Which of These Is an Example of Randomly Assigning Participants

question 48

Multiple Choice

Which of these is an example of randomly assigning participants to conditions in a study?

• A) Susie places the first six people to show up for her study in the experimental group and the next six people in the control group.
• B) Every time a participant shows up for his study, Mark flips a coin to determine which condition to put the participant in.He predetermined that heads is the control group and tails is the experimental group.
• C) Clarice has identified her population of interest as all students attending the local county high school.She then proceeds to randomly choose high school students for her study by having a random number generator generate possible high school ID numbers.
• D) Devon gives his problem-solving task to a group of first graders in the classroom for which he is a student teacher.

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Definitions:

Overall Mean

The average value calculated from the entire dataset, encompassing all observations or measurements.

Inside Diameter

The distance measured across the interior of a circular object or hole, important in manufacturing and engineering for fitting components.

Forging Process

The forging process involves shaping metal through compressive forces, often using a hammer or press, to achieve desired mechanical properties and shapes.

Groove Width

The measurement of the width of a groove, often specific to contexts such as manufacturing, materials engineering, or vinyl records.