Chapter Two: Research Ideas and Hypotheses

The Research Idea You find a research idea when you find a gap in the current knowledge or an unanswered question that interests you.

Characteristics of Good Research Ideas The most important characteristic of a good research idea is that it is testable.

Characteristics of Good Research Ideas A second characteristic of the good research idea is that your chances for success are increased when your view of nature approximates reality as closely as possible. When reality is approximated there is a good likelihood of success.

Sources of Research Ideas Nonsystematic Sources

Sources of Research Ideas Nonsystematic Sources Include those occurrences that give us the illusion that a research idea has dropped out of the sky.

Sources of Research Ideas Nonsystematic Sources Inspiration

Sources of Research Ideas Nonsystematic Sources Inspiration Ideas that pop into one’s mind from (seemingly) nowhere. Inspiration usually comes more easily after one has been working on a particular problem for some time.

Sources of Research Ideas Nonsystematic Sources Serendipity

Sources of Research Ideas Nonsystematic Sources Serendipity Refers to those situations where we look for one phenomenon but find another.

Sources of Research Ideas Nonsystematic Sources Everyday Occurrences

Sources of Research Ideas Nonsystematic Sources Everyday Occurrences The people and/or situations one encounters daily provide some of the best possibilities for research.

Sources of Research Ideas Nonsystematic Sources (recap) Inspiration Serendipity Everyday Occurrences

Sources of Research Ideas Systematic Sources

Sources of Research Ideas Systematic Sources Research ideas from systematic sources are carefully organized and logically thought out.

Sources of Research Ideas Systematic Sources Past Research

Sources of Research Ideas Systematic Sources Past Research A careful survey of the research done in a specific area will highlight any knowledge gaps or unanswered questions in that area.

Sources of Research Ideas Systematic Sources Past Research A careful survey of the research done in a specific area will highlight any knowledge gaps or unanswered questions in that area. A failure to replicate a previous finding raises additional questions that only continued research will be able to answer.

Sources of Research Ideas Systematic Sources Theory

Sources of Research Ideas Systematic Sources Theory The guidance function of a theory provides an endless panorama of projects for researchers who take the time and trouble to master the theory and understand its implications.

Sources of Research Ideas Systematic Sources Classroom Lectures

Sources of Research Ideas Systematic Sources Classroom Lectures Lectures often include a systematic review of the relevant literature on a particular topic and as such are a good source of research ideas.

Developing a Research Question

Regardless of the source of your research idea, your first goal should be to turn it into a question.

Surveying the Psychological Literature

Selection of Index terms

Surveying the Psychological Literature Selection of Index terms Thesaurus of Psychological Index Terms

Surveying the Psychological Literature Selection of Index terms Thesaurus of Psychological Index Terms Is a collection of index terms taken from abstracts of all published psychological research.

Surveying the Psychological Literature Computerized Searches of the Literature

Surveying the Psychological Literature Computerized Searches of the Literature Your next step is to familiarize yourself with the computerized research databases (such as PsycINFO) available at your school. Enter your index terms into the search box of the database.

Surveying the Psychological Literature Manual Searches of the Literature

Surveying the Psychological Literature Manual Searches of the Literature If your school does not subscribe to any electronic research databases you will have to do a manual literature search.

Surveying the Psychological Literature Manual Searches of the Literature If your school does not subscribe to any electronic research databases you will have to do a manual literature search. Psychological Abstracts

Surveying the Psychological Literature Manual Searches of the Literature If your school does not subscribe to any electronic research databases you will have to do a manual literature search. Psychological Abstracts Is a monthly journal that provides essentially the same information that a PsycINFO search. Write down the relevant article references and locate the journal(s) in the library.

Surveying the Psychological Literature Obtaining the Relevant Publications

Surveying the Psychological Literature Obtaining the Relevant Publications You need to assemble all of your original source materials in one place.

Surveying the Psychological Literature Obtaining the Relevant Publications You need to assemble all of your original source materials in one place. Interlibrary loan

Surveying the Psychological Literature Obtaining the Relevant Publications You need to assemble all of your original source materials in one place. Interlibrary loan If your library does not have the relevant journals or books, you can request them through interlibrary loan. There is sometimes a small fee for this service and the amount of time it takes to get your materials will vary.

Surveying the Psychological Literature Obtaining the Relevant Publications You need to assemble all of your original source materials in one place. Requests for reprints

Surveying the Psychological Literature Obtaining the Relevant Publications You need to assemble all of your original source materials in one place. Requests for reprints You can write or the author of a journal article directly and ask for a copy of the article (reprint). Many colleges and universities have searchable faculty databases. This makes it very easy to the author and ask for a reprint.

Surveying the Psychological Literature Integrating the results of the Literature Search

Surveying the Psychological Literature Integrating the results of the Literature Search This is the process of making sense of the materials you have assembled.

Formulating the Research Hypothesis

A research hypothesis is simply a formal statement of your research question, taking into account what you learned from searching the literature.

Formulating the Research Hypothesis A research hypothesis is simply a formal statement of your research question, taking into account what you learned from searching the literature. The research or experimental hypothesis is our prediction about the relation that exists between the independent variable that we are going to manipulate and the dependent variable that we will record.

Characteristics of the Research Hypothesis

Types of Statements

Characteristics of the Research Hypothesis Types of Statements Synthetic Statements

Characteristics of the Research Hypothesis Types of Statements Synthetic Statements Are those statements that can be either true of false (e.g. “Abused children have lower self-esteem”).

Characteristics of the Research Hypothesis Types of Statements Analytic Statements Are those statements that are always true (e.g. I am making an “A” or I am not making an “A”).

Characteristics of the Research Hypothesis Are those statements that are always false (e.g. I am making an “A” and I am not making an “A”). Types of Statements Contradictory Statements

Characteristics of the Research Hypothesis Types of Statements Synthetic Analytic Contradictory

Psychological Detective Which type of statement is best suited for use in our research hypothesis?

Psychological Detective Which type of statement is best suited for use in our research hypothesis? Synthetic Statement

Characteristics of the Research Hypothesis General Implication Form

Characteristics of the Research Hypothesis General Implication Form you must be able to state (or restate) the research hypothesis in general implication (“if…then”) form.

Characteristics of the Research Hypothesis General Implication Form you must be able to state (or restate) the research hypothesis in general implication (“if…then”) form. The “if” portion of such statements refers to the independent variable manipulation(s) that we are going to make, whereas the “then” portion of the statement refers to the dependent variable changes we expect to observe.

Characteristics of the Research Hypothesis Principle of falsifiability

Characteristics of the Research Hypothesis Principle of falsifiability When an experimental hypothesis is stated in general implication form, it is possible that a result is true (supported by the results of the study) or false (not supported by the results of the study).

Characteristics of the Research Hypothesis Types of Reasoning

Characteristics of the Research Hypothesis Types of Reasoning Inductive Logic

Characteristics of the Research Hypothesis Types of Reasoning Inductive Logic Involves reasoning from specific cases to general principles. Inductive logic is the process that is involved in the construction of theories.

Characteristics of the Research Hypothesis Types of Reasoning Deductive Logic

Characteristics of the Research Hypothesis Types of Reasoning Deductive Logic Involves reasoning from general principles to specific conclusions or predictions.

Characteristics of the Research Hypothesis Types of Reasoning Inductive Logic Deductive Logic

Characteristics of the Research Hypothesis Directional versus Nondirectional Research Hypotheses

Characteristics of the Research Hypothesis Directional versus Nondirectional Research Hypotheses Directional Hypotheses

Characteristics of the Research Hypothesis Directional versus Nondirectional Research Hypotheses Directional Hypotheses Specify the outcome of the experiment.

Characteristics of the Research Hypothesis Directional versus Nondirectional Research Hypotheses Nondirectional Hypotheses

Characteristics of the Research Hypothesis Directional versus Nondirectional Research Hypotheses Nondirectional Hypotheses Do not predict the exact directional outcome of an experiment, but only that the groups we are testing will differ.