Table 1 Factor Analysis of Memory, Attention, and Executive Function Items

Card-Matching

.78

.67

Self-Ordered Pointing

.73

.42

.72

Knox Cube

.72

.32

.63

Visual-Attention, accuracy

.88

.86

Visual-Attention, speed

.75

−.42

.79

Which Car

.70

.58

Trail-Making, accuracy

.71

.33

.62

Trail-Making, B-A

.31

.56

.42

Sea-Land Verbal-Switch, accuracy

.82

.73

Sea-Land Verbal-Switch, speed

.79

.64

KICA-EF

.67

.52

Variance explained after rotation

31.71%

21.99%

11.60%