inteligenta si rezultatele vieții Flashcards
What is intelligence?
Global capacity of the individual to act purposefully, to think rationally, and to deal effectively with his environment.
What is the difference between mediator and moderator?
Mediator - direct effects
Moderator - moderated effects
Are there other more important factors that predict success other than intelligence?
meta analysis looking at associations between intelligence, parental SES, academic performance and success
to see the predictive power of intelligence in comparison to other variables
RESULTS
Intelligence is a powerful predictor of success, but not a better predictor than parental SES or grades.
Moderator analysis showed that the ship between intelligence and success is dependent on the age of the sample
How could parental SES moderate the relationship between intelligence and success?
Lower SES households may experience higher levels of stress due to financial instability
Higher SES parents typically have greater financial resources, which can provide their children with access to better educational opportunities
Explain variance
The square of the correlation coefficient, r^2, represents the fraction of the variation in 1 variable that may be explained by the other variable
e.g.
r = .69 -> R^2 = .48
48% of the variance in weight is explained by variance in height
How much do intelligence test scores explain the differences in education, achievement, occupation and income
Intelligence test scores explain around 4-25% of the differences in education, achievement, occupation and income
How much do parental variables explain the differences in education, achievement, occupation and income
Parent variables (SES, parents education, occupation, income) explain similar amount of variance
Is there a link between IQ and longevity?
- At age 76, those with IQ of 97 are dead.
Those with IQ of 102 are alive. - meta analysis
Smarter people live longer
Why might people with higher IQ live longer?
Better informed
Avoid risks
Healthy lifestyle
Live longer
What is the link between intelligence and health behaviours?
About 1-2% of smoking at age 50 is explained by IQ at age 11.
What is the effect on smoking on IQ?
Smoking affects cognitive change detrimentally from age 11 to 80
IQ lowers
What is the association between intelligence and health outcomes?
Higher mental test scores were associated with lower depression scores, better general health and significantly lower odds of having 5 of the 9 diagnosed conditions.
With one SD increase of IQ, the risk of some conditions is lowered by about 20%
