A study was conducted to investigate whether using a graphing calculator resulte

Question

A study was conducted to investigate whether using a graphing calculator resulted In better performance on a statistics test compared to using a scientific calculator. Seventy statistics students were randomly selected to participate in the study. The teacher randomly assigned 35 students to use graphing calculators and 35 students to use scientific calculators. The results of the two groups of students were compared. Which type of study design does this scenario use? Experiment Survey Matched pairs design Observational study

Explanation / Answer

Which type of study design does this scenario use?

Answer:

Observational study

The observational study is the study in which researcher has no control over the experiment. In this observational study we compare the subjects against control group. In the given scenario, the control group is used as the type of calculator and subjects are considered as randomly selected students. In this study the researchers do not have control over the experiment or results of experiment. Researchers can only draw conclusions by observing the results of the study.

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