A researcher splits participants in an experiment into four randomly selected groups. The first is given two hints and 10 minutes to complete a test. Another group is given two hints and 5 minutes... The third group is given 10 minutes with only one hint. The last group is given 5 minutes with only one hint. The mean test score for each group is measured. What is an example of a treatment in this experiment by the researcher?

Rationale

Two hints and 10 minutes.

In this experiment, the treatment refers to the specific conditions applied to each group of participants, which in this case is the combination of hints and time allocated for completing the test. The treatment directly influences the participants' performance and is the variable that the researcher manipulates.

A (The time to complete the test) YOUR ANSWER

While the time to complete the test is indeed a factor in the experimental design, it does not represent the entire treatment. The treatment consists of both the hints and the time, meaning that just focusing on time alone is insufficient to describe the complete conditions under which participants are tested.

B (A participant) YOUR ANSWER

A participant is an individual subject in the experiment and does not represent a treatment. Treatments are defined as the specific conditions or interventions applied to groups of participants in order to observe their effects. Therefore, a single participant cannot be considered a treatment.

C (Two hints and 10 minutes) CORRECT

This option accurately encapsulates the specific conditions applied to one of the groups in the experiment. It combines both the number of hints provided and the amount of time allocated, making it a clear example of a treatment, as it is what the researcher manipulates to assess its effect on test scores.

D (A test score) YOUR ANSWER

A test score is a measured outcome of the treatment rather than the treatment itself. It reflects the participants' performance resulting from the conditions they were subjected to but does not represent the experimental manipulation carried out by the researcher.

Conclusion

In this experiment, the treatment is defined by the specific conditions applied to the groups, which in this case is "two hints and 10 minutes." This combination of hints and time serves as the manipulation that the researcher uses to explore its impact on test scores, distinguishing it from other elements such as participants or outcomes. Understanding the treatment is crucial for analyzing the effects of the experimental design on participant performance.

Two hints and 10 minutes.

Related Questions

Related Quizzes

How familiar were you with this question?

Report an Issue

Rate this Practice Test