A Large Pharmaceutical Company Selected a Random Sample of New $$\text { Job Performance } = - 60.8 + 4.80 \text { Age } + 1.44 \text { GPA } + 9.06 \text { Gender. }$$

question 25

Multiple Choice

A large pharmaceutical company selected a random sample of new hires and
Obtained their job performance ratings based on their first six months with the company.
These data were used to build a multiple regression model to predict the job performance
Of new hires based on age, GPA and gender (female = 1 and male = 0) . The regression
Equation is: $$\text { Job Performance } = - 60.8 + 4.80 \text { Age } + 1.44 \text { GPA } + 9.06 \text { Gender. }$$
Which of the following is the correct interpretation for the regression coefficient of
Gender?

• A) The regression coefficient indicates that the job performance score for a female will, on average, be 9.06 points higher than for males of the same age and GPA.
• B) The regression coefficient indicates that the job performance score for a female will, on average, be 9.06 points lower than for males of the same age and GPA.
• C) The regression coefficient indicates that the job performance score for a female will, on average, be 9.06 times higher than for males.
• D) The regression coefficient indicates that the job performance score for a female will, on average, be 9.06 times lower than for males.
• E) The regression coefficient is not significantly different from zero.

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Definitions:

Quasi-Experiment

A research design that attempts to establish a cause-and-effect relationship but lacks the random assignment of subjects to experimental and control groups.

Control Group

In experimental research, the group of participants that does not receive the intervention being tested, used as a benchmark to measure the effect of the intervention.

Independent Variable

A variable that is manipulated to determine its effects on a dependent variable in an experiment.

Experiment

Rigorously controlled, replicable procedure in which the researcher manipulates variables to assess the effect of one on the other.