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26 Cards in this Set
- Front
- Back
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Self-Selected Sample |
Volunteers (easy to get, but is less diverse) |
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Haphazard Sample |
People off the street (hard to re-create, less diverse, easy to get) |
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Opportunity Sample |
A group that already exists (like a class) |
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Random Sample |
Every person in pop. has equal chance of being selected |
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Stratified Sample |
Random sample broken down by variables. Every sub-group has a chance. |
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Snowball Sample |
People are recommended by others (ex. studies in the drug user community) |
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Crowdsourcing |
Hiring volunteers all over globe |
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True Experiment |
Change an IV, Measure DV, Control, Random Allocation to conditions |
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Quasi Experiment |
Does not manipulate IV (ex. age, culture, gender), Not randomly allocated, No control |
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Natural Experiment |
Psych. Study something beyond their control |
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Correlation |
Extant to which two variables are related |
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Positive (Direct) Correlation |
X goes up, Y goes up |
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Negative (Indirect) Correlation |
X goes up, Y goes down |
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Bidirectional Ambiguity |
Can't tell if X causes Y, Y causes X, or coincidence |
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T in TEACUP |
Testable (Is the theory?) |
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E in TEACUP |
Evidence (Is it good? Can it be replicated?) |
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A in TEACUP |
Application (Can it be applied to different situations?) |
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C in TEACUP |
Clearly defined variables |
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U in TEACUP |
Unbiased (esp. gender or culture) |
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P in TEACUP |
Predicts behaviour |
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Independent Samples Design |
Each group gets a different treatment |
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Repeated Measures Design |
Each group gets both treatments |
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Critical Value |
Outside realm of chance |
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p≤0.05 |
Reject null hypothesis |
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p >0.05 |
Retain null hypothesis |
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Artificiality |
Degree of control (?) |
