Which hypothesis fails to meet the criteria of testability? a. ...

[rl]

Which hypothesis fails to meet the criteria of testability?
 
  a. Proper handwashing prevents the spread of infection.
  b. Consistent practice of low-impact aerobic exercise will increase coordination among older adults.
  c. Patients who used guided imagery during magnetic resonance imaging (MRI) procedures will have reduced perceptions of emotional distress compared with patients who do not use guided imagery during MRI.
  d. Postoperative patients who receive around-the-clock scheduled analgesics will have lower levels of pain compared with postoperative patients who receive analgesics on an as-needed (PRN) schedule.

Question 2

What is the purpose of a hypothesis for any study?
 
  a. To identify the dependent and independent variables
  b. To provide direction for the study by indicating the expected outcomes
  c. To define the appropriate measures needed to test the research problem
  d. To provide a means of determining the feasibility of the proposed study

[reelove4eva]

Answer to Question 1

ANS: A

Feedback
A This statement does not suggest that there is a predicted outcome as specifically as the other examples. The term proper is value laden and nonspecific. Both proper handwashing and spread of infection require more specific definition.

B This hypothesis includes a predicted outcome.
C This hypothesis includes a predicted outcome.
D This hypothesis includes a predicted outcome.

Answer to Question 2

ANS: B

Feedback
A A hypothesis does not define the variables but makes a statement about the relationship between two or more variables.
B A hypothesis is a declarative statement about two or more variables that predicts an expected outcome.
C A hypothesis does not define the appropriate measures needed to test the research question. The hypothesis does provide direction for the analysis and interpretation of data.
D A hypothesis does not determine the feasibility of a research problem. A study's feasibility is determined by practical considerations such as availability of subjects, equipment, facilities, and money.

[rl]

Thank you

[reelove4eva]

No problemo