Author Question: A decline in performance due to repeated testing is to an improvement in performance due to repeated ... (Read 89 times)

lilldybug07

  • Hero Member
  • *****
  • Posts: 546
A decline in performance due to repeated testing is to an improvement in performance due to repeated testing as a ____ effect is to a _____ effect.
 
  a. instrumentation; mortality
  b. mortality; instrumentation
  c. practice; fatigue
  d. fatigue; practice

Question 2

John conducted an experiment to test the effectiveness of a smoking cessation program. The experiment took place over a one-month time period. Subjects in the control group and the experimental group (those who participated in the smoking cessation program) recorded the number of cigarettes that they smoked each day. John was unaware that national stop-smoking week also happened to take place during the one-month time period of his experiment. John's experiment is now confounded by:
 
  a. maturation.
  b. history.
  c. regression to the mean.
  d. mortality.



amandalm

  • Sr. Member
  • ****
  • Posts: 306
Answer to Question 1

d

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

For a complete list of videos, visit our video library