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Table 6 Final version item fit statistics and point measure correlation of EOL-CDI (21 items) (N = 238)

From: Psychometric properties of the end-of-life care decision inventory (EOL-CDI): a mixed-methods study

EOL-CDI item

Logit

SE

Infit

Outfit

Point measure correlation

MnSq

Z

MnSq

Z

Observed

Expected

EOL-CDI item 1

 − 3.49

0.41

0.91

 − 0.18

1.20

0.50

0.36

0.35

EOL-CDI item 2

 − 2.04

0.25

1.16

0.94

1.33

0.91

0.36

0.46

EOL-CDI item 3

 − 2.74

0.31

0.87

 − 0.55

1.38

0.80

0.43

0.40

EOL-CDI item 9

 − 1.43

0.22

1.26

1.77

1.57

1.79

0.35

0.50

EOL-CDI item 10

 − 0.57

0.18

1.34

2.87

1.45

2.28

0.33

0.52

EOL-CDI item 12

 − 1.63

0.23

1.65

1.65

1.50

1.48

0.33

0.48

EOL-CDI item 14

0.96

0.15

1.28

4.34

1.48

3.81

0.29

0.48

EOL-CDI item 16

0.33

0.16

0.85

 − 2.02

0.78

 − 1.98

0.60

0.51

EOL-CDI item 17

 − 1.04

0.20

0.70

 − 2.62

0.58

 − 2.09

0.67

0.51

EOL-CDI item 18

1.08

0.15

0.99

 − 0.15

0.91

 − 0.81

0.49

0.48

EOL-CDI item 19

3.63

0.22

1.01

0.14

0.96

0.02

0.24

0.25

EOL-CDI item 20

1.32

0.15

0.95

 − 0.96

1.09

0.73

0.48

0.46

EOL-CDI item 21

2.98

0.18

1.04

0.42

1.25

0.89

0.26

0.31

EOL-CDI item 22

 − 0.38

0.18

0.73

 − 2.88

0.68

 − 2.18

0.67

0.52

EOL-CDI item 23

 − 0.29

0.17

0.89

 − 1.19

0.98

 − 0.07

0.58

0.52

EOL-CDI item 24

 − 0.17

0.17

0.97

 − 0.27

0.88

 − 0.78

0.55

0.52

EOL-CDI item 25

 − 0.81

0.19

0.84

 − 1.38

0.66

 − 1.85

0.62

0.52

EOL-CDI item 26

0.90

0.15

1.00

 − 0.04

0.97

 − 0.21

0.49

0.49

EOL-CDI item 27

1.52

0.15

1.01

0.73

1.04

0.35

0.42

0.44

EOL-CDI item 28

2.16

0.16

0.89

 − 1.63

0.75

 − 1.40

0.46

0.39

EOL-CDI item 29

 − 0.29

0.17

0.85

 − 1.61

0.88

 − 0.74

0.60

0.52

Mean ± SD

  

0.99 ± 0.17

 

1.06 ± 0.30

  

PCA of standardized residuals’ 1 factor eigen value = 2.04

  1. EOL-CDI, end-of-life care decision inventory; MnSq, mean-square residual; SE, standard error
  2. MnSq of outside range > 1.3 or < 0.6, and Z-value outside range > 2.0 or <  − 2.0