This article takes as its point of departure a coefficient for gauging the reliability of composites based on a fitting of a logit model with normal prior to dichotomous items pertaining to social attitudes (abortion) and/or life feelings (alienation). The effect of item locations on that...

The logit latent trait model offers a promising means of constructing attitude scales in sociology. The adequacy of such scales depends on the appropriateness of the model on which they are based. This article shows that the standard goodness-of-fit tests, based on chi-square distributions, are...

Godfrey Thomson (1881-1955) was a leading figure in intelligence testing who made his name in that field first at Armstrong College, Newcastle, and then at the University of Edinburgh. In the course of his practical work he identified many theoretical problems which were essentially statistical...