Reference no: EM131582626

Question

VALIDITY

Resources

Attributes and Evaluation of Discussion Contributions.

Professional Communications and Writing Guide.

In this Instructor Contact Session, you will hear your instructor talk about different types of validity. Listen to the lecture and take notes. Then post a substantive response to the following discussion questions:

Define internal validity, external validity, and social validity and discuss their importance to behavioral research.

Based on your discussions so far in this class, describe different ways one can evaluate a particular study''s external, internal, and social validity.

part 2

A-B-A WITHDRAWAL DESIGN

Resources

Attributes and Evaluation of Discussion Contributions.

Professional Communications and Writing Guide.

In this Instructor Contact Session, you will hear your instructor talk about reversal and/or withdrawal designs. Listen to the lecture and take notes. Then post a substantive response to the following discussion question:

The Barlow, Nock, and Hersen text identifies five major categories of designs that follow from the A-B-A withdrawal design and provides examples for each.

Choose one of these extensions of the A-B-A withdrawal design and describe a hypothetical research study that would be relevant to your area or field of interest.

Be sure to identify the type of extension in your subject line (for example, A-B-A-B-A-B).