Chapter 3 PERSONALITY ASSESSMENT Flashcards
Effect size, replicability and open science
Factor analysis
Identifies groups of things - which can be anything from songs to test items - that seem to have something in common. The property that ties these things together is called a factor.
Factor analysis has been used to not only
Construct tests but to decide how many fundamental traits exist - how many are truly essential.
Empirical method
A strategy of test construction that allows reality to speak for itself
1st step of empirical method
Gather lots of items
2nd step of empirical method
You need a sample of participants who have already been divided into the groups you are interested in ie happy priests vs miserable or depressed vs normal
3rd step of empirical method
Administer your test to participants
4th step of empirical method
Compare answers given by different groups, then cross-validate to predict behaviour, diagnosis or put people into a category.
The rational method
Come up with items directly, obviously and rationally depending on what you wish to measure
Strict rules about how the term significant can be used. A significant result is a result that would be unlikely to appear
If everything were due only to chance