Basic Statistical Analysis
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Statistical Analysis Decision Table
Basic Statistical Analysis
Variable 1 Variable 2 Statistical Analysis Sample Research Question
Mean Difference
Categorical with 2-levels
Metric Independent Samples t Test
Is there a difference in attitudes towards weight gain between men and women?
Categorical with 2 or more levels
Metric One-Way ANOVA Is there a difference in critical thinking scores among psychology, health sciences, and information technology students?
Metric Metric on same scale as Variable 1
Paired Samples t Test Is there a difference in pre- and post-test critical thinking scores among students who completed a course on critical thinking?
Correlation Metric Metric Correlation or Bivariate Regression
Is there a relationship between number of hours spent studying and grade point average (GPA)?
Metric Multiple metric variables
Multiple Linear Regression
Are childhood trauma frequency, severity, and age of initial trauma predictors of post- traumatic stress disorder (PTSD)?
Association Categorical with 2 or more levels
Categorical with 2 or more levels
Chi Square Test of Independence (Crosstabs in IBM SPSS)
Is there a relationship between gender (male or female) and political affiliation (republican, democrat, independent)?