Age Group

Total Scorea

17 - 39b

40 - 49c

Over 50d

M

SD

M

SD

M

SD

M

SD

p-value

Errors

P-Go

3.42

7.48

0.57

1.01

3.09

8.12

7.80

10.13

0.105*

R-No-Go (Commission Errors)

5.48

3.33

4.42

2.20

5.18

2.60

7.30

4.69

0.106

R-Go (Omission Errors)

0.40

0.77

0.28

0.61

0.36

0.67

0.60

1.07

0.622

P-No-Go

1.88

2.28

1.64

1.98

1.54

1.50

2.60

3.27

0.516

Percent

P-Go

97.32

5.84

99.55

0.79

97.58

6.35

93.95

7.91

0.105*

R-No-Go (Commission Errors)

82.85

10.42

86.16

6.90

83.80

8.12

77.18

14.66

0.106

R-Go (Omission Errors)

98.75

2.42

99.10

1.91

98.86

2.10

98.12

3.35

0.622

P-No-go

98.52

1.78

98.71

1.55

98.79

1.17

97.96

2.55

0.516

Reaction Times (ms)

P-Go

525.65

99.29

455.10

31.46

543.15

110.99

605.16

83.58

0.001*

R-No-Go (Commission Errors)

448.17

82.28

405.95

41.03

448.51

86.87

506.90

90.29

0.017

R-Go (Omission Errors)

547.15

75.45

501.22

32.76

547.75

68.70

610.79

83.24

0.003*

P-No-go

486.33

68.14

489.16

57.36

439.11

37.76

529.77

81.59

0.061

Total Accuracy (n˚)

308.8

10.07

313.07

4.19

309.81

10.36

301.70

12.38

0.035*

% Accuracy

96.48

3.13

97.78

1.24

96.81

3.23

94.28

3.86

0.037*

Errors (n˚)

11.20

10.07

6.92

4.19

10.18

10.36

18.30

12.38

0.035*

% Errors

3.51

3.13

2.21

1.24

3.18

3.23

5.71

3.86

0.037*