NUR 265 (Quiz #2) questions fully solved &
updated 2026-2027
Conceptual Definition - answer provides a variable concept with connotative meaning;
established through concept analysis, concept derivation, or concept synthesis
Operational definition - answer Description of how variables or concepts will be measured
or manipulated in a study.
Experimental Study - answer Design that provides the greatest amount of control possible
to examine causality more closely
Confounding Variables - answer variables that cannot be controlled; may be recognized
before the study is initiated or may not be recognized until the study is in process
Dependent Variables - answer The response behavior, or outcome that is predicted or
explained in research; changes in the dependent variable are presumed to be caused by the
independent variable
Independent Variables - answer Treatment or intervention that is manipulated or varied by
the researcher to cause an effect on the dependent variable
Descriptive Study - answer Design used to identify a phenomenon of interest, identify
variables within the phenomenon, develop conceptual and operational definitions of
variables, and describe variables
Correlational study - answer design used to examine relationships between or among two
or more variables in a single group in a study
quasi-experimental study - answer Types of designs developed to determine the
effectiveness of interventions in quantitative quasi-experimental studies
, sampling - answer Process of selecting a group of people, events, behaviors, or other
elements that are representative of the population being studied.
research purpose - answer Concise, clear statement of the specific goal or aim of the study.
The purpose is generated from the problem.
research problem - answer An area of concern in which there is a gap in the knowledge
base needed for nursing practice. Research is conducted to generate essential knowledge to
address the practice concern, with the ultimate goal of providing evidence-based practice.
hypothesis - answer Formal statement of the expected relationship between two or more
variables in a specific population
null hypothesis - answer Hypothesis stating that no relationship exists between the
variables being studied; a hypothesis used for statistical testing and for interpreting
statistical outcomes
validity/reliability - answer Validity: Extent to which an instrument accurately reflect the
abstract construct being examined
Reliability: Extend to which an instrument consistently measures a concept; the types of
reliability are stability, equivalence, and homogeneity
pre-posttest design - answer quasi experiment where subjects are studied before and after
the study.
mixed method study - answer Both quantitative and qualitative.
randomized control trials - answer Classic means of examining the effects of various
treatments in which the effects of a treatment are examined by comparing the treatment
group with the non-treatment group
updated 2026-2027
Conceptual Definition - answer provides a variable concept with connotative meaning;
established through concept analysis, concept derivation, or concept synthesis
Operational definition - answer Description of how variables or concepts will be measured
or manipulated in a study.
Experimental Study - answer Design that provides the greatest amount of control possible
to examine causality more closely
Confounding Variables - answer variables that cannot be controlled; may be recognized
before the study is initiated or may not be recognized until the study is in process
Dependent Variables - answer The response behavior, or outcome that is predicted or
explained in research; changes in the dependent variable are presumed to be caused by the
independent variable
Independent Variables - answer Treatment or intervention that is manipulated or varied by
the researcher to cause an effect on the dependent variable
Descriptive Study - answer Design used to identify a phenomenon of interest, identify
variables within the phenomenon, develop conceptual and operational definitions of
variables, and describe variables
Correlational study - answer design used to examine relationships between or among two
or more variables in a single group in a study
quasi-experimental study - answer Types of designs developed to determine the
effectiveness of interventions in quantitative quasi-experimental studies
, sampling - answer Process of selecting a group of people, events, behaviors, or other
elements that are representative of the population being studied.
research purpose - answer Concise, clear statement of the specific goal or aim of the study.
The purpose is generated from the problem.
research problem - answer An area of concern in which there is a gap in the knowledge
base needed for nursing practice. Research is conducted to generate essential knowledge to
address the practice concern, with the ultimate goal of providing evidence-based practice.
hypothesis - answer Formal statement of the expected relationship between two or more
variables in a specific population
null hypothesis - answer Hypothesis stating that no relationship exists between the
variables being studied; a hypothesis used for statistical testing and for interpreting
statistical outcomes
validity/reliability - answer Validity: Extent to which an instrument accurately reflect the
abstract construct being examined
Reliability: Extend to which an instrument consistently measures a concept; the types of
reliability are stability, equivalence, and homogeneity
pre-posttest design - answer quasi experiment where subjects are studied before and after
the study.
mixed method study - answer Both quantitative and qualitative.
randomized control trials - answer Classic means of examining the effects of various
treatments in which the effects of a treatment are examined by comparing the treatment
group with the non-treatment group
