A Psychologist Is Interested Looking at the Effectiveness of a New

question 494

Multiple Choice

A psychologist is interested looking at the effectiveness of a new computer program in helping students learn math. She decides to test this new program with a group of middle school students. At this particular school, the boys and girls tend to be disruptive when they are in the same classroom, so she decides to run them in separate groups in the experiment. She creates a group of boys, each of them using the computer program four times per week. She creates a group of girls to serve as a comparison group and they do not get the computer program. This experimental design is flawed because gender is a confounding variable and as a result the following has been lowered

• A)internal validity
• B)external validity
• C)internal reliability
• D)external reliability

Identify factors influencing contrast effects in behavioral responses.

Comprehend the process and stages involved in implementing contingency management programs.

Understand the mechanisms and effects of extinction on behavior.

Recognize the role of behavior modification and self-reinforcement in changing behavior.

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Definitions:

Functional Fixedness

A cognitive bias that limits a person to use an object only in the way it is traditionally used.

Heuristic

A mental shortcut that allows people to solve problems and make judgments quickly and efficiently.

Algorithm

A methodical process or set of instructions designed to resolve an issue.

Fixation

Using a prior strategy and failing to look at a problem from a fresh new perspective.