This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An experimenter predicts that a behavior modification program will shorten the length of stay in an ... (Read 18 times)

oliviahorn72

  • Hero Member
  • *****
  • Posts: 579
on: Jun 19, 2018
An experimenter predicts that a behavior modification program will shorten the length of stay in an institution for retarded adolescents. The null hypothesis would be _____.
 
  a. the behavior modification program will not shorten the length of stay in the institution
  b. the behavior modification program will not lengthen the length of stay in the institution
  c. the behavior modification program will not affect the length of stay in the institution
  d. all of these are correct

Question 2

An experimenter uses the pretest posttest design to test the effectiveness of a new drug in reducing joint pain. The null hypothesis would state that _____.
 
  a. affects hallucinations
  b. increases hallucinations
  c. the new drug does reduce hallucinations
  d. decreases joint pain


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

meganlapinski

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jun 19, 2018
Answer to Question 1

A
The alternative hypothesis is directional. Therefore, the effect is to shorten the length of stay in the institution. The null hypothesis states that the treatment (the behavior modification program) does not cause the effect (shorten the length of stay).

Answer to Question 2

C
The null hypothesis states that the treatment (the new drug) does not cause the effect (reduce hallucinations.


oliviahorn72

  • Member
  • Posts: 579
Reply 2 on: Jun 19, 2018
Excellent

xiaomengxian

  • Member
  • Posts: 311
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

A lilac, orange and white Satin Peruvian guinea pig (show-length coat) A lilac, orange and white Satin Peruvian guinea pig (show-length coat)
Four approaches to studying the evolution of human behavior. Four approaches to studying the evolution of human behavior.
Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada Telomere length is related to the amount of time adults spend in leisure time activity. Source: Ada
An adjustable wrench. Adjustable wrenches are sized by the overall length of the wrench, not by how ... An adjustable wrench. Adjustable wrenches are sized by the overall length of the wrench, not by how ...
Squeeze along the length of each finger from web to nail. First along top/bottom and then along the ... Squeeze along the length of each finger from web to nail. First along top/bottom and then along the ...
Measuring leg length Measuring leg length
Video: Bone processes - resorption and deposition, remodeling and response to stress in adult bones

For a complete list of videos, visit our video library