Toward a Definition of the Difficulty of a Personality Item
Psychological ReportsPublished 1 August 1973
Tim Rogers
Citations21
SJR quartileQ2
SJR score0.76
SNIP0.91
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TL;DR
Variance analyses indicated that the usual item-statistic approach (collapsing over Ss) results in the loss of considerable variance from the original item X persons data matrix.
Abstract
Convergence among several indices of personality-item difficulty was assessed. Controversiality, item response variance, response time, and difficulty ratings showed consistent convergence, while ambiguity did not. Variance analyses indicated that the usual item-statistic approach (collapsing over Ss) results in the loss of considerable variance from the original item X persons data matrix.
Keywords
PsychologyDecision Sciences
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