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Research Methods

The Science of Psychology


Reliability & Validity

Conceptualizing a Research Study

Descriptive Methods

Key Elements of Experimental Design

Experimental Designs

Quasi-Experimental Designs

Applying Research Concepts

General Review Material


Why We Need Statistics

Levels of Measurement

Central Tendency and Variability

Inferential Statistics

Statistical Significance

Single Sample t-test

t-test for Dependent Means

t-test for Independent Means

One-way Analysis of Variance

Factorial Analysis of Variance

Repeated Measures Analysis of Variance




Scale Reliability

Applying Statistical Concepts

General Review Material

Online Simulation: Comparing Independent and Correlated t-tests

This Java applet investigates the differences between independent and correlated t tests.

The simulation and its associated questions can be used as either homework assignment or as an in-class activity for those classes with access to computers with Internet connection. It can also be used easily in courses that utilize a course management system. Students can work either in pairs or individually as they run the simulations and answer the questions.

Author: David Lane

Posted: Sunday, May 16, 2010