TABLE 2

Scores on Academic Achievement Tests

GroupT0T1aT2b
Mean (SD)nMean (SD)nMean (SD)n
Reading
 Intervention80.73 (29.95) 243102.62 (28.89) 232125.34 (26.01) 181
 Control80.81 (31.29) 242103.45 (29.05) 238124.82 (30.93) 170
Spelling CAMS
 Intervention117.85 (7.40) 235126.86 (7.90) 221135.12 (8.72) 180
 Control118.84 (7.98) 232127.16 (9.09) 229133.49 (9.07) 167
Math speed
 Intervention38.82 (17.49) 24560.44 (22.51) 23283.81 (28.16) 181
 Control42.05 (18.70) 24361.01 (23.53) 23878.35 (26.59) 171
Math CAMS
 Intervention48.03 (19.16) 23469.58 (16.78) 22282.36 (15.85) 179
 Control53.94 (18.14) 23268.65 (17.63) 22882.83 (16.68) 162
  • a The children in the intervention group who were not retained in the study did not differ from the children in the control group who were not retained in the study (age, grade, gender, condition, and pretest scores).

  • b Of the children who were not retained in the study at the math CAMS test, there were significantly fewer third-grade children in the intervention group than the control group (χ2 = 5.31, P = .02). No other differences were found between the children in the intervention group who were not retained in the study and the children in the control group who were not retained in the study (age, grade, gender, condition, and pretest scores).