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Quantitative Research - Coggle Diagram

- - - - mode, median, mean
    - - two sets of data that different (means or medians)
      - the range
        
        nominal data
        
        difference between the highest and the lowest score
        
        variance
        
        indicates the amount of spread among test scores
        
        The standard deviation (SD)
    - - percentile ranks
      - standard scores
    - - Pearson r & Spearman Rho
    - - a variables is normally distributed
      - skewed distributions
- - - - posttest-Only Control group design
      - pretest-posttest control group design
      - solomon four-group design
      - factorial design
      - repeated measures designs
- - - - process of decision making about the results of a study
    - - no true difference or relationship between parameters in the populations
- - - - collecting data from selected individuals