IQ (Psychology) Flashcards
Parameters for IQ
Less than 70 - Eligible for NHS support. Does not mean they have a learning difficulty.
70-79 - Borderline
85- 115 - Average
125+ - Superior
Factors influencing IQ
Socioeconomic status
Education
Injury
Poor nutrition
Drug Abuse
Associations with higher IQ
Less hospital admissions
Less harmful health behaviours
Academic success
What is the Flynn effect?
Increase in population intelligence by 3 points over the last decade
What happens to our IQ over our lifespan?
Peaks at around 25 years
Fluid intelligence (Abstract reasoning and speeded performance) decreases
Crystallised (acquired knowledge, such as verbal ability and social knowledge) peaks at 50 years
Classical intelligence?
Ability to adapt, learn, reason, memorise, rationalise, solve problems
IQ classically only tests classical intelligence
Emotional intelligence?
Ability to perceive reason, understand and manage own and other emotions
5 theories of IQ
Hereditary Genius Theory 1869 - Argued that creative and intellectual exceptionalism was hereditable
First to use questionnaires
Mental Age Theory 1900s- Looks at how a specific individual, at a specific age, performs intellectually compared to average intellectual performance for their age.
Set points that everyone should hit throughout their lifespan
General intelligence theory - intelligence is mental ability + special factors. However ‘g’ underlies all intelligence - if students perform well in a subject, generally they will perform well across the board.
Catell’s theory - Fluid (problem solving) and crystallised intelligence (ability to use acquired knowledge)
Multiple intelligence theory (most current) - Linguistic, spatial, musical, logical, body, intrapersonal, interpersonal.
Define IQ
Index of intelligence plotted on a standardised curve
Types of IQ test
Weshcler Adult Intelligence Scale, Wecshler Abbreviated Intelligence Scale - standard IQ tests for clinical practise
Raven’s progressive Matrix - Non verbal, progressively more difficult set of 60 matrices
NART - reading test, for premorbid intelligence ( previous to onset of Dementia or Alzheimer’s.
Dementia rating scale
MMSE - clinical assessment of cognitive ability, prediction of progression