The uniformity of the correlations between WISC vocabulary scores and those on the final list of forty items suggests that this Religious Language Comprehension Test is a very stable measure. For any vocabulary test, the method of word selection is very important. The words were presented to the subjects, in individual interviews, and they were asked for explanations as is done in, for example, the vocabulary sub-tests of the Wechsler Intelligence Scale for Children and the Stanford-Binet Intelligence Scale. On completion of the scaling procedure, twenty items were selected from the ‘quotations’ list and twenty from the ‘words’ list so that the entire range of scale values was evenly covered and items of low discriminative power were excluded. It would seem that progression towards a standardized test of religious language comprehension is indeed a realistic aim. After much consideration, it was decided to adopt a dichotomous scoring method, a decision which demands some comment and illustration.