Dave,a Graduate Student,has Difficulty Talking to Groups

question 94

Multiple Choice

Dave,a graduate student,has difficulty talking to groups.Unfortunately,he has chosen a career in which he must speak to large groups of people.The night before a presentation he tosses and turns,and the resulting lack of sleep makes the situation worse.When he makes a presentation,he often becomes confused and stumbles over his words.As a result,he feels worthless and miserable.Which two criteria of abnormal behaviour are most useful in analyzing this case?

• A)Inability to function normally and statistical rarity
• B)Statistical rarity and deviance from social norms
• C)Subjective discomfort and impairment in normal functioning
• D)Deviance from social norms and subjective discomfort

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Definitions:

Equal-variances T-test

A statistical method that compares the average values of two groups, under the assumption that both groups have equal variances.

Normal Populations

Populations in which the underlying distribution of the data follows a normal distribution, characterized by a symmetric bell-shaped curve.

Independent Samples

Samples in which the selection or occurrence of one does not affect the selection or occurrence of the other.

Two-tailed Hypothesis Test

A statistical test used to determine if there is a significant difference between the means or proportions of two populations in either direction.