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

Author Question: Confounding due to maturation is controlled by A) limiting participants to a one sex only. B) ... (Read 70 times)

ssal

  • Hero Member
  • *****
  • Posts: 572
Confounding due to maturation is controlled by
 
  A) limiting participants to a one sex only.
  B) preventing attrition during the study.
  C) employing a posttest.
  D) having the experimental and control groups equivalent at the beginning of the study.

Question 2

In an experiment, the independent variable
 
  A) must be measured at least twice.
  B) is observed rather than manipulated.
  C) must vary across conditions.
  D) needs to be held constant across conditions.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Viet Thy

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

Answer: D

Answer to Question 2

Answer: C





 

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

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?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

For a complete list of videos, visit our video library