L9 - Critical thinking Flashcards
What is a hypotheses?
Defines what you want to test
What measurement approach would you use for behaviour?
Observation
What measurement approach would you use for attitudes/ ideas?
Survey
What measurement approach would you use for determining cause?
Experiment
What is a causal hypothesis?
“If I change X, Y will change”
What is a predictive hypothesis?
“These groups respond differently”
When do you use non-equivalent control groups?
Has both experimental and control groups
Subjects aren’t randomly assigned
When is a mix factorial design with One non-manipulated variable appropriate?
More than one IV, one of which isn’t randomly assigned
When would you use a design without a control group?
*Interrupted Time Series Design: Compare same group over time before and after manipulation
*Repeated-Treatment Design: Baseline, treatment, withdrawal, treatment again
What is a cross-sectional study?
Different age groups at the same time –> risk of cohort effects
What is a longitudinal study?
Study of the same group over a long period of time
What is a cross-sequential design?
Multiple cohorts at multiple to separate effects
What is the purpose of a meta-analysis?
Combine results from multiple studies –> leads to a larger view of the topic, examining effect size vs significance
Why is a single-subject designs?
Practical when multi-subject designs aren’t possible?
What’s the advantages of single-subject design?
*Avoids distortion from group
means.
*Clinically significant effects.
*Practical and ethical flexibility.
