Table 5 Within and between group comparisons in children’s neuropsychological test scores over five time points, controlling for age.

From: Randomized Controlled Trial comparing the effectiveness of structured-play (ENGAGE) and behavior management (TRIPLE P) in reducing problem behaviors in preschoolers

  Waitlist (WL) Baseline (BL) Post intervention (PI) 6month follow-up 12month follow-up Main effect Group Simple effect Time Multi. comp. WL v BL Multi. comp BL v PI Multi. comp. PI v 12moFU
M (SD) M (SD) M (SD) M (SD) M (SD) Chi-sq. Chi-sq. Z. (Hedge’s g) Z. (Hedge’s g) Z. (Hedge’s g)
Comprehension of instructions
  Engage 14.53
(2.87)
13.45
(2.29)
14.80
(2.12)
15.93
(2.18)
18.71
(2.31)
2.25
N.S
20.96*** −0.10
(0.42)
−2.02
(−0.06)
−3.58***
(−1.74)
  Triple P 14.60
(2.96)
14.42
(2.15)
16.42
(1.97)
17.43
(1.88)
19.75
(2.26)
122.69*** −3.03*
(0.07)
−3.46**
(−1.00)
−6.35***
(−1.55)
Visuo-motor precision errors
  Engage 127.80
(26.10)
146.00
(49.29)
120.41 (47.02) 103.52 (38.31) 96.39 (51.30) 3.85
N.S
10.65* −0.20
(−0.42)
1.96
(0.52)
−1.17
(0.48)
  Triple P 129.60
(55.14)
129.35
(54.46)
93.84 (48.62) 93.33
(36.40
69.87 (46.82) 16.61** 0.22
(0.01)
2.30
(0.68)
−1.84
(−0.06)
Statue
  Engage 14.31
(5.16)
15.75
(5.67)
19.10
(7.19)
15.66
(5.73)
17.75
(6.21)
0.10
N.S
4.85
N.S
0.08
(−0.26)
−0.93
(−0.51)
−1.87
(−0.20)
  Triple P 14.73
(7.77)
14.35
(7.06)
17.35
(7.14)
16.80
(6.09)
21.13
(6.20)
6.83
N.S
−1.17
(0.05)
−1.01
(−0.42)
−1.64
(−0.56)
HTKS
  Engage 7.71
(8.17)
7.96
(6.87)
8.89
(7.19)
14.48 (9.86) 24.75 (10.65) 1.10
N.S
22.50*** −2.27
(−0.03)
0.27
(−0.13)
4.38***
(−1.72)
  Triple P 6.80
(11.15)
11.71
(9.87)
11.97
(9.06)
18.66 (10.22) 26.48 (14.45) 13.11** −2.45
(−0.47)
1.36
(−0.03)
−2.74***
(−1.19)
  1. *p < 0.05; **p < 0.01; ***p < 0.001.
  2. ENGAGE: WL n = 15; BL n = 29; PI n = 29; 12mo FU n = 2.
  3. Triple P: WL n = 15; BL n = 31; PI n = 31; 12mo FU n = 31.