Research Article

Is Organizing Knowledge Effective in Primary Education?

Table 1

Descriptive statistics and differences between the two groups (EG and CG) in the posttest.

PretestPosttest
EG (n = 38)CG (n = 24)>EG (n = 38)>CG (n = 24)>
M (SD)M (SD)M (SD)M (SD)F (1, 60)

Peabody82.26 (17.99)78.91 (18.37)87.60 (20.90)77.45 (19.01)
Auditory Comprehension32.39 (11.95)31.04 (12.76)35.97 (12.55)30.12 (12.90)3.120.05
Visual Comprehension13.52 (3.81)12.87 (5.39)15.73 (4.55)12.62 (5.28)6.060.09
Visual Memory8.15 (3.62)7.58 (4.05)9.71 (3.95)7.29 (4.26)5.180.07
Auditory Association17.60 (6.88)16.95 (6.82)20.36 (7.30)16.50 (8.54)3.610.05
Auditory Memory7.78 (2.50)7.66 (3.54)9.76 (3.72)7.50 (3.34)5.860.08
Visual Association16.94 (5.93)17.00 (7.25)21.92 (6.98)16.54 (7.71)8.310.12
Visual Integration24.00 (5.25)24.00 (7.34)29.05 (6.99)23.87 (7.43)7.680.11
Verbal Expression32.60 (8.97)33.75 (12.41)44.73 (12.69)31.95 (12.82)14.790.19
Grammatical Integration16.52 (5.88)15.95 (6.10)22.42 (5.66)14.95 (6.57)22.540.27
Motor Expression21.02 (4.54)20.45 (5.69)22.97 (5.49)20.62 (5.45)2.690.04
Auditory Integration13.92 (5.81)13.70 (5.60)15.94 (6.19)13.50 (6.06)2.330.03

Note. M = Mean, SD = Standard Deviation, EG = Experimental Group, CG = Control Group. Following the effect sizes Cohen [33] criterion, the effect is small when  < 0.01, average when  ≥ 0.59, and large when  ≥ 1.38. , , .