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Table 4 Rasch analysis of AREALD-30

From: Reliability and validity of Arabic Rapid Estimate of Adult Literacy in Dentistry (AREALD-30) in Saudi Arabia

Items

Item mean

Infit MNSQ

Infit ZSTD

Outfit MNSQ

Outfit ZSTD

Temporomandibular

0.34

1.08

0.5

1.34

0.6

Hypoplasia

0.36

0.78

-1.4

0.50

-0.2

Plaque

0.42

0.85

-1.0

1.37

0.6

Braces

0.49

1.37

2.30

1.52

0.80

Cellulitis

0.45

0.85

-1.0

0.82

0.0

Apicoectomy

0.49

1.18

1.0

1.14

0.4

Fluoride

0.63

0.74

-1.60

0.54

-1.0

Bruxism

0.66

0.71

-1.8

0.77

-0.3

Pulp

0.65

0.83

-0.9

1.36

0.8

Periodontal

0.62

0.86

-0.7

0.61

-0.8

Enamel

0.60

0.92

-0.3

0.71

-0.5

Restoration

0.71

0.64

-2.1

0.47

-1.3

Fistula

0.63

1.44

2.0

1.42

0.9

Sealant

0.72

1.25

1.2

1.20

0.5

Genetics

0.82

1.10

0.5

1.25

0.6

Incipient

0.81

0.76

-1.1

0.50

-0.9

Dentition

0.81

0.96

0.0

0.55

-0.7

Abscess

0.82

1.09

0.4

1.20

0.5

Malocclusion

0.80

1.13

0.5

0.62

-0.3

Denture

0.89

0.68

-1.2

0.36

-0.6

Gingiva

0.91

1.28

1.0

7.75

3.4

Hyperemia

0.87

0.69

-1.1

0.51

-0.2

Analgesia

0.84

1.11

0.4

0.73

0.1

Sugar

0.93

0.66

-1.0

0.22

-0.4

Smoking

0.94

0.93

0.0

0.33

0.0

Floss

0.93

1.15

0.4

5.25

1.8

Extraction

0.93

1.23

0.6

7.56

2.0

Halitosis

0.96

0.91

0.0

0.20

0.1

Caries

0.95

0.72

-0.4

0.27

0.5

Brush

0.98

1.16

0.4

9.00

2.7