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Table 4 Backwards step-wise removal of items violating IIO

From: The Patient Assessment of Chronic Illness Care produces measurements along a single dimension: results from a Mokken analysis

 

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

PACIC1

4

3

2

1

1

0

0

0

PACIC2

2

2

1

0

0

0

0

0

PACIC3

2

2

2

2

NA

NA

NA

NA

PACIC4

2

1

0

0

0

0

0

0

PACIC5

0

0

0

0

0

0

0

0

PACIC6

0

0

0

0

0

0

0

0

PACIC7

1

1

1

1

1

1

1

0

PACIC8

1

1

1

1

0

0

0

0

PACIC9

0

0

0

0

0

0

0

0

PACIC10

1

1

1

1

1

1

NA

NA

PACIC11

2

2

1

0

0

0

0

0

PACIC12

0

0

0

0

0

0

0

0

PACIC13

6

5

NA

NA

NA

NA

NA

NA

PACIC14

5

4

4

NA

NA

NA

NA

NA

PACIC15

2

2

2

2

1

1

1

NA

PACIC16

1

0

0

0

0

0

0

0

PACIC17

0

0

0

0

0

0

0

0

PACIC18

6

NA

NA

NA

NA

NA

NA

NA

PACIC19

3

3

2

1

1

NA

NA

NA

PACIC20

2

1

1

1

1

1

0

0

  1. NA indicates that item was removed from the scale. Numbers represent the number of unidimensional scales present in the dataset, starting at 0 and rising in positive integers