Research methods

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  • Research methods
    • Types
      • Laboratory
        • Strength -Highly controlled
        • Weakness -Low ecological validity
      • Field
        • Weakness -less contolled
        • Strength -High ecological validity
      • Quasi
        • Strength -explore a variable that cannot be manipulated
        • Weakness -small sample
        • Naturally occurring IV
    • Design
      • Repeated Measures
        • Weakness -Practice /fatigue effects
        • Strength -No individual differences
      • Independent Measures
        • Strength -no fatigue effects
        • Weakness -Individual differences
      • Matched pairs
        • strength -no individual differences -no practice effects -no fatigue effects
        • Weakness -can't match two people 100%
    • Hypothesis
      • Null
        • No statistical significance between the two variables.
      • Alternate
        • One-tailed
          • Predicts direction the correlation will go
        • Two-taled
          • Says that one variable will have an effect on the other, but doesnt say which way the correlation will go
        • The inverse, or opposite, of the null hypothesis

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