Test Scores and Norms Flashcards
What is the systematic observation of behaviour?
Summarize
Compare
Interpret (i.e. infer meaning)
Explain descriptive statistics.
Describing the characteristics of the sample data (e.g., mean, SD, rank order)
Explain inferential statistics.
Making estimation of the population through results derived from sample data (e.g., t-test, ANOVA)
What is raw score total?
Sum of all scores across all the items within a single test measure
What is norm referencing?
Comparing a participant’s score with a general score from the general relevant population
What is criterion referencing?
It is a cut-off score
What do you need to know for criterion-referencing?
Know all the possible behaviours with regards to your psychological construct
What is the purpose of score transformation?
Done to increase comparability and for norm referencing
What does Linear transformation entails?
It retains the order of score as well as the distance between scores, so if anything is moved, it moves together
List down an example of linear transformation
z-scores
What does non-linear transformaton entails?
The order is retained, but the distance is not; get varying distance between each score