Developmental versus difference theories of mental retardation and the problem of motivation

Am J Ment Defic. 1969 Jan;73(4):536-56.
No abstract available

MeSH terms

  • Child
  • Child Development
  • Cognition*
  • Humans
  • Intellectual Disability / etiology*
  • Intellectual Disability / genetics
  • Intelligence
  • Intelligence Tests
  • Motivation*
  • Psychological Theory
  • Time Factors