| Course | PSYC 421 Psychological Measurement (PSYC421) |
|---|---|
| Credit hours | 3 |
| Program | BS in Psychology |
| Length | 8 Module/Weeks, online |
| Weeks with written work | 8 of 8 |
| Samples on this site | 8 week sample papers |
| Sources | Liberty's 2026-2027 catalog and the published PSYC 421 course guide |
| Updated | October 2026 |
What PSYC 421 covers
The two forums fall in Modules/Weeks 1 and 5, each a thread past 350 words and replies past 150 words on two other students' threads; the SPSS assignments in Modules/Weeks 2 and 3 move from describing a normative sample to judging a test's reliability and validity from the same data file.
The Item Development and Analysis Worksheet comes in Module/Week 4, the 3 to 5 page Test Evaluation Paper on a test outside the textbook in Module/Week 6, the Technology Presentation on the Barnum effect or the psychological interview in Module/Week 7 and the 3 to 5 page Clinical Intake Report in Module/Week 8.
This course is an in-depth study of standardized tests in psychology, counseling, and education. Course content includes personality, aptitude, general ability, achievement, and interest tests. It will also cover elementary statistics necessary to test usage and interpretation.
PSYC 421 week by week, with the sample for each
| Week | Written work in the course guide | Points | Sample |
|---|---|---|---|
| Week 1 | DB Forum 1 (Course Requirements Checklist, Class Introductions and Quiz 1 also due) | 50 | Read the Week 1 sample |
| Week 2 | SPSS Assignment Part 1 (Quiz 2 also due) | 50 | Read the Week 2 sample |
| Week 3 | SPSS Assignment Part 2 (Quiz 3 also due) | 100 | Read the Week 3 sample |
| Week 4 | Item Development and Analysis Worksheet (Quiz 4 also due) | 50 | Read the Week 4 sample |
| Week 5 | DB Forum 2 (Quiz 5 also due) | 50 | Read the Week 5 sample |
| Week 6 | Test Evaluation Paper (Quiz 6 also due) | 100 | Read the Week 6 sample |
| Week 7 | Technology Presentation (Quiz 7 also due) | 100 | Read the Week 7 sample |
| Week 8 | Clinical Intake Report (Quiz 8 also due) | 100 | Read the Week 8 sample |
Where PSYC 421 papers lose points
PSYC 421 work loses points when statistics ignore a variable's level of measurement, when alpha is reported without what it means for a single score, when item statistics are computed but never tied to a decision, when a test evaluation repeats only the developers' claims, and when an intake report offers a diagnosis a student interview cannot support.
Using a PSYC 421 sample well
The samples cite Cohen and Swerdlik, Meyer and colleagues, Field, Cronbach, Tavakol and Dennick, Cohen, Kamarck and Mermelstein, Kelley, Haladyna and colleagues, Trahan and colleagues, Pietschnig and Voracek, Duckworth and colleagues, Duckworth and Quinn, Credé and colleagues, Forer, Meehl, Snyder and colleagues, Dickson and Kelly, Furnham and Schofield and Sommers-Flanagan and Sommers-Flanagan.
PSYC 421 questions, answered
What textbook does PSYC 421 use?
Cohen and Swerdlik's Psychological Testing and Assessment: An Introduction to Tests and Measurement, read from statistics and norms through reliability, validity, intelligence and clinical assessment.
How are PSYC 421 quizzes set up?
Eight open-book, open-note quizzes, one per module, each with 25 multiple-choice questions and a limit of 1 hour and 15 minutes.
Which test can I evaluate for the PSYC 421 Test Evaluation Paper?
Any psychological test that the textbook and course lectures do not cover, as long as its psychometric properties can be reported and the choice justified.
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