Case 17.1 ​

question 23

Multiple Choice

Case 17.1
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William is a 38-year-old computer systems executive.He has come to a point in his life where he is reassessing his ambitions and personal life.He attends professional development conferences regularly and is working on an MBA.Although he eats a low-fat diet and exercises regularly,he works 70-80 hours a week,seldom sees his children except after they are in bed,does not visit his place of worship except on religious holidays,and feels as though his wife is a stranger.William believes that if he can earn just 20 percent more,he can relax because his family will be financially secure.
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-Refer to Case 17.1.William has decided to change a significant habit in his life.At this time,he is reading about the habit and gathering ideas on how to change it.William is in which stage of the change process?​

• A) ​Motivation
• B) Knowledge​
• C) Practice​
• D) Reinforcement​

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Definitions:

Null Hypothesis

A hypothesis that suggests there is no significant difference or relationship between specified groups or variables, serving as a default position until evidence suggests otherwise.

Sampling Error

The error that occurs due to selecting a sample instead of conducting a census of the entire population, leading to discrepancies between the sample and population parameters.

Statistical Power

The probability that a statistical test will correctly reject a false null hypothesis, related to the study's sample size and effect size.

Type II Error

Occurs when a false null hypothesis is not rejected, implying a failure to detect an effect or difference when one actually exists.