The procedural deficit hypothesis claims that impaired procedural learning is a causal risk factor for developmental dyslexia and developmental language disorder. We investigated the relationships between measures of basic cognitive processes (declarative learning, procedural learning and attention) and measures of attainment (reading, grammar and…

A strategy for investigating which individual difference variables have transfer value at various stages of acquiring effective reading skills was discussed. Definitions of basic human abilities, including intrinsic and extrinsic individual differences were reviewed. In examining the required subskills in the reading process, it was pointed out…

The research described in this report is the first part of an attempt to study the development of both overall reading ability and verbal encoding efficiency in an effort to see how the two are related. The report proposes a theory of prerequisite or hierarchical relationships and suggests that there may be differences between performance of a…