Psychology - Research Methods Flashcards
Chi Squared
nominal data
independent measures
association (difference)
Mann Whitney U
ordinal data
independent measures
difference
Sign Test
nominal data
repeated measures
difference
Spearmans rho
ordinal data
correlation
Wilcoxon T
ordinal data
repeated measures
difference
Pearsons
interval data
correlation
Related t test
interval data
repeated measures (related)
difference
Unrelated T test
interval data
independent groups design
difference
nominal data
categories
ordinal data
ranks
interval data
time,temp weight, height
Type 1 error
A type I error (false-positive) occurs if an investigator rejects a null hypothesis that is actually true in the population
Type 2 error
A type II error (false-negative) occurs if the investigator fails to reject a null hypothesis that is actually false in the population.
Sign test Instructions
+ = better
- = worse
= - ignore
add together the + and - signs and use the smaller of the 2 numbers
explain if the result is significant by using critical values table
