## Complete a data analysis report using a t-test for assigned variables.

Complete a data analysis report using a t-test for assigned variables.

1 Accurately articulates the data analysis plan. Ensures the plan is well justified, logical, and thorough.

2 Accurately analyzes and thoroughly evaluates and assesses statistical assumptions.

3 Accurately interprets statistical results and hypotheses, and ensures the statistical results are thoroughly evaluated and assessed.

4 Ensures the statistical conclusions, the limitations of the test, and/or possible alternative explanations are logical and thoroughly evaluated.

5 Thoroughly evaluates potential applications of the test in the field and their implications.

6 Exhibits strict and nearly flawless adherence to organizational, professional, and scholarly writing standards, including APA style and formatting.

The following statistical analysis software is required to complete your assessments in this course:

Jeffreys’s Amazing Statistics Program (JASP).

template in dowloads

In this assessment, you’ll begin to explore mean group differences in your course room data. Is it possible that being in a particular group result in higher or lower mean achievement levels? You’re going to explore possible differences in final exam scores for students who attended a review session versus students who did not attend a review session.

Variable Definition

Review Attended review sessions? 1 = no; 2 = yes.

Final Final exam: number of correct answers.

Variables and Definitions

Step 1: Write Section 1 of the DAA: Data Analysis Plan

Name the variables used in this analysis and whether they are categorical or continuous.

State a research question, null hypothesis, and alternate hypothesis for the independent samples t-test.

Step 2: Write Section 2 of the DAA: Testing Assumptions

Test for one of the assumptions of t tests – equality (homogeneity) of variances.

Create statistical output showing the Levene’s Test for Equality Variances.

Paste the table in the DAA template.

Interpret the Levene’s test.

Step 3: Write Section 3 of the DAA: Results & Interpretation

If the homogeneity assumption is not violated (Section 2), run the “Student” version of the independent samples t-test in the statistical software.

If the homogeneity assumption is violated, run the “Welch” version of the independent samples t-test in the statistical software.

Also run the “Descriptives” option to obtain the means and standard deviations for each group.

Paste the statistical software output of the t test into the DAA template. Below the output:

Report the means and standard deviations for each group.

State the results of the t test.

Interpret the statistical results against the null hypothesis and state whether it is rejected or not rejected.

Step 4: Write Section 4 of the DAA: Statistical Conclusions

Provide a brief summary of your analysis and the conclusions drawn about this t test.

Analyze the limitations of the statistical test and/or possible alternative explanations for your results.

Step 5: Write Section 5 of the DAA: Application

Analyze how you might use the independent samples t test in your field of study.

Name an independent variable and dependent variable that would work for such an analysis and why studying it may be important to the field or practice.

Paper Format: APA

### Answer preview to Complete a data analysis report using a t-test for assigned variables.

APA

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