The author discusses structural weakness of the psychometric paradigm, citing that psychometricians claim to be able to measure psychological attributes, presuming these attributes to be quantitative. The author contends, however, that evidence does not support the quantitative view, rendering such claims premature. This article is based upon…

Pathology of science occurs when the normal processes of scientific investigation break down and a hypothesis is accepted as true within the mainstream of a discipline without a serious attempt being made to test it and without any recognition that this is happening. It is argued that this has happened in psychometrics: The hypothesis upon which…

In the following, I confine my comments mainly to the issue of invariance in relation to Rasch's model for dichotomous, ability test items. "It is senseless to seek in the logical process of mathematical elaboration a psychologically significant precision that was not present in the psychological setting of the problem." (Boring, 1920)