The purpose of a research study is to examine the effects of ...

[scienceeasy]

The purpose of a research study is to examine the effects of social support on the psychological health of elderly residents of a nursing home. In this statement, psychological health is which part of the study?
 
  1. Dependent variable
  2. Independent variable
  3. Attribute variable
  4. Confounding variable

Question 2

The nurse researcher is writing the operational definition of a study variable. What information should be included in this definition?
 
  1. How the variable relates to the hypothesis
  2. How the variable is defined in the study
  3. How the variable will be measured in a study
  4. How the variable relates to the specific group to be studied

[otokexnaru]

Answer to Question 1

1
Rationale 1: The presumed effect, or outcome, is psychological health, the dependent variable.
Rationale 2: The independent variable is the presumed cause/the manipulation or treatment in a study.
Rationale 3: An attribute variable describes the attributes or characteristics of the subjects in a study.
Rationale 4: A confounding variable is an extraneous variable that is not controlled in a study.
Global Rationale:

Answer to Question 2

3
Rationale 1: The hypothesis does not include the operational definition of the variables.
Rationale 2: This is the conceptual definition.
Rationale 3: An operational definition indicates how a variable will be observed or measured in a study.
Rationale 4: This is not the purpose of the operational definition.
Global Rationale: