When Conducting Experiments with Control and Treatment Groups, the Best

question 7

Multiple Choice

When conducting experiments with control and treatment groups, the best way to ensure that the groups are roughly identical to each other is through a procedure known as:

• A) random sampling
• B) random assignment
• C) comparison assignment
• D) comparison sampling
• E) selective sampling

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Definitions:

Y-Intercept

The location on a graph where a line intersects with the Y-axis.

Null Hypothesis

A hypothesis in statistical analysis that proposes no significant difference or effect, used as a starting point for hypothesis testing.

Household Income

The combined gross income of all members of a household who are 15 years old and older, whether they are related or not.

High School GPA

Grade Point Average in high school, a numerical indicator of a student's academic performance, usually on a scale from 0 to 4.0.