Two causal models of career development differing in inclusion or noninclusion of variables unique to the experience of the hearing impaired were compared for their ability to explain variance in career maturity, with data from 71 hearing-impaired adolescents. Results suggest neither model is more powerful in explaining career maturity variance.…

The Kuder Richardson-20 Formula is shown to be a special case, where each examinee is given sufficient time to answer each item, of a more general formula where each examinee may not be allowed the necessary time. The formula is extended to allow two scores, knowledge and speed, to be extracted from each examinees test score. Using a sample of 82…