Research Methods

# Research Methods - Research Methods A Quantitative 1 The...

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Research Methods A. Quantitative 1. The essential components ( flowchart ) a. Define a problem/question b. Propose a testable hypothesis (use operational definitions) 1. Conceptual level hypothesis: Frustration leads to Aggression 2. Operational level hypothesis: Taking away toy leads to hitting punching bag more often c. Gather evidence / Test the hypothesis d. Develop/Refine theory e. Define follow-up problems and start all over 2. Types of research a Surveys/questionnaires 1. Must have acceptable validity and reliability 2. Sample must be representative or population being studied 3. Disadvantage is that surveys provide correlational data only a. Remember: Correlation does not equal causation! ( example ) b. Spurious correlation: Taking Latin in high school leads to high grades in college) 4. Advantages are cost and speed b. Experiments 1. Random assignment to experimental and control groups 2. Observes the effect of the Independent Variable on the Dependent Variable (Cause and Effect!) 3. Control of all other variables

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