Psych Methods Flashcards
Scientific method
- Formulate hypothesis
- Research method and design
- Collect data
- Analyze
- Publish
Research methods
Experiment
Case studies
Naturalistic behaviour
Surveys
Descriptive/correlational research
Cannot demostrare cause-effect relationship
Surveys
Naturalistic behaviour
Case studies
Experiment
Cause-effect relationship
Causation
Artificial
Naturalistic observation
Less artificial
Good when little know
Reactivity of subject to presence of observer
Surveys
Behaviours hard to observe
Sampling bias
Case studies
Real life illustrations
Subjective
Mean
Average
Median
Middle point
Mode
Most frequent score
Frequency distribution
Negatively- scores to high end
Positively- scores to low end
Variability
How much score varies from each other and mean
Standard deviation
Index of amount of variability
Normal distribution
How human characteristics are dispersed in a population
Percentile score
% of people who score at or below particular score
Correlation
Two variables related to each other
Correlation coefficient
Index of degree of relationship
Strength and direction
0 to -+ 1.0
Inferential statistics
Interpret and draw conclusions
Significance if less than 0.05 due to chance
Meta analysis
Several studies integrated
Duplication
Method bias
Tendency to use one method
Placebo effect
Feeling changes due to preconceived notions
Halo effect
Immediate prior experience changes mood and results
Social desirability
Want to seem socially acceptable
Experimental bias
Wanting to see what supports hypothesis
Use double blind to prevent
