All the postings should be APA style. Three paragraphs with three sentences Name five continuous, five discrete, and five categorical variables and identify which, if any are dichotomous and why?

profileFAST ANSWERS_PHD
NRweek31Polit10e_PPT_Ch3.ppt

Copyright © 2012 Wolters Kluwer Health | Lippincott Williams & Wilkins

Chapter 3

Key Concepts and Steps in Qualitative and Quantitative Research

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Question

Tell whether the following statement is true or false:

A variable is a characteristic or quality that takes on different values.

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Answer

True

A variable is a characteristic or quality that takes on different values.

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Question

Tell whether the following statement is true or false:

The dependent variable is the presumed cause of the problem.

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Answer

False

The independent variable is the presumed cause (of a dependent variable). The dependent variable is the presumed effect (of an independent variable).

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Variable

A characteristic or quality that takes on different values, that is, something that varies from one person to the next

Examples:

  • Blood type
  • Weight
  • Length of stay in hospital

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Types of Variables

  • Continuous (e.g., height)
  • Discrete (e.g., number of children)
  • Categorical (e.g., marital status)
  • Dichotomous (e.g., gender)
  • Attribute variable versus active variable

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Types of Variables (cont.)

Independent variable—the presumed cause (of a dependent variable)

Dependent variable—the presumed effect (of an independent variable)

Example: Smoking (IV)  Lung cancer (DV)

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Question

Tell whether the following statement is true or false:

Conceptual definition is the operations a researcher must perform to collect the desired information.

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Answer

False

Conceptual definition: the abstract or theoretical meaning of a concept being studied

Operational definition: the operations (measurements) a researcher must perform to collect the desired information

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Definitions of Concepts and Variables

  • Conceptual definition: the abstract or theoretical meaning of a concept being studied
  • Operational definition: the operations (measurements) a researcher must perform to collect the desired information

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Relationships

Relationship: a bond or connection between variables

  • Cause-and-effect (causal) relationship (e.g., cigarette smoking and lung cancer)
  • Functional (associative) relationship (e.g., gender and life expectancy)

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Major Classes of Quantitative Research

Experimental research

Researchers actively introduce an intervention or treatment.

Nonexperimental research

Researchers collect data without intervening or introducing treatments.

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Major Research Traditions in Qualitative Research

  • Grounded theory research
  • Phenomenological research
  • Ethnographic research

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Question

What is the first phase in a quantitative study?

A. Conceptual phase

B. Design and planning phase

C. Empirical phase

D. Analytic phase

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Answer

A

The phases in a quantitative study are:

  • Phase 1: Conceptual phase
  • Phase 2: Design and planning phase
  • Phase 3: Empirical phase
  • Phase 4: Analytic phase
  • Phase 5: Dissemination phase

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Phases in a Quantitative Study

  • Phase 1: Conceptual phase
  • Phase 2: Design and planning phase
  • Phase 3: Empirical phase
  • Phase 4: Analytic phase
  • Phase 5: Dissemination phase

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Major Steps in a Quantitative Study

  • Phase 1: Conceptual phase

Formulating the problem

Reviewing related literature

Undertaking clinical fieldwork

Defining the framework and developing
conceptual definitions

Formulating hypotheses

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Major Steps in a Quantitative Study (cont.)

Selecting a research design

Developing intervention protocols

Identifying the population

Designing the sample plan

Phase 2: Design and planning phase

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Major Steps in a Quantitative Study (cont.)

  • Phase 2: Design and planning phase (cont.)

Specifying methods to measure research
variables and collect data

Developing methods to protect
human/animal rights

Finalizing and reviewing the research plan

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Major Steps in a Quantitative Study (cont.)

  • Phase 3: Empirical phase

Collecting data

Preparing data for analysis

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Major Steps in a Quantitative Study (cont.)

  • Phase 4: Analytic phase

Analyzing the data

Interpreting results

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Major Steps in a Quantitative Study (cont.)

  • Phase 5: Dissemination phase

Communicating the findings

Utilizing findings in practice

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Activities in a Qualitative Study

Conceptualizing and planning the
study

Conducting the study

Disseminating the findings

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Research Journal Articles

Summarize the context, design, and results of a study; the primary method of disseminating research evidence

*

Copyright © 2017 Wolters Kluwer Health | Lippincott Williams & Wilkins

Content of Journal Articles

  • Abstract
  • Introduction
  • Methodology
  • Results
  • Discussion

*