Definitions
Designs
Tests
100
The phenomenon or behavior that we want to explain or predict.
What is the Dependent Variable
100
The type of design where the IV is manipulated. Inferences of causation may be made.
What is an Experimental Design
100
A statistic that compares the tallies or counts of categorical responses between two (or more) independent groups. A statistic whose IVs and DVs are categorical.
What is Chi-square
200
The predictor or causal variable in the study
What is the Independent Variable
200
The type of design uses different participants in each condition
What is a Between-subjects design
200
A test used to evaluate the differences in means between two groups when the groups are paired in some way
What is a Correlated (paired-samples) t-test
300
The hypothesis that states that the differences in scores between conditions are due to the action of the independent variable. Accepted only if its probability exceeds a predetermined significance level.
What is the Alternative Hypothesis
300
A design that examines the relationship between two variables. Inferences of causation may not be made.
What is a Correlational Design
300
A test used to evaluate the differences in means between two groups when the groups are independent, or not related.
What is an Independent-samples t-test
400
A transformed score that designates how many standard deviation units the corresponding raw score is above or below the mean
What is a z score
400
The type of design that used the same subjects in each condition.
What is a Within-subjects Design
400
A test that allows for comparison of means between two or more groups.
What is One-way ANOVA
500
A statistic whose interpretation does not depend on the sample fitting any distribution parameters
What is a Nonparametric Statistic
500
The type of design collects data on subjects using the same measure on at least two occasions.
What is a Repeated Measure Design
500
A test that evaluates the effect of two independent variables and the interaction between them on a dependent variable.
What is Two-way ANOVA
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