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Research – the good, the bad & the ugly

Research – the good, the bad & the ugly. Chapter 2.1. Types of Research. Naturalistic observation Case study Survey Longitudinal study Cross-sectional study Correlations and Explanations Experiment . Naturalistic Observation. Watching subjects in their natural environment

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Research – the good, the bad & the ugly

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  1. Research – the good, the bad & the ugly Chapter 2.1

  2. Types of Research • Naturalistic observation • Case study • Survey • Longitudinal study • Cross-sectional study • Correlations and Explanations • Experiment

  3. Naturalistic Observation • Watching subjects in their natural environment • Record only observable behaviors • Key: Do not be obvious

  4. Survey • Interviews • Questionnaires

  5. Longitudinal Studies • Studying the same group for several years • Determining whether behavior and/or feeilngs have changes

  6. Cross-Sectional Studies • Organize individuals into groups based on age • Groups are randomly samples • Members are surveyed, tested, or observed

  7. Correlations & Explanations • Observe people or animals • Record observations in a descriptive study • Correlation – how two sets of data relate to each other • Positive correlation – both items increase or decrease together • Negative correlation – as one item increases, the other item decreases • No correlation – both items are unrelated

  8. Positive Correlation

  9. Negative Correlation

  10. No Correlation

  11. Experiment • A test done on a group to determine something that is unknown • All experiments have: • Hypothesis • Variables • Experimental group • Control group

  12. Types of Research • Naturalistic observation • Case study • Survey • Longitudinal study • Cross-sectional study • Correlations and Explanations • Experiment

  13. samples • A small group from a total population

  14. Types of samples • Random sample – each individual has an equal chance of being in the sample • Stratified sample – all subgroups are equally represented in the sample

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