Begin by identifying the dependent and independent variables

Reference no: EM131383911

There are uncontrolled extraneous variables in the study described here. Name as many as you can. Begin by identifying the dependent and independent variables.

An investigator concluded that statistics Textbook A was better than Textbook B, after comparing two statistics classes.

One class, which met MWF at 10:00 A.M., used Textbook A and was taught by Professor X. The other class, which met for 3 hours on Wednesday evening, used Textbook B and was taught by Professor Y. At the end of the term, all students took the same comprehensive test. The mean score for the Textbook A students was higher than the mean score for the Textbook B students.

Reference no: EM131383911

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