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psych quiz 2 - P.2
Psychology quiz 2 terms, correlation design and more
| Question | Answer |
|---|---|
| What is correlation design? | Examine how two variables are related |
| How can correlations vary? | Correlations vary from - 1 to +1 and can be positive, negative, and none (zero) |
| How are correlations depicted? | Depicted in a scatterplot |
| What are illusionary correlations? | Perception of a statistical association where none exist |
| What is correlation vs causation? | Just because two things are related, does not mean that one causes another. |
| What are three possible explanations for correlation vs causation? | A causes B, B causes A, C causes both A and B |
| What are experiments? | The only way to be certain if one thing is causally related to another is with an experimental design |
| What is an independent variable? | The variable researchers manipulate in an experiment to |
| What is a dependent variable? | The thing the researcher is measuring |
| What is random assignment? | Participants are assigned to different treatment groups on the basis of chance alone |
| What needs to happen before confident in experiment results? | Experiment must be repeated or replicated before complete confidence can be placed in conclusion |
| What makes a study an experiment? | Random assignment of participants groups |
| What is the experimental (test) group? | Receives the manipulation (3 cups of coffee) |
| What is the control group? | Does not receive manipulation (3 cups of decaf) |
| What is the manipulation of the independent variable? | The thing you think is the cause (caffeine in coffee (regular vs decaf)) |
| What is the manipulation of the dependent variable? | It measures if manipulation had an effect |
| What is the confound? | Makes independent variable effects uninterpretable (we had people play jenga at different times of the day (morning vs evenings)) |
| What are cause and effect? | Possible to infer with random assignment and manipulation of independent variables and experiments have high internal validity |
| What is the placebo effect? | Improvement resulting from the mere expectation of improvement |
| What is the nocebo effect? | Harm resulting from the mere expectation of harm |
Created by:
josie_d
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