3 literature reviews and hypotheses
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3: Literature Reviews and Hypotheses. Literature Review. A literature review is a comprehensive examination of available information that is related to your research topic. Reasons for conducting a literature review. Clarify the research problem and questions Uncover existing studies

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3: Literature Reviews and Hypotheses

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3 literature reviews and hypotheses

3: Literature Reviews and Hypotheses


Literature review

Literature Review

Aliterature review is a comprehensive

examination of available information

that is related to your research topic.


Reasons for conducting a literature review

Reasons for conducting a literature review

  • Clarify the research problem and questions

  • Uncover existing studies

  • Suggest research hypotheses

  • Identify available scales, measures variables and methods

  • Avoid duplication of effort


Lexus nexus

Lexus Nexus


Google scholar

Google Scholar


Key terms

Key terms

  • Variables

    • Gender, Age, Preference, Purchase Likelihood

  • Constructs

    • Satisfaction, Brand Loyalty, Intelligence

  • Hypothesis (-es)

    • “Good moods lead to more purchases.”


  • Conceptualization

    Conceptualization

    Conceptualization refers to the

    development of a model

    that shows variables

    and the hypothesized

    relationships between those variables.


    Relationships and variables

    Relationships and variables

    Independent

    variables

    Dependent

    variables


    Relationships and variables1

    Relationships and variables

    Control Variables

    Confounding Variables


    Process of conceptualization

    Process of Conceptualization

    • Identify Independent and Dependent variables

    • Specify relationships between the variables

    • Develop theory that justifies those relationships

    • Specify “boundary conditions” for relationships, if any

    • Identify any control or confounding variables


    A model of new technology adoption

    A Model of New Technology Adoption

    Income

    +

    +

    Education

    New

    technology

    adoption

    +

    Openness to learning

    -

    Technology discomfort


    Hypothesis

    Hypothesis

    A hypothesis is an empirically

    testable though yet unproven statement

    developed in order to explain

    phenomena.


    Types of hypotheses

    Types of Hypotheses

    • Null

    • Alternate

      • Non-directional vs. Directional

      • Direct (positive) vs. Indirect (negative) relationships


    Examples null hypotheses

    Examples - Null Hypotheses

    • There is no significant difference between the preferences toward specific banking method exhibited by white-collar customers and blue-collar customers.

    • No significant differences exist in requests for specific medical treatments from emergency walk-in clinics between users and nonusers of annual preventive maintenance health care programs.


    Examples alternate hypotheses non directional

    Examples – Alternate Hypotheses, Non-directional

    • There is a significant difference in satisfaction levels reported by Safeway and Lucky shoppers.

    • Significant differences exist between males and females in the number of hours spent online.


    Examples alternate hypotheses directional

    Examples – Alternate Hypotheses, Directional

    • We expect higher satisfaction levels to be reported by Safeway shoppers thanLucky shoppers.

    • We expect to find that males spend significantly more hours online than females.


    Examples alternate hypotheses direct positive

    Examples – Alternate Hypotheses, Direct (positive)

    • More studying is related to higher GPAs.

    • Friendlier salespeople generate higher sales revenues.

    • Increases in advertising lead to higher sales.


    Examples alternate hypotheses indirect negative

    Examples – Alternate Hypotheses, Indirect (negative)

    • Students with high GPAs consume less alcohol than those with lower GPAs.

    • The more pressure to close sales perceived by salespeople, the fewer follow up, “relationship-building” sales calls made.


    Activity formulating research objectives and hypotheses

    ACTIVITY: Formulating Research Objectives and Hypotheses

    • Develop a simple research objective.

    • Formulate a simple hypothesis for your research objective. Specify the following:

      • Positive / Inverse relationship

      • Theory behind the relationships

      • Any boundary conditions for the model

      • Any control or confounding variables/factors


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