TABLE 10-5 To Test the Effectiveness of a Business School Preparation Course

question 58

Multiple Choice

TABLE 10-5
To test the effectiveness of a business school preparation course, 8 students took a general business test before and after the course. The results are given below.
Exam Score Exam Score
Student Before Course (1) After Course (2)
1 530 670
2 690 770
3 910 1,000
4 700 710
5 450 550
6 820 870
7 820 770
8 630 610
-Referring to Table 10-5, the value of the sample mean difference is ________ if the difference scores reflect the results of the exam after the course minus the results of the exam before the course.

• A) 0
• B) 50
• C) 68
• D) 400

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Definitions:

Stress Hormone

Hormones, such as cortisol, that are released into the body in response to stress, affecting various bodily functions.

Severe Panic Attack

A sudden onset of intense fear or discomfort, often characterized by symptoms such as rapid heartbeat, sweating, and feelings of doom.

Generalized Dissociative Amnesia

A psychological condition in which a person cannot recall important personal information, not due to ordinary forgetfulness but often triggered by trauma or stress.

Psychomotor Retardation

A slowing-down of thought and a reduction of physical movements in an individual, often an indicator of major depression or other psychiatric disorders.