Sequential plans are suggested as a basis for developing decision rules for accepting or rejecting instructional materials. The technique allows inferences to be drawn concerning the effectiveness of the instruction for the target population, from formative evaluation sample data. The procedure calls for explicit statements of the required level…

A model for sequencing tasks in the area of visual perception was developed. This paper reports an attempt to validate the structure of the model. The performance of 50 normal preschool children on a 47 item test was studied. The results obtained support the use of the model as a framework for developing visual perception tasks. (Author)