These are detailed results of the study described in:

Kessler, B., & Treiman, R. (2001.) Relationships between sounds and letters in English monosyllables. Journal of Memory and Language, 44, 592-617.

Reading and spelling consistencies were computed for onset, vowel, and coda units, over this list of words. The referenced word list gives an alignment for each word, showing how the letters and sounds were assigned to the three parts of the syllable.

Reading Vowels

Summaries across all Vowels

Analysis over each Vowel

AdultsChildren
Distinct Vowel strings 68 46
At ceiling 39 23
Improved by Onset 2 0
Improved by Coda 22 11
Details Details

Effect of Consonant Cluster Length on Vowel Correspondences

Given Onset

C = .729, improvement of 0.004 over average permuted C of .726 (p = .027)

Given Coda

C = .757, improvement of 0.038 over average permuted C of .729 (p = .000)

Reading Onsets

Summaries across all Onsets

Analysis over each Onset

AdultsChildren
Distinct Onset strings 89 60
At ceiling 79 56
Improved by Vowel 4 0
Improved by Coda 0 0
Details Details

Reading Codas

Summaries across all Codas

Analysis over each Coda

AdultsChildren
Distinct Coda strings 145 65
At ceiling 137 61
Improved by Onset 0 0
Improved by Vowel 2 0
Details Details

Spelling Vowels

Summaries across all Vowels

Analysis over each Vowel

AdultsChildren
Distinct Vowel strings 15 15
At ceiling 0 0
Improved by Onset 4 1
Improved by Coda 14 13
Details Details

Effect of Consonant Cluster Length on Vowel Correspondences

Given Onset

C = .540, improvement of 0.007 over average permuted C of .536 (p = .000)

Given Coda

C = .596, improvement of 0.112 over average permuted C of .536 (p = .000)

Spelling Onsets

Summaries across all Onsets

Analysis over each Onset

AdultsChildren
Distinct Onset strings 63 50
At ceiling 41 39
Improved by Vowel 4 1
Improved by Coda 0 0
Details Details

Spelling Codas

Summaries across all Codas

Analysis over each Coda

AdultsChildren
Distinct Coda strings 93 52
At ceiling 58 40
Improved by Onset 1 1
Improved by Vowel 11 5
Details Details