Applications

• Outline Weschler Intelligence Scale

  • Ages 6-16 (adult version exists)
  • Intelligence is multifaceted and test measures 5 main forms of intellectual functioning and each measure is a primary index e.g. verbal comprehension that is assessed by 2 subjects
  • Trained testers administer the test face to face with individual children and it can last from 15 minutes to 3 hours
  • Produces separate scores for aspects of intellectual functioning & overall score measure of general ability called full scale IQ
• Outline Raven’s Standard Progressive Matrices

  • Children
  • Non verbal - less culture bias as not on language
  • Assess fluid intelligence and ability to identify meaningful patterns in complex info
  • 60 items into 5 sets with 12 items each that are sequences of geometrical patterns and have to select appropriate pattern that is missing
  • Becomes increasingly difficult
  • Untimed & produces single raw score converted to standard score & IQ can be interpreted in context of wider population
• Outline Raven’s Advanced Progressive Matrices

  • Adolescents and adults
  • Non verbal - less culture bias as not on language
  • Assess fluid intelligence and ability to identify meaningful patterns in complex info
  • 48 items of choosing appropriate pattern that is missing from sequences of geometrical patterns
  • Becomes increasingly difficult
  • Untimed & produces singe raw score converted to standard score & IQ can be interpreted in context of wider population
• Outline Raven’s Colour Progressive Matrices

  • Children aged 4-7
  • Some children who do it have mental or physical disorders
  • Asses 36 items in colour or in black & white
  • Untimed & produces single raw score converted to standard score & IQ can be interpreted in context of wider population
• Raven’s Progressive Matrices - outline Goodenough Harris Drawing Test

  • Students draw man, woman and child and analyse the features like limbs and absence of details to give an estimate of intelligence
• What is the usefulness and effectiveness of Weschler Intelligence Scale?

  • Not culturally relative as not considered culturally fair as depends on language skills and may underestimate intelligence of people from cultures that value non verbal skills over verbal ones
  • Watkins - reported internal reliability (test-retest) of it is 0.96 so it is reliable
  • High construct validity as many subscales measuring specific intellectual abilities
• What is the usefulness and effectiveness of Raven’s Progressive Matrices?

  • Requires no specialist materials so easy to administer
  • No movement so can be used if individual has physical disabilities
  • Not culturally biased as no language so it is ideal for cross cultural research
  • Highly reliable and valid so quicker to administer
  • Standard (SPM) shows split half reliability of 0.9 and test-retest of 0.8
  • Training has to be extensive as simplicity leads to more subjective interpretation if not trained properly