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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