A Researcher Interested in the Effects of Strenuous Exercises on Reaction

question 153

Multiple Choice

A researcher interested in the effects of strenuous exercises on reaction time gives his experimental group the following instructions: "For the next half hour,you will be guided through a series of strenuous aerobic exercises.At the end of the exercise session,you'll complete a reaction-time test.If you're older,the reaction-time test may be a bit more challenging." He gives the control group the following instructions: "For the next half hour,you will be guided through a series of non-strenuous stretching exercises.At the end of the exercise session,you'll complete a reaction-time test." What's wrong with this study?

• A) There is no control group.
• B) Experimenter bias may have influenced the results.
• C) The study lacks a dependent variable.
• D) The placebo effect way have come into play.

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Definitions:

Mania

A mental health condition marked by periods of great excitement or euphoria, delusions, and overactivity.

Egocentrism

A psychological stage where an individual has difficulty understanding the perspectives of others, often seen in early childhood development.

Attention Deficit Hyperactivity Disorder (ADHD)

A neurodevelopmental disorder characterized by patterns of inattention, hyperactivity, and impulsivity that are more frequent and severe than typically observed in individuals at a comparable level of development.

Generalized Anxiety Disorder (GAD)

A mental health disorder characterized by chronic and excessive worry about various aspects of life, often to the extent that it interferes with daily activities.