Author Question: The school newspaper reports that the GPA of athletes is slightly higher than the GPA of ... (Read 75 times)

nenivikky

  • Hero Member
  • *****
  • Posts: 516
The school newspaper reports that the GPA of athletes is slightly higher than the GPA of undergraduates in general. Suppose you want to use these data to argue that athletes are smarter than the average student. Someone else points out that intelligence (smartness) is only one of several factors influencing GPA; others are self-discipline, tutoring, pressure from coaches, required class attendance, and so on. Each of these latter factors is a potential ____ in any simple explanation of GPA.
 
  a. exogenous variable
  b. moderator variable
  c. placebo
  d. confounding variable
  e. discriminant variable

Question 2

A researcher who wants to conduct a study in the local high school finds that she must use volunteers rather than intact class groups. In this case, the researcher should
 
  a. make sure to use a sample of at least 30 or more subjects.
  b. control for the subjects' willingness to volunteer.
  c. keep the volunteer subjects naive as to the purpose of the study.
  d. determine the extent to which volunteers may differ from nonvolunteers on important variables.



234sdffa

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

D

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

For a complete list of videos, visit our video library