A School Social Worker Administered a Self-Esteem Test to a Group

question 9

Multiple Choice

A school social worker administered a self-esteem test to a group of 9th graders in September. During the school year the students received intensive social work intervention designed to improve their self-esteem. In May the self-esteem test was given again and the self-esteem scores improved. Which of the following statements is true about this study?​

• A) ​It s results show that the intervention was effective in improving self esteem.
• B) It only controls for testing effects and statistical regression.​
• C) It only controls for history and maturation.​
• D) It does not permit any conclusive causal inferences to be made.​

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Definitions:

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect exists among the variables studied.

Population Proportions

The fraction or percentage of units in a population that have a particular attribute.

Pooling

The process of combining data from different sources or groups to perform a collective analysis.

Null Hypothesis

A basic assumption or statement that there is no effect or no difference, used as a starting point for statistical testing.