Table 2 Slope and location parameters of the estimated IRT models for memory and attention

1

1.31

-1.6

2

1.95

-0.73

3

1.51

-0.96

4

1.80

-1.54

5

1.77

-1.2

6

1.74

-1.83

7

2.06

-1.08

8

2.24

-1.36

9

2.41

-1.07

10

2.28

-1.36

11

1.81

-0.72

12

1.43

-1.41

13

2.3

-1.39

14

2.54

-1.38

15

2.47

-1.23

16

1.84

-1.06

17

3.98

-1.42

18

3.29

-0.85

19

3.83

-0.85

20

1.35

-1.32

21

1.59

-1.55

22

2.76

-1.24

23

0.99

-2.22

24

2.65

-0.94

25

3.15

-1.21

26

1.68

-2.21

27

3.09

-1.07

28

3.17

-1.18

29

2.85

-1.33

30

2.52

-1.16

31

1.72

-1.1

32

2.0

-1.52

33

2.5

-1.54

34

2.93

-1.18

35

2.04

-1.44

36

4.29

-1.38

37

2.93

-1.38

38

2.13

-1.03

39

2.64

-1.37

40

1.79

-1.41

41

1.69

-1.71

42

2.45

-1.35

43

1.38

-1.56

44

3.53

-1.38