An Experiment with a Small Sample Is Conducted to Test

question 16

Multiple Choice

An experiment with a small sample is conducted to test the effectiveness of a promising new intervention for treating substance abuse.The experimental group's outcome is better than the control group's outcome, but the results are not statistically significant.The implication of this finding for evidence-based practice is:

• A)The new intervention was ineffective.
• B)The new intervention was effective, but not as effective as predicted.
• C)It is conceivable that the new intervention is effective, although we cannot rule out sampling error as the explanation for the research finding.Additional testing of this intervention with a larger sample size would be in order.
• D)None of these.

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Definitions:

Random Assignment

A procedure in experimental designs to assign participants to either the treatment or control group in a manner that ensures each participant has an equal chance of being assigned to any group.

Reading Test

An examination or assessment to measure the proficiency or comprehension level in reading.

Teaching Method

Various strategies or approaches used by educators to facilitate learning among students.

Double Blind

A double-blind study is an experimental method in which neither the participants nor the experimenters know which participants are receiving the test treatment and which are receiving a control treatment, to prevent bias.