Week 9: Assessment of Intelligence PDF

lOMoARcPSD|5194257 Week 9: The Assessment of Intelligence Group IQ tests Multidimensional Aptitude Battery • Take individual tests into paper and pencil test to a group. • Two parts → 5 verbal items and 5 performance items, timed test (7 minutes) • Performance scale are harder to do • Verbal items...

lOMoARcPSD|5194257 Week 9: The Assessment of Intelligence Group IQ tests Multidimensional Aptitude Battery • Take individual tests into paper and pencil test to a group. • Two parts → 5 verbal items and 5 performance items, timed test (7 minutes) • Performance scale are harder to do • Verbal items had some good correlations ACER WQ – Qualitative Reasoning Test • 20 minutes for 40 questions WL- Linguistic Reasoning Test • 15 minutes • Verbal reasoning Downloaded by Jackson Pullar ([email protected]) lOMoARcPSD|5194257 Ravens Progressive Matrices 2 • Find a way of reducing need for verbal instructions, requirement for acculturated response for a group administered test. • Gf has the strongest correlation • 4 versions: Colour progressed (pre-school) Standard Matrices (10-89 average IQ) Advanced/progressed Matrices (Adults High IQ 11-40) Plus, matrices Culture loaded vs Culture Reduced Tests Culture Loaded “Gc” (Crystallised Intelligence) • • • • • • Pen and paper tests Reading required Written responses Speeded tests Verbal content Recall of past learned information Culture Reduced “Gf” (Fluid Intelligence) • • • • • • Performance tests Purely pictorial Oral responses Power tests Non-verbal content Solving novel problems. Downloaded by Jackson Pullar ([email protected]) lOMoARcPSD|5194257 Wechsler Intelligence Scales • Most common used individual IQ tests • Doesn’t measure visual perception and auditory perception • Every student starts on the same level (e.g. 10-year-old regardless of intellectual ability will be administered the same test, and will have to work their way up) 1. Wechsler scale for preschool and primary Intelligence - WPPSI- IV (OLDEST) - 4-7.7 year olds 2. Wechsler Intelligence Scale for Children - WISC- V - 6.5 – 16.5 year olds 3. Wechsler Intelligence Scale for Adults - WAIS – IV (NEWEST) - 16 – 89 years • If the child is average or above average always issue the test above. • If child is referred for being worrying child, then issue test below. • If child has taken a test in the last 2 years, can’t be issued the same test again Subtests of the WAIS-IV Verbal comprehension (Gc → Crystallised ability) • Vocabulary: what does ship mean? • Similarities: how are a pear and pomegranate alike? Information: who is ghengis khan • Comprehension: why do we wash clothes? Perceptual Organisation (Gf → Fluid ability) Matrix reasoning • Visual puzzles • Black design • (picture completion) Working Memory • Arithmetic: if you have 3 books and I give away 1, how many are left? • Digit span: repeating lists of numbers forward and backwards (how much information they can store) • Letter-number sequencing: remembering sequences of letters and numbers in alphabetical and numerical order. (hardest) Processing Speed • Symbol search • Digit symbol • (Cancellation) supplementary and does not need to be administered. Factorial Models of the WAIS IV • 2 factorial models of the WAIS – IV have been proposed so far: A traditional 4 factor model and a 5factor model based on the Carrol Model of IQ (CHC) Four factor model 1. Verbal comprehension 2. Perceptual reasoning 3. Working memory 4. Processing speed Downloaded by Jackson Pullar ([email protected]) lOMoARcPSD|5194257 Five Factor Model 1. Fluid Reasoning (Gf) 2. Crystallised Intelligence (Gc) 3. Visual Processing (Gv) 4. Processing Speed (Gs) 5. Short term Memory (Gsm) • Normative data was reanalysed with respect to the CHC model and Five factors extracted. Perceptual reasoning split into 2 factors (Gf and Gv). • Otherwise the other factors are the same as the traditional model. Matrix Reasoning: Perceptual Organisation • Version of the Raven matrices • Strongest of the Gf tasks. Downloaded by Jackson Pullar ([email protected]) lOMoARcPSD|5194257 What do IQ test scores mean? • Most scores fall in 2 S.D. Stanford Binet V • The alternative IQ test to the Weschler scales • This test is used if Weschler test was tested in the last 2 years, as tests cannot be repeated. • One test covers 2-89 year olds. • Students are administered tests depending on ability level, not age level. Produces an adaptive test formats. The Stanford Binet V assesses 5 factors which can be related to Carrols model in the following way: • Fluid reasoning: Gf → Fluid intelligence • Knowledge: Gc → Crystallised Intelligence (verbal) • Quantitative Reasoning: Gc → Crystallised Intelligence (numerical) • Visuo-Spatial Reasoning: Gv → Visual Perception • Working memory: Gsm → Short Term Memory - None of the tests measure more than 4/8 broad abilities in tier 2 of Carrolls model. Only the Woodcock Johnston III measures all 8 but is not used in Australia. Subtests of the Stanford Binet V • Not every test is administered to every client – subtests are age appropriate • Level 1 is for pre-schoolers and level 6 are the tasks differentiating the gifted from the very gifted Level 5: (average adult) NON-VERBAL • Object series/matrices • Picture absurdities • Quantitative reasoning • Form patterns • Working memory VERBAL • Knowledge/vocabulary • Verbal analogies • Quantitative reasoning • Position and direction • Last word (remember the last words in the sentences) Downloaded by Jackson Pullar ([email protected])