PSYC 355
SPSS: I T A INDEPENDENT-SAMPLES T EST SSIGNMENT NSTRUCTIONS
OVERVIEW
This assignment is designed to increase your statistical literacy and proficiency in conducting
and interpreting the independent-samples test. You will be completing two independent-t
samples tests in SPSS, using data that are related to specific research scenarios in the behavioralt
sciences, such as psychology, social work, and counseling. Behind the scenes knowledge of how
this test is conducted is fundamental to being able to understand and apply research in your
related field to your practice. Additionally, SPSS skills are professionally valuable, as it is one of
the most commonly used statistical software packages in behavioral science settings, both
academic and professional.
INSTRUCTIONS
●This assignment includes two problem sets that contain research scenarios and related
questions.
●For each scenario, you will run an analysis in SPSS. The required product will include
the SPSS output, an APA-style Results section describing the results, and the appropriate
graph inserted as a Figure in APA style.
●For all problems, interpret results based on an alpha level of α = .05.
●This assignment is worth 60 points.
Please review the SPSS Homework Tutorial in this module for directions on how to run the
statistical test, as well as the Results Sections in APA Style presentation, which includes a
template for completing the APA-style Results sections for the independent-samples test. The t
scenarios begin on the next page.
PSYC 355
External Locus
of Control
Internal Locus
of Control
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23
17
19
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23
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