Chapter 3: Overview of Quantitative Research

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Last updated: May 8, 2019
Steps in quantitative research
identify the research problemdetermine the purpose of the studyformulate the research questionreview the literaturedevelop a theoretical/conceptual frameworkidentify the study assumptionsacknowledge the limitations of the studyformulate the hypothesisdefine the study variables/termsselect the research designidentify the populationselect the sampleconduct a pilot studycollect the data organize the data for analysisanalyze the datainterpret the findingscommunicate the findingsutilize the findings

research problem
An area where knowledge is needed to advance the practice of nursing

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research question
The specific question that the researcher expects to be answered in a study.

variable
A characteristic or attribute of a person or object that differs among the persons or objects being studied (e.g., age, blood type)

assumptions
Beliefs that are held to be true but have not necessarily been proven; assumptions may be explicit or implicit.

limitations
Weaknesses in a study; uncontrolled variables (extraneous variables). limit generizability in findings

hypothesis
A statement of the predicted relationship between two or more variables.

contains population and variables

independent variable
The “cause” or the variable thought to influence the dependent variable; in experimental research it is the variable manipulated by the researcher.

dependent variable
The “effect”; a response or behavior that is influenced by the independent variable; sometimes called the criterion variable.

directional research hypothesis
contains the direction of the researcher’s expectation of the study results

conceptual definition
A dictionary or theoretical definition of an abstract idea that is being studied by the researcher.

operational definition
The definition of a variable that identifies how the variable will be observed or measured.

research design
The overall plan for gathering data in a research study.

can be classified as qualitative or quantitativecan also be classified as experimental or nonexperimental

population
A complete set of persons or objects that possess some common characteristic of interest to the researcher.

target population
The entire group of people or objects to which the researcher wishes to generalize the findings of a study.also called “universe”

accessible population
The group of people or objects that is available to the researcher for a particular study

sample
A subset of the population that is selected to represent the population and used to make generalizations about the population

pilot study
A small-scale trial run of an actual research study.

data
The pieces of information or facts collected during a research studywho-when-where-what-how

all authors agree on the following number of steps in conducting quantitative research:
all authors agree on the following number of steps in conducting quantitative research: there are no set number of steps

which of the following answers is true concerning quantitative research?
there may be some shifting back and forth between the steps

one of the main purposes of conducting a review of the literature before carrying out a research project is to.

..

one of the main purposes of conducting a review of the literature before carrying out a research project is to determine existing knowledge on the topic

which of the following is true concerning assumptions?
all studies are based on assumptions

the plan for how a study will be conducted is called the…
the plan for how a study will be conducted is called the design

a small group selected from a larger group to participate in a study is known as the.

..

a small group selected from a larger group to participate in a study is known as the sample

at what point in the research process should a statistician be consulted initially?
early in the research project

explain the difference between a conceptual definition and an operational definition of anxiety. operational definition:
a score above 40 on the Nieswiadomy Anxiety Inventory

the final step of the research process, for the researcher, is to
the final step of the research process, for the researcher, is to utilize the findings

which of the following communication mediums is the most efficient means of presenting research findings?
journals

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