Language and thought L8 Flashcards
What is the correlation coefficient?
- r, measures the magnitude of the relationship between two variables
- ranges from -1.00 and +1.00
What does an r value of O mean?
No relation between two variables
What does a positive value of r mean?
As one variable increases the other variable will also increase
What does a negative value of r mean?
As one variable increases the other variable will decrease
Is correlation and causation the same?
No
What are the components of Spearman’s two-factor theory?
- g (general) factor
- s (specific) factor
In spearman’s two factor theory what is g?
- A general mental energy that underlies (drives) performance on all intelligence subtests
- This varies between people
In spearman’s two factor theory what is s?
-Specific to type of task (computation, vocabulary, digit
span)
-There is a cluster of skills that people generally have a strength in so these tasks are more strongly correlated
How do G and S fit into standard measure of intelligence?
G= Full scale IQ across all tasks S= a specific cluster e.g. verbal IQ or performance IQ
What are some alternative forms of G, who came up with this idea?
- Cattell & Horn
- Fluid and crystalized intelligence
What is fluid intelligence?
Ability to learn, perceive relationships, deal with new
problems
What is crystalized intelligence?
Knowledge acquired over time from culture/ experience e.g. vocabulary size
How are the two forms of g effected with age?
-Fluid intelligence: stops increasing and begins to
decline after adolescence
-Crystalized intelligence: continues to increase with age
How well does an IQ test explain how you will do in a job?
- r= .3 to .5 (moderate correlation)
- r squared = the percentage of variance predicted from one measure by another
- Therefore, IQ only accounts for 25% of variation in job performance
- For other 75% need to look at other factors
Is creativity highly correlated with IQ?
No