read out singly and then again in a sentence. In May/June Primary 7 the spelling section of the Wide Range Achievement test was used, as too many children were at ceiling on the Schonell Test. Unlike the Schonell, the WRAT spelling test was administered individually.
Nonword reading
2.7 Nonword reading tests measure phonic reading skill. The children were asked to read simple CVC nonwords pre and post test i.e. hig, nal, kug, bis, gok, dep, foy, kun, ged, lar, jek, lan, mip, pos, ruk, dal, ped, fik, lom, sul. For a correct score, all three sounds had to be correct in context free English pronunciation. That is, a sound was correct if it had that pronunciation in any English word.
2.8 Underachieving children were asked to read both CVC nonwords and five different types of one syllable nonwords, 12 of each type, namely, words with initial consonant blends, final consonant blends, vowel digraphs, vowel lengthening silent 'e' and initial consonant blends with vowel digraphs. Children are told that the nonwords are made up and do not make sense as they are not real words. Children are asked to say each nonword and they are categorised as accurate if an acceptable pronunciation is produced.
Irregular words
2.9 In March of Primary 1 an analysis was made of the children's ability to read 7 irregular words from the BAS Word Reading Test. These were selected as being difficult to read on the basis of sounding and blending the letters. The percentage of correct items for each child was calculated. The items were 'the, one, you, said, money, light, glove'.
2.10 In March of Primary 1, at the
end of the 16 week programme, the children were asked to read a list of 40
words. They were then asked to read 5 clue words that would assist them in
reading the 40 words by analogy on second showing, i.e. prior exposure to
'ring' should facilitate the pronunciation of 'sing'. In order to ensure that
all of the children knew how these words were pronounced, if the child could
not read the word, it was pronounced for them. These clue words were then
removed, and the 40 words shown again. The gain in reading skill after exposure
to the clue words was assessed. The items were taken from Muter, Snowling, and
PHONOLOGICAL SKILLS
Phoneme Segmentation.
2.11 To test the children's ability to segment words into phonemes, the Yopp-Singer Test (Yopp, 1988) was used pre and post test in Primary 1. There were 3 practice items, the first item being demonstrated by the researcher and the child attempting the other two items. The test stimuli consisted of 2 and 3 phoneme words. Each child was asked to say the word spoken by the researcher and then say all the sounds in the word. An item was scored correct if all phonemes had been correctly segmented.
Generating rhyme.
2.12 The children were asked to generate rhyming words pre and post test in Primary 1. Both the tester and the child had a hand puppet. Nursery rhymes were discussed to make the task clear to the children. For practice the researcher's puppet 'said' a word and each child was asked to produce a rhyming word through his/her puppet. Twelve words were read out one at a time, using the experimenter's puppet (" hop, tall, hen, dog, man, coat, tail, door, tree, jump, tin, next") and for each word pupils were asked to give rhymes. The mean percentage number of rhymes given by each child was calculated; nonwords were accepted as rhymes.
SOCIAL BACKGROUND QUESTIONNAIRE
2.13 We developed a questionnaire to ask parents about their educational levels, attitudes to literacy learning, and their and their children's usage of books and libraries. See Appendix 1. This was sent out in January when the children were in Primary 6.
ATTITUDES TO
2.14 The ATR2 questionnaire (Ewing and Johnstone, 1981) was developed at the former Dundee College of Education, one of the purposes of the design being to elicit information about how positive children were about reading. We administered it to the children in Primary 7. See Appendix 2.
DEPRIVATION INDEX
2.15 Each school was assigned a score on the Deprivation Index devised by Clackmannanshire Council. This index is based on the percentage of unemployed, of households without a car, of the number of children and no earners, of the number of young lone parents, of school clothing grants, of free school meals, and of parents of social class 1 or 2. The schools in the sample considered disadvantaged had scores from 0.10 to 2.12, and those considered advantaged ranged from -0.59 to -0.93. The index we used was devised for the years 1997- 1998, which was when the study started.
[By
measuring so many reading subskills, the researchers can see how BROADLY the
different phonics methods affect reading.
For example, is synthetic phonics more effective than analytic phonics
ONLY regarding knowledge of letter-sound correspondence? Is analytic phonics
more effective than synthetic phonics for some skills? The researcher could not answer these
important questions if they ONLY measured knowledge of letter-sound
correspondence.]
[This
next section describes the design of the research. Notice that it is an
experiment.]
CHAPTER THREE PRIMARY 1
COMPARISON OF THE EFFECTIVENESS OF ANALYTIC AND SYNTHETIC PHONICS TEACHING
3.1 In the present study we wished to investigate whether analytic phonics [the intervention variable] teaching would be found to be as effective in developing reading and spelling skills [outcome variable] as synthetic phonics if there was an additional phonological awareness training programme.
3.2 Altogether we studied 304 children in 13 Primary 1 classes in Clackmannanshire.
Our interventions began shortly after the children started school at around the
age of 5. We had three teaching
programmes [interventions] for the
class teachers to implement.
[The
researchers had three comparison groups, each one receiving different phonics
instruction. If they ONLY studied
synthetic phonics, and if children made significant gains, they would not be able to say whether OTHER
phonics approaches would have done a better job.]
ANALYTIC PHONICS-ONLY GROUP
3.3 Four classes were taught about the relationship between letters and sounds using an analytic phonics approach (see Chapter 1).
ANALYTIC PHONICS+ PHONOLOGICAL AWARENESS GROUP
3.4 Four classes carried out a programme where in addition to analytic phonics teaching, children were taught how to segment and blend spoken words at the level of both rhymes and phonemes, without the aid of print or letters.
SYNTHETIC PHONICS GROUP
3.5 Five classes of children were taught by a synthetic phonics approach (see Chapter 1).
3.6 The programmes lasted for 16 weeks, the children receiving their interventions via scripted whole class programmes which lasted for 20 minutes a day.
[In
summary. For the FIRST year, 304 students were assigned to three kinds of
phonics groups: analytic phonics only, analytic phonics plus instruction in
phonological awareness, and synthetic phonics.
Results are reported---below---for that first year. Then the synthetic phonics group CONTINUED
with synthetic phonics, while the two analytic phonics groups THEN received (switched
to) synthetic phonics. Results over the
course of SEVEN years are then reported.
By switching the analytic phonics group to
synthetic phonics, the researchers can tell if synthetic phonics increased
their reading achievement. (It is similar to switching from a less-effective
drug to another drug to see if it works better.) Also, by going for seven years
(longitudinal research), the
researchers can tell if the effects of one or another kind of phonics
instruction CONTINUE to make a difference.
The
use of scripted lessons is important. It means that teachers were teaching the
same way. In other words, the
researchers tried to ensure that the INTERVENTION variables (different kinds of
instruction) were CONSISTENT. Recall in
the article “Whole language lives,” that this inconsistency was a big
problem. Teachers taught differently but
called it whole language. Therefore, you can’t tell if “whole language” was
effective because you don’t know WHAT teachers are doing. Below is the
description.]
9.1 At the beginning of Primary 1, one group of children learnt to read using the synthetic phonics programme. They were compared with two groups learning to read by analytic phonics programmes; one of these programmes was a standard analytic phonics programme, but the other one contained intensive training to enable children to hear sounds such as phonemes and rhymes in spoken words. At the end of the 16 week training period, the synthetic phonics group were reading words around 7 months ahead of chronological age, and were 7 months ahead of the other two groups. The synthetic phonics group's spelling was also 7 months ahead of chronological age, and was around 8 to 9 months ahead of the two analytic phonics groups. These groups were spelling 2 to 3 months behind chronological age. The synthetic phonics group also showed a significant advantage in ability to identifying phonemes in spoken words, performing even better than the group that had experienced direct training in this skill, despite the fact that these children were from significantly less advantaged homes than the other children. The phonemic awareness programme was found to have no benefits for literacy acquisition.
9.2 The two analytic phonics taught groups then carried out the synthetic phonics programme, [They switched.] completing it by the end of Primary 1. In the meantime the initial synthetic phonics group consolidated their learning rather than moving on to learn new grapheme [letter] to phoneme [sound] correspondences. During the course of Primary 2 some children in the original analytic phonics taught groups received extra help, but this was not necessary for the initial synthetic phonics taught group. At the end of Primary 2, the initial synthetic phonics taught children were significantly better spellers, and there was a trend towards better word reading skills. When separate analyses of word reading were carried for boys and girls, it was found that early or late synthetic phonics teaching had no impact on the boys reading attainment. However, the analysis for the girls showed that the early synthetic phonics trained group read words significantly better than the group that had received the standard analytic phonics programme first. We conclude that in order to foster good spelling skills, and to assist girls in learning to read, synthetic phonics should start early in Primary 1.
9.3 We have conducted an analysis of the children's performance from Primary 2 to Primary 7, comparing the same children right through in word reading, spelling and reading comprehension. This was to gain an exact measure of whether the gains the children experienced from the Primary 1 programme were maintained, or whether they increased or decreased. It was found for word reading and spelling that the gain in skill compared with chronological age had increased significantly over the years, even though the training programme had ended in Primary 1. In Primary 2, word reading was found to be 11.5 months ahead of chronological age, but in Primary 7 it was 3 years 6 months ahead. For spelling, in Primary 2 it was 1 year ahead, whereas by Primary 7 it was 1 year 9 months ahead. However, for reading comprehension, a different pattern was shown. In Primary 2 the children were comprehending what they read 7 months ahead of chronological age, but by Primary 7 this had dropped to a 3.5 months advantage.
RESULTS
3.8 At pre-test, see
Table 3.1 for means and standard deviations, the children in the three
groups were found to be matched on all tasks except for knowledge of letter
sounds.
F(2,301)= 3.3, p<.04; the analytic phonics-only group knew more letter sounds than the other two groups.
[In
other words, the researchers checked how similar the comparison groups were at
the beginning. If the groups were very
different, those differences might somehow account for differences in reading
achievement at the end. The researchers
found that the analytic phonics-only group knew more letter sounds than the
other two groups. This means that the
synthetic phonics method would have to be VERY effective (yield large gains) to
surpass the analytic phonics-only group.
This is a good test.]
SUMMARY
3.14 This chapter examined the extent to which children learning by a synthetic phonics approach read and spelt better than children taught either by a standard analytic phonics approach, or by a standard analytic phonics approach supplemented by phonemic awareness training. It was found that:
***At the end of the experimental programmes, [The first year] the synthetic phonics group read 7 months
ahead of chronological age, and 7 months ahead of the other two groups. They
were also 7 months ahead of chronological age in spelling, and spelt 8 to 9
months ahead of the other two groups.
***At the end of Primary 2, the girls who had had the programme at the start of schooling read better than those initially taught by the standard analytic phonics approach. However, the timing of this programme had no impact on the boys' word reading skills at the end of Primary 2.
***At the end of Primary 2, the
early-taught synthetic phonics group (boys and girls) spelt better than the
other two groups.
***The children from disadvantaged homes did not read words less well
than those from advantaged homes, although this was close to significance in
Primary 7.
***The children from disadvantaged homes only spelt less well in
Primary 7
For reading comprehension the disadvantaged children were ahead in Primary
2, but were behind in Primary 5 and 7
***It is evident that the children in this study have achieved well
above what would be expected for their chronological age according to
standardised tests. The actual gains may be much larger than this comparison
indicates, as many of the children came from homes experiencing economic
deprivation, and receptive vocabulary knowledge scores for the whole sample
were somewhat below average. It is hoped that in future work controls matched
on socioeconomic background can be studied, so that we can gauge the true gain.
***Overall, we can conclude that a synthetic phonics programme, as a
part of the reading curriculum, has a major and long lasting effect on
children's reading and spelling attainment. Indeed, these skills were found to be increasing many years after the end of
the programme. It is evident that the children have learnt a technique that
they can use for themselves, that they have learnt a self teaching technique.
Furthermore, although in a recent international study boys were found to have
significantly lower levels of reading comprehension than girls in all 35
countries surveyed, the boys in this study comprehended text as well as the
girls'. In fact they were slightly ahead, and if this trend continues in the
future, it may become statistically significant. Socio-economic differences in
literacy skills were non -existent in the early years of the study, only
emerging in the upper primary years. Further work will be needed, however,
to establish just how great the gains are in comparison with other approaches
to teaching reading.
Summarize
the strengths and weaknesses of this research Consider issues such as: (1) testing
hypotheses/beliefs vs. merely collecting supporting evidence; (2) objective vs.
subjective evidence; (3) clear vs. vague definitions of intervention variables
and outcome variables; (4) representativeness of samples in relation to the
population; (5) whether the claims about effectiveness and prescriptions for
the use of the methods go beyond the data; (6) having evidence of both the
intervention and the outcomes; (7) having multiple measures so that you can see
if they “say” the same thing (triangulation); (8) using longitudinal data so
you can see if there are long term effects; (9) using equivalent comparison
groups so you can compare and contrast them and see if the intervention
variables make a difference in outcome variables; consideration of extraneous
influences, such as abilities.
Strength Questions
or Weaknesses
1. 1.
2. 2.
3. 3.
4. 4.
5. 5.
6. 6.
7. 7.
8. 8.
9. 9.
10. 10.