EDAPT Exam – Research Design, Qualitative &
Quantitative Methods, and Causality|Verified
Questions Complete with A+ Graded Rationales
Latest Updated 2026
Which research is designed to describe in detail some process, event, or outcome that is used
when very little is known about the research question?
Descriptive study
Which type of research design studies the response of one individual to an intervention based
on measurement of a baseline and ongoing measurement after introducing a treatment?
Single subject design
Which research design is a qualitative method in which the researcher attempts to develop a
theory of process, action, or interaction based on in-depth analysis of the words of informants?
Grounded theory
The nurse researcher is studying the features and interactions of a given culture by immersion in
the natural setting over an extended period of time. What type of descriptive design is the
nurse using?
Ethnography
What is the limitation of a predictive study?
May be affected by extraneous variables
Match the design type to its description.
Tests of model fit - Observe causal relationships between variables based on fitting data to a
preconceived model.
Predictive study - Describes the relationship between a variable (or a group of variables) and an
outcome variable.
Grounded theory - Develop a theory of process, action, or interaction based on in-depth
analysis of the words of informants.
, Correlation - Describes the relationship between two variables in a single population or the
relationship between a single variable in two populations.
A nurse is implementing research that studies causality by introducing an intervention to one
group (the treatment group) and comparing the outcome to that of another group that has not
experienced the intervention (the control group). The participants are randomly assigned to
groups. What type of research design is the nurse using?
Experimental design
Which of the following should be part of an evidence-based research study? Select all that
apply.
Design variables are identified and defined.
The design picked can be clearly identified and linked to the research question.
The rationale is provided for the design choice.
Identify the design used and that standard language describes the design choice.
Review this nursing research question: What is the perception of the effectiveness of physical
therapy among post-operative knee replacement clients?
What is the variable in the question?
Perception of effectiveness
Review this nursing research question and select the variable posed by the question:
What are the emotional and psychological reactions of clients who have received a total
mastectomy?
Emotional and psychological reactions
The nurse researcher has established causality between the number of overtime hours a nurse
works in a week and the number of errors in medication administration. Which conditions did
the research meet to establish causality? Select all that apply.
The cause must precede the effect.
Rival explanations for the effect were ruled out.
Quantitative Methods, and Causality|Verified
Questions Complete with A+ Graded Rationales
Latest Updated 2026
Which research is designed to describe in detail some process, event, or outcome that is used
when very little is known about the research question?
Descriptive study
Which type of research design studies the response of one individual to an intervention based
on measurement of a baseline and ongoing measurement after introducing a treatment?
Single subject design
Which research design is a qualitative method in which the researcher attempts to develop a
theory of process, action, or interaction based on in-depth analysis of the words of informants?
Grounded theory
The nurse researcher is studying the features and interactions of a given culture by immersion in
the natural setting over an extended period of time. What type of descriptive design is the
nurse using?
Ethnography
What is the limitation of a predictive study?
May be affected by extraneous variables
Match the design type to its description.
Tests of model fit - Observe causal relationships between variables based on fitting data to a
preconceived model.
Predictive study - Describes the relationship between a variable (or a group of variables) and an
outcome variable.
Grounded theory - Develop a theory of process, action, or interaction based on in-depth
analysis of the words of informants.
, Correlation - Describes the relationship between two variables in a single population or the
relationship between a single variable in two populations.
A nurse is implementing research that studies causality by introducing an intervention to one
group (the treatment group) and comparing the outcome to that of another group that has not
experienced the intervention (the control group). The participants are randomly assigned to
groups. What type of research design is the nurse using?
Experimental design
Which of the following should be part of an evidence-based research study? Select all that
apply.
Design variables are identified and defined.
The design picked can be clearly identified and linked to the research question.
The rationale is provided for the design choice.
Identify the design used and that standard language describes the design choice.
Review this nursing research question: What is the perception of the effectiveness of physical
therapy among post-operative knee replacement clients?
What is the variable in the question?
Perception of effectiveness
Review this nursing research question and select the variable posed by the question:
What are the emotional and psychological reactions of clients who have received a total
mastectomy?
Emotional and psychological reactions
The nurse researcher has established causality between the number of overtime hours a nurse
works in a week and the number of errors in medication administration. Which conditions did
the research meet to establish causality? Select all that apply.
The cause must precede the effect.
Rival explanations for the effect were ruled out.
