N450 Chapter 8
Good Research Design - ANS-All elements of the research process should be interrelated and
fits together. Design--Hypothesis--theoretical framework--literature review--problem
statement--design
Purpose of Research Design - ANS--provides the plan or blueprint
-Vehicle for systematically testing research questions and hypotheses
-Provides the structure for maintaining the control in the study
Control - ANS-Hold the conditions of the study uniform and avoid or decrease the effect of
intervening, extraneous, or mediating variables on the dependent variable or outcome
Objectivity in Conceptualization of the Research question - ANS--Objectivity achieved from
thorough review of lit and development of theoretical framework
-Lit review should be presented so reader can judge objectivity
Accuracy - ANS-Theoretical framework and lit review
Study systematically and logically flow from the research question
Feasibility - ANS-Time-time to compete the study
Subject availability- sufficient number of eligible subjects
Facility/equipment availability
Expense
Experience
Ethics
Control and Intervention Fidelity - ANS-Ensures that every subject receiving the intervention
receives the identical intervention or treatment
Intervening and Mediating Variables - ANS--Are processes that occur during the study
Extraneous Variables - ANS-subject, researcher, or environmental characterstics that might
influence the dependent variable
Homogenous Sample - ANS-Similarity with respect to the extraneous variables relevant to the
particular study
consistent data collection=constancy
Controlling Extraneous Variables - ANS-Constancy and intervention fidelity
Manipulating independent variable
Randomization
Good Research Design - ANS-All elements of the research process should be interrelated and
fits together. Design--Hypothesis--theoretical framework--literature review--problem
statement--design
Purpose of Research Design - ANS--provides the plan or blueprint
-Vehicle for systematically testing research questions and hypotheses
-Provides the structure for maintaining the control in the study
Control - ANS-Hold the conditions of the study uniform and avoid or decrease the effect of
intervening, extraneous, or mediating variables on the dependent variable or outcome
Objectivity in Conceptualization of the Research question - ANS--Objectivity achieved from
thorough review of lit and development of theoretical framework
-Lit review should be presented so reader can judge objectivity
Accuracy - ANS-Theoretical framework and lit review
Study systematically and logically flow from the research question
Feasibility - ANS-Time-time to compete the study
Subject availability- sufficient number of eligible subjects
Facility/equipment availability
Expense
Experience
Ethics
Control and Intervention Fidelity - ANS-Ensures that every subject receiving the intervention
receives the identical intervention or treatment
Intervening and Mediating Variables - ANS--Are processes that occur during the study
Extraneous Variables - ANS-subject, researcher, or environmental characterstics that might
influence the dependent variable
Homogenous Sample - ANS-Similarity with respect to the extraneous variables relevant to the
particular study
consistent data collection=constancy
Controlling Extraneous Variables - ANS-Constancy and intervention fidelity
Manipulating independent variable
Randomization
