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Table 4 Summary of results of Rasch analysis of sustainment within the inner context measure

From: Provider REport of Sustainment Scale (PRESS): development and validation of a brief measure of inner context sustainment

Analysis

Overall model fit

Item fit residual mean (SD)

Person fit residual mean (SD)

PSI [a]

% Sig. t tests

1. Items 1, 2, 3

χ2 = 19.441, df = 12, p = 0.078

0.766

1.458

0.826

2.47%

  1. SD standard deviation, χ2 chi-square, df degrees of freedom, p probability, PSI Person Separation Index
  2. [a] PSI with extremes included (0.8445 without extremes)
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Implementation Science

ISSN: 1748-5908