An Experiment Is Conducted to Test the Effectiveness of a Social

question 27

Multiple Choice

An experiment is conducted to test the effectiveness of a social work intervention. The experimental group improves more than does the control group, but the results are not statistically significant. This means that​

• A) ​the intervention was not effective.
• B) ​the intervention was effective, but not at a significant level.
• C) ​we cannot rule out sampling error in inferring about the effectiveness of the intervention.
• D) ​the results were clinically significant despite not being statistically significant.

Identify and differentiate between individual and group level performance rewards.

Learn about various job design strategies and their impact on employee motivation and performance.

Analyze the effects of different job characteristics on job satisfaction and employee performance.

Understand the role and impact of job enrichment, job enlargement, and job rotation on employee engagement and organizational efficiency.

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Definitions:

Observations

The act of systematically viewing and recording phenomena or data to gather information about the world.

P-Value

A measure that indicates the probability of obtaining test results at least as extreme as the ones observed during the test, assuming that the null hypothesis is correct.

Level of Significance

Another term for significance level, indicating the criterion used for rejecting the null hypothesis in statistical hypothesis testing.

Treatment Sum

The total sum of all the values of the outcome variable for a specific treatment level in an experimental design.