This topic contains a solution. Click here to go to the answer

Author Question: Tamara's class experiment involves measuring reaction time. She uses one timer for the experimental ... (Read 30 times)

Evvie72

  • Hero Member
  • *****
  • Posts: 519
Tamara's class experiment involves measuring reaction time. She uses one timer for the experimental group and a second timer for the control group. Conducting the experiment this way can possibly introduce a confound based on:
 
  a. mortality.
  b. statistical regression.
  c. instrumentation.
  d. maturation.

Question 2

When participants in an experiment communicate with each other, the difference between groups may be reduced. This is called:
 
  a. diffusion.
  b. dissension.
  c. dissemination.
  d. statistical regression.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xthemafja

  • Sr. Member
  • ****
  • Posts: 348
Answer to Question 1

C

Answer to Question 2

A





 

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

For a complete list of videos, visit our video library