Testing Children Flashcards
The WISC
Measures children aged 6-0 to 16-11. Identical subtests and scoring as the WAIS-IV, but easier items. Can compare scores on the WISC to scores on the WAIS-IV and WPPSI.
Psychometrics of the WISC
Large standardisation sample, Australian norms, diagnostic reliability for FSIQ, high correlations with other Weschler scales.
WPPSI
Measures two age bands (2-6 to 3-11 and 4-0 to 7-3). The older age group has identical subtests to the WAIS-IV and WISC, only easier. The younger group has 2 verbal and 2 non-verbal subtests.
Psychometrics of the WPPSI
Same scoring as the WISC. Can compare raw score to an age standard score (eg performing at the level of a X year old). Diagnostic validity for both groups and validated using factor analysis, correlations and special populations.
SBI-5
Consists of 15 subtests that cover ages 2 to 85 in a single test. Developed from the Binet-Simon scales. Not all subtests are used for all age groups and only 6 of the 15 have long term stability.
Improvements to the SBI-5
Uses a hybrid of point scale and age scores. “routing test” can be used to estimate a level where the test should begin from. Equal weighting to verbal and non-verbal items. Raw score is converted to a standard score (originally SD= 16). Greater discrimination between high and low scores.
Psychometrics of SBI-5
Good standardisation, diagnostic reliability. No validity evidence as yet, but the SBI-IV validity was high so should be similar.
Criticisms of the SBI-5
No evidence that indices fit together, much longer to administer that a Weschler test. Should only be used if a Weschler has been used in the last 12 months.
KABC-II
Theoretical test used for children aged 3 to 10. 5 scales with a combined total of 18 subtests. Index scores are produced for mental processing, fluid-crystallised and non-verbal.
Psychometrics of KABC-II
Not a randomised standardisation sample. Reliability is diagnostic for mental processing and fluid-crystallised indices, but not the non-verbal index. Tends to underestimate gifted children’s ability but shows less differences between black and white children.
Criticisms of KABC-II
Poor predictive validity, test doesn’t match the theory, theory is outdated and inaccurate and there is an imbalance between verbal and non-verbal items.
Raven’s Progressive Matrices
Test of non-verbal reasoning. Three versions (standard, coloured and advanced). Good for those with limited English or a disability as a measure of non-verbal reasoning, but is not an IQ test.
