Table 3. The QCD scores of elementary school students.

QCD	Case, % (n = 42)	Control, % (n = 42)	Effect Size	p value
Total	24.26 ± 11.83	28.69 ± 8.69	0.43	NS
Morning	6.00 ± 3.12	6.62 ± 3.12	0.20	NS
During school	3.31 ± 2.52	4.52 ± 2.33	0.50	p < 0.05
After school	3.55 ± 2.41	4.57 ± 2.50	0.42	NS
Evening	5.50 ± 3.48	6.00 ± 2.59	0.16	NS
Night	2.62 ± 2.67	2.83 ± 2.33	0.08	NS
Overall behavior	3.29 ± 1.99	4.14 ± 1.42	0.49	NS

Score ranges: QCD (Questionnaire: Children with Difficulties): 0-60 points.