On a Measure of Writing Ability, College Students in General

question 10

Essay

On a measure of writing ability, college students in general have a mean of 60, a standard deviation of 8, and the scores follow a normal distribution.
a. Approximately what percentage of college students have writing ability scores above 68? Above 76? Below 52? Between 52 and 60? Use the normal curve approximation rules.
b. Explain your answers and procedure to a person who is not familiar with the normal curve or normal curve areas.

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Definitions:

Two-Factor Theory

A psychological theory proposing that emotion is based on two factors: physiological arousal and cognitive label of the arousal, proposed by Stanley Schachter and Jerome E. Singer.

Negative Reinforcement

A behavioral principle where the removal of an unpleasant stimulus strengthens a behavior or increases its likelihood of being repeated.

Content-Specificity

Distinct cognitive content is related to different types of disorders. For example, depression is related to thoughts of deprivation and loss, whereas anxiety is related to themes of threat and potential harm.