Table 2 Significant T test for independent groups according to DSMIV dementia (N = 159)

Semantic fluency

15.53

5.39

8.58

4.61

8.13

0.000

VL total

18.74

5.80

12.61

4.57

6.72

0.000

VL total easy

14.81

3.13

11.70

3.89

5.32

0.000

VL total hard

3.93

3.46

0.92

1.12

6.33

0.000

VL 1^st trial total

5.06

2.01

3.45

1.80

4.89

0.000

VL 1^st trial easy

4.27

1.31

3.34

1.64

3.77

0.000

VL 1^st trial hard

0.79

1.03

0.11

0.31

4.80

0.000

VL 2^nd trial total

6.61

2.07

4.36

1.73

6.81

0.000

VL 2^nd trial easy

5.17

1.16

4.07

1.42

5.07

0.000

VL 2^nd trial hard

1.44

1.25

0.29

0.46

6.68

0.000

VL 3^rd total

7.08

2.16

4.80

1.86

6.52

0.000

VL 3^rd trial easy

5.38

0.94

4.32

1.55

5.12

0.000

VL 3^rd trial hard

1.70

1.47

0.48

0.63

5.86

0.000

DI total

7.06

2.12

4.68

1.85

6.92

0.000

DI easy

5.32

1.04

4.29

1.63

4.71

0.000

DI hard

1.73

1.43

0.43

0.66

6.42

0.000

DR total

7.05

2.31

4.17

2.38

7.12

0.000

DR easy

5.20

1.08

3.82

2.06

5.27

0.000

DR hard

1.84

1.55

0.35

0.62

6.72

0.000

Word recognition

8.74

0.58

7.69

1.74

5.18

0.000

WRNP

0.23

0.54

1.65

2.80

-4.68

0.000

BG copy

4.03

1.18

3.53

1.50

2.26

0.000

BG recall

3.37

1.71

2.37

1.85

3.28

0.000

Set shifting lines

7.98

2.04

5.50

3.21

5.66

0.000

Set shifting time

56.98

22.77

99.62

58.05

6.15

0.000

DS forward

6.14

1.22

5.64

1.38

2.29

0.024

DS backward

3.57

1.63

3.34

1.47

0.85

0.397

Semanticspherical

5.16

2.31

2.94

2.16

4.87

0.000

Lexical fluency

5.93

3.75

3.91

2.16

3.59

0.000

CN total

11.48

1.13

9.95

3.41

4.20

0.000

CN correct

10.65

1.48

8.78

3.97

4.14

0.000

CN stimulus cue

0.85

0.96

1.25

2.19

-1.55

0.123

CN phonemic cue

0.14

0.35

0.89

1.49

-4.60

0.000

Abstraction

1.07

0.25

1.22

0.42

-2.68

0.008

Judgment

1.0

0.00

1.08

0.28

-2.90

0.004