34 Age differences in intelligence Flashcards Preview

2014 Personality and Intelligence > 34 Age differences in intelligence > Flashcards

Flashcards in 34 Age differences in intelligence Deck (10):
1

How are stability and change defined in intelligence testing?

Stability - consistency in the rank-order of people

Change - difference in the absolute level of a trait

2

Are intelligence scores stable over time?

Yeah, pretty much. r = .66 in the Scottish Mental Survey.

3

How do scores on the infant novel object habituation test correlate with IQ?

Children who take longer to grow bored of a novel object have lower IQs.

4

Is IQ stable among young children?

Actually, no, it's the exception. Because of rapid development before 6-8 years old, IQ at this age is less predictive of IQ later.

5

What explains the massive decrease of IQ across age groups in cross-sectional studies?

Cohort effects. In 1970 only 20% of people finished high school. Today it's 60%.

6

What is the size of the Flynn Effect on average?

3 IQ points per decade.

7

For which groups are cohort effects the largest?

There is evidence that cohort effects are larger for those who grew up without technology (born in 1920s and 1930s)

8

Does cross-sectional research overestimate or underestimate cognitive decline?

It overestimates cognitive decline.

9

How might longitudinal data underestimate cognitive decline?

- Because Pps get practice at tests
- Those you can follow up are likely to be high IQ
- Selective attrition - those who die more likely to be low IQ

10

What can old people offer cognitively to the workforce?

Domain-specific knowledge and expertise, which increase over the lifetime. Young people need raw reasoning because they don't know the answer through experience.

Decks in 2014 Personality and Intelligence Class (38):