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Table 2 Psychometric properties of the participants

From: Association of peripheral BDNF level with cognition, attention and behavior in preschool children

 

Favorable directiona

Minimum

Maximum

Mean (SD)

Boys

Girls

IQ

 FSIQ

86

124

106.31 (13.66)

107.40 (11.69)

 Verbal

80

127

105.31 (15.55)

105.67 (11.10)

 Motor

86

128

105.61 (12.85)

99.87 (28.06)

Computerized continuous performance test

Visual (T score)

 Omission error

40

135

72.61 (29.91)

60.73 (26.82)

 Commission error

40

117

69.46 (21.91)*

52.27 (9.76)*

Auditory (T score)

 Omission error

34

81

55.92 (14.73)

48.93 (11.16)

 Commission error

34

61

48.53 (7.03)

46.13 (8.45)

CCTT (T score)

 CCTT 1 time

18

65

35.46 (10.91)

36.67 (14.55)

 CCTT 2 time

40

143

85.08 (19.09)

80.93 (23.49)

 Inference index

40

67

51.23 (7.36)

52.87 (7.22)

Stroop (T score)

 Inference score

24

61

44.08 (7.79)

47.40 (9.93)

CBCL score (T score)

 Social withdrawal

18

100

47.46 (8.05)

44.80 (30.67)

 Somatic complaints

42

65

44.61 (6.66)

47.47 (7.35)

 Anxiety/depression

35

68

45.38 (9.07)

47.73 (10.63)

 Social problem

37

78

45.00 (8.95)

47.60 (10.38)

 Thought problem

45

58

45.92 (3.32)

47.47 (4.29)

 Attention problem

35

59

43.62 (7.92)

44.07 (7.79)

 Delinquent behavior

40

59

47.08 (6.20)

48.73 (6.42)

 Aggressive behavior

37

64

49.31 (6.76)

48.93 (7.96)

 Internalizing problems

33

71

44.38 (9.19)

46.73 (11.40)

 Externalizing problems

36

64

48.69 (6.75)

48.40 (8.04)

 Total behavior problems

30

71

45.38 (8.07)

47.80 (10.82)

ADHD rating scale

 Hyperactivity

0

10

4.92 (3.52)*

2.40 (2.80)*

 Inattention

0

13

4.00 (2.16)*

1.40 (2.29)*

 ARS total

0

23

8.61 (5.82)*

2.60 (2.56)*

  1. * P < 0.05
  2. aDirection in which a change in score indicates good function