Research Methods Flashcards
(42 cards)
Produces change in dependent variable
Independent variable
Provides a full picture of one individual or a small group
Case study
Carefully controlled method of research
Experiment
Gets none of independent variable
Control group
Expresses relationship between two variables
Hypothesis
Observe participants in natural habitat
Naturalistic observation
Ask people to fill out surveys
Survey method
Aims to explain some phenomenon
Theory
Strength of a correlation
Correlation coefficient
Explain how you will define a variable
Operational definition
Gets independent variable in an experiment
Experimental group
Relationship between 2 variables (how does A affect B?)
Correlational research
Each participant has equal chance of being placed in any group
Random assignment
Average of all scores
Mean
Normal bell-shaped curve
Normal distribution
Central score
Median
Score that appears most frequently
Mode
Group of participants
Sample
Square root of variance; expresses distance from median
Standard deviation
Determine if findings can be applied to a larger population from which the sample was selected
Inferential statistics
Give control group a fake to separate physiological effects from psychological effects
Placebo effect
Fake (such as a “drug” that actually has no effects)
Placebo
Distance btwn highest and lowest score
Range
Describe a set of data
Descriptive statistics