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Table 6 Ordered item locations, fit residuals and probabilities for the language and cognitive development domain

From: The Early Development Instrument: an evaluation of its five domains using Rasch analysis

Item

Item description

Location

SE

Fit residual

Chi square

Probability

1

handle a book

−3.86

0.35

−1.34

3.12

0.874

20

sort by common characteristics

−2.25

0.19

−0.40

3.50

0.835

21

use one-to-one correspondence

−1.71

0.16

−2.53

9.77

0.202

2

interested in books

−1.64

0.16

−2.29

5.40

0.611

25

recognise shapes

−1.21

0.14

0.54

7.89

0.343

19

interested in number games

−0.81

0.13

−0.34

8.43

0.296

18

interested in maths

−0.78

0.13

−3.95

19.67

0.006

5

attach sounds to letters

−0.63

0.12

−1.41

4.35

0.738

4

identify 10 letters

−0.62

0.12

−2.48

7.59

0.370

12

aware of writing direction

−0.62

0.12

−1.30

5.04

0.655

11

experiment with writing

−0.62

0.12

1.23

34.05

0.000

14

writing his/her name

−0.50

0.12

−1.51

9.32

0.231

3

interested in reading

−0.45

0.12

−3.29

9.13

0.243

26

understands time

−0.40

0.12

−0.54

7.14

0.414

24

say which is bigger than 2

−0.39

0.12

−2.63

7.65

0.364

7

group reading activities

0.06

0.11

−1.64

15.09

0.035

8

read simple words

0.24

0.10

−5.14

29.66

0.000

17

remember things easily

0.74

0.09

−2.53

8.60

0.282

23

recognise 1–10

0.77

0.09

−1.96

13.00

0.072

15

write simple words

0.84

0.09

−4.97

30.98

0.000

6

awareness of rhyming

0.98

0.09

−3.01

23.35

0.001

10

read simple sentences

1.58

0.09

−5.67

38.08

0.000

22

count to 20

1.95

0.08

−0.07

13.50

0.061

13

writing voluntarily

1.97

0.08

−1.02

17.88

0.013

16

write simple sentences

2.51

0.08

−0.09

22.20

0.002

9

read complex words

4.86

0.10

−0.04

28.56

0.000