IQ: RIP

Question 1

IQ is a

Answer 1

composite or average of many test scores

Question 2

Cognitive abilities involved in WAIS subtests are fairly ___ and do not have a

Answer 2

dissimilar, and do not have a systematic neuropsych or neuronaatomic relationship to each other

Question 3

Combining scores from multiple tests results in

Answer 3

loss of data and the average may not accurately reflect any of the individual test performances

Question 4

Averages can

Answer 4

obscure areas and patterns of cog deficit

Question 5

VIQ-PIQ

Answer 5

In general, left brain damage results in lower VIQ
-but VIQ may be unaffected by left injury

Decreased PIQ most pronounced after right injury

• but because of the timed nature of many tests it can be affected by bilateral or diffuse injury
• left parietal damage can result in construction deficits which affect PIQ
• perf. tests are novel and more sensitive to brain injury anywhere because of reduced processing efficiency
• In some studies significant changes in IQ are not even found after brain injury
• IQ scores have little if any use in neuropsych assessment