When We Switch Replications in a Non-Equivalent Comparison Group Design

question 19

Multiple Choice

When we switch replications in a non-equivalent comparison group design, we:​

• A) ​administer the treatment to the control group before posttesting.
• B) can determine whether the difference between the groups at the first posttest may be attributed to the lack of comparability between the two groups.​
• C) decrease the chances of determining whether the difference between the groups at the first posttest may be attributed to a selection bias.​
• D) decrease the internal validity of the design.​

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Definitions:

Object Permanence

The understanding that objects continue to exist even when they cannot be seen, heard, or otherwise sensed, typically developed in infancy.

Conservation

The principle that certain properties, like volume, mass, and number, remain the same despite changes in the forms of objects, in cognitive development.

Centration

In Piaget’s theory, the tendency of a young child to focus only on one feature of an object while ignoring other relevant features.

Appearance

The way that someone or something looks to others, encompassing aspects of physical presentation and style.