| Study |
Randomisation |
Blinding of Assessor |
Baseline |
Withdrawals |
Missing Values |
Attrition |
Analysis |
Power |
Eligibility |
| Matheny (1978) |
B |
B |
A |
B |
B |
B |
B |
B |
A |
| Mulac (1977) |
B |
A |
B |
B |
B |
B |
B |
B |
B |
| Munro (1999) |
B |
A |
B |
A |
C |
C (.15) |
B |
B |
A |
| Reid (1996) |
B |
B |
C (medians) |
A (subgroup) |
A (subgroup) |
A (subgroup) |
B |
B |
A |
| Robertson (1997) |
B |
C |
A |
B |
B |
B |
B |
B |
A |
| Robertson (1999) |
B |
B |
A |
A |
C |
C (.13) |
B |
B |
A |
| Ruscello (1993) |
B |
B |
A |
B |
B |
B |
B |
B |
A |
| Rvachew (1994) |
B |
A |
A |
B |
C |
C (.13) |
B |
B |
A |
| Rvachew (2001) |
B |
A |
A |
A |
B |
B |
B |
B |
A |
| Schwartz (1985) |
B |
C |
B |
B |
B |
B |
B |
B |
A |
| Shelton (1978) |
B |
B |
A |
A |
C |
A (.08) |
B |
B |
A |
| Sommers (1962) |
B |
B |
A |
B |
B |
B |
B |
B |
B |
| Sommers (1964) |
B |
B |
B |
B |
B |
B |
B |
B |
B |
| Sommers (1966) |
B |
A |
B |
C |
C |
C (.10) |
B |
B |
B |
| Sutton (1999) |
B |
B |
B |
B |
B |
B |
B |
B |
A |
| Tufts (1959) |
B |
A |
A |
B |
B |
B |
B |
B |
B |
| Wilcox (1991) |
B |
B |
A |
B |
B |
B |
B |
B |
A |
| Key |
A: methods of randomisation explained |
A: assessors blind to group allocation at pre and post test |
A: baseline characteristics reported |
A: withdrawals accounted for |
A: missing values taken into account in analysis |
A: <.10 attrition |
A: intention to treat analysis used |
A: power calculation completed and sufficient participants recruited |
A: characteristics in main linguistic areas |
| |
B: methods fo randomisation not explained |
B: blinding not reported |
B: baseline characteristics not reported |
B: withdrawals not reported |
B: no missing values shown |
B: attrition not reported |
B: intention to treat analysis not reported |
B: power claculation not reported |
B: characteristics in main area of study |
| |
C: methods of randomisation inadequate |
C: assessors blind at pre‐test only |
C: baseline characteristics reported to be different |
C: withdrawals not accounted for |
C: missing values discounted in analysis |
C: >.10 attrition |
|
C: power calculation completed but insufficient participants recruited |
C: characteristics unclear |
| |
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