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Quantitative Data

Quantitative Data. Biology Scholars – 2010 Reflections from a Developmental Biologist. Research Design. Experimental vs. Correlational Selecting independent and dependent variables Choosing a design Selecting the appropriate statistical test. Statistics. Descriptive. Inferential.

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Quantitative Data

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  1. Quantitative Data Biology Scholars – 2010 Reflections from a Developmental Biologist

  2. Research Design • Experimental vs. Correlational • Selecting independent and dependent variables • Choosing a design • Selecting the appropriate statistical test

  3. Statistics Descriptive Inferential Sample /Population Does the relationship in the sample exist in the population? Means Relationships Categorical Data • Mean • Median • Mode • Frequencies

  4. Captures qualities or characteristics about the individual, such as a person's eye color, gender, political party, or opinion on some issue. Categorical Data? Surveys or Experiments

  5. Significance? p-values • Any difference is due to either • Chance • Treatment effect • Measures how likely any difference is due to chance • 95% confidence interval • < or > 0.05 • Difference between means • Variability • Sample size

  6. Statistical Decision Tree

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