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Table 2 DIF statistics for the 8-item skin self-examination attitude scale

From: Evaluation of a skin self examination attitude scale using an item response theory model approach

 

Mantel1

LORZ2

COX Z2

SSE_1

0.870

0.954

0.931

SSE_3

0.268

0.524

0.519

SSE_4

0.719

-0.842

-0.849

SSE_5

0.177

-0.422

-0.419

SSE_6

0.238

-0.485

-0.491

SSE_8

0.063

0.253

0.250

SSE_9

0.814

-0.904

-0.903

SSE_10

1.540

1.238

1.240

  1. 1Critical values of this statistic are 3.84 for a Type I error rate of 0.05.
  2. 2A value greater than 2.0 or less than –2.0 may be considered evidence of the presence of DIF.
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Health and Quality of Life Outcomes

ISSN: 1477-7525

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