Professor Golder Is Studying Hyperactivity in Preschool-Age Children

question 130

Multiple Choice

Professor Golder is studying hyperactivity in preschool-age children.She is concerned that differences in child rearing,diet,and home environment may affect her results.To minimize these potential pre-existing variables,she should be sure to do which of the following?

• A)Use random assignment when forming her groups.
• B)Include more than one independent variable.
• C)Only measure a single dependent variable.
• D)Only select children from homes with a high socioeconomic status (SES).

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