Psych Lab Exam Study Guide

Psych Lab Exam Study Guide - Psych Lab Exam Study Guide: 1....

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Psych Lab Exam Study Guide: 1. Independent variable: variable that is being manipulated 2. Dependent variable: what’s being measured; results 3. Experimental group: the group that’s experiencing some level of the independent variable- the one being manipulated 4. Control group: group not being manipulated- used as comparison to measure dependent variable 4. Categorical variables (nominal variables)- variable that has 2 or more categories- none is better than the other 5. Ex. Of categorical variables- favorite color, gender- need to assign a value to compare 6. Quantitative variables- can be naturally measured; have naturally occurring meaning 7. Ex. of quantitative valuables- height, reaction time, GPA 8. What do descriptive statistics do?- summarizes the data- doesn’t make conclusions 9. 2 types, and what they do: a. measures of central tendency-measures around the center: mean, median, mode b. measures of variability-measures statistical significance: standard deviation and range a. mean (average) b. mode (most repeated) c. median (middle # or avg of 2 middle numbers) d. standard deviation- the square root of the avg squared deviations around the mean (know how to calculate this) e. range: max-min 12. inferential statistics- shows significance- can draw conclusions and
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Psych Lab Exam Study Guide - Psych Lab Exam Study Guide: 1....

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