Checklist: Data Analysis

SoTL Research Foundations: Data Analysis Procedures

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1. Data Preparation:

    a. Data Integration: Compile all data into a single source.

      - Example: Aggregate engagement scores and demographic information into one spreadsheet.

    b. Data Cleaning: Address missing data, outliers, and errors.

      - Example: Use mean imputation for missing engagement scores.

    c. Data Transformation: Convert data into suitable formats for analysis.

      - Example: Normalize engagement scores to a common scale.

2. Exploratory Data Analysis:

    a. Descriptive Statistics: Calculate means, medians, and standard deviations for continuous variables and frequency counts for categorical variables.

      - Example: Summarize average engagement levels for each teaching method.

    b. Data Visualization: Create histograms, box plots, and scatter plots.

      - Example: Visualize engagement score distributions with histograms.

    c. Correlation Analysis: Calculate correlation coefficients between continuous variables..

      - Example: Assess correlation between engagement scores and class size.

3. Tests of Assumptions: Conduct tests for normality and homogeneity of variances.

    - Example: Perform the Shapiro-Wilk test for normality and Levene's test for homogeneity of variances.

4. Hypothesis Testing:

     a. Formulate the Hypothesis: Develop null and alternative hypotheses.

       - Example: Null hypothesis: There is not a significant difference in engagement levels between teaching methods.

Alternative hypothesis: There is a significant difference in engagement levels between teaching methods.

     b. Select the Statistical Test: Choose the appropriate test based on the research question.

       - Example: Select the independent-samples t-test to compare group means.

     c. Conduct the Test: Use software tools to perform the analysis.

       - Example: Use Excel to run the t-test and obtain results.

5. Interpret the Results: Analyze p-values, confidence intervals, and effect sizes.

    - Example: Interpret a p-value less than .05 as a significant difference in engagement levels between teaching methods.

6. Reporting the Results: Present findings in APA format.

    - Example: Report the t-test results, including t-value, degrees of freedom, p-value, effect size, and narrative interpretation.

 


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