SPSS: T-tests

Assignment Overview

By successfully completing this assignment, you will demonstrate your proficiency in the following EPAs and advance practice behaviors:

• EPA 2.1.3: Apply critical thinking to inform and communicate professional judgments.
  • APB 2.1.3.A: Apply critical thinking in verbal and written communication through the use of leadership and technology with colleagues, individuals, families, groups, organizations, and communities.
    • Related Assignment Criteria:
      • 4. Apply critical thinking in verbal and written communication through the use of leadership and technology.

Assignment Scenario

The town of Brant has started an after-school program for high school youth to prepare them for the ACT college entrance examination. The after-school program had 29 youth participants; the program manager compared their ACT scores with the ACT scores of 36 similar high school youth who did not participate in the after-school program. The program manager wants to determine if the after-school program had a positive effect on ACT scores.

Assignment Instructions

For this assignment, complete the following in a one-page, APA-formatted paper:

1. Review the online tutorial, which demonstrates t tests using two different scenarios. Then determine which type of t-test to conduct. Once you have determined that, answer the following:
   • What is the sample size?
   • What is the sample mean of each group?
2. Based on the table you develop in SPSS, identify the following factors:
   • Mean difference.
   • T obtained (t).
   • Degrees of freedom (df).
   • Significance (two-tailed).
3. Based on the value of the test statistic, write a brief narrative explaining the implications of your findings:
   • Would you retain or reject the null hypothesis?
   • What are limitations that must be considered in interpreting the results?
4. Attach your SPSS data set, linked in the Resources.

Additional Requirements

The assignment you submit is expected to meet the following requirements:

• Written communication: Written communication is free of errors that detract from the overall message.
• APA formatting: Resources and citations are formatted according to APA style and formatting standards.
• Length of paper: One page, double spaced.
• Font and font size: Times New Roman, 12 point.