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Chapter 2 Lecture
Research Techniques: For the Health Sciences
Fifth Edition
© 2014 Pearson Education, Inc.
Developing the Research Proposal
Agyen Kwaku James
Developing the Research Proposal
• To be successful, the researcher must have a detailed plan as well as an overall conceptualization of the problem.
• Research Proposal – Formulation of a research proposal requires
the investigator to • specify the problem and related components • elaborate on the significance of the
research to the health profession • review related literature • outline the appropriate methodology within
an equitable time frame © 2014 Pearson Education, Inc.
Selection of the Problem
• One of the most difficult tasks confronting the beginner is to select a researchable problem.
• Tackling an exotic issue often makes the problem either too broad or too narrow in scope.
• Many factors should be considered in the ultimate selection.
© 2014 Pearson Education, Inc.
Selection of the Problem (cont'd)
• Factors involved in the selection (Bailey, 1994): – Interest: The researcher should be interested
in pursuing the problem, have the appropriate background and career interests, and develop the required skills
– Operability: The researcher should have both the resources and the time available to complete the study
– Scope: The study must be manageable and relevant in terms of conclusions and inferences
– Theoretical and practical values: The research should contribute to the health field and be beneficial to health practitioners
© 2014 Pearson Education, Inc.
Selection of the Problem (cont'd) – Health paradigm: The school of thought or
model employed by the researcher – Values of the researcher: The researcher
should be aware of his or her own values and how they may prejudice or bias the study
– Research methodology: The researcher must be certain that hypotheses are well written and that appropriate criteria are used to interpret the data
– Reactivity: The method of data collection should be scrutinized for reactivity of the participants, or the Hawthorne effect
© 2014 Pearson Education, Inc.
Selection of the Problem (cont'd)
– Unit of analysis: The researcher must ascertain if the unit of analysis is an individual or an entire population
– Time frame: The researcher must have a feasible amount of time to conduct the study
– Budget: The researcher should write a budget and include such things as costs, travel, and postage
© 2014 Pearson Education, Inc.
Sources of Problems
• The problem must be researchable. • At the outset, look around at the
immediate environment; it teems with researchable problems.
• Many problems lend themselves to investigation.
• Textbooks, periodicals, seminar reports, and conference proceedings can introduce the mind into the research world.
• Indices and abstracts provide valuable sources for research ideas.
© 2014 Pearson Education, Inc.
Sources of Problems (cont'd)
• University faculty can be the impetus for health research.
• Consultation with experienced faculty
is desirable to check operability, significance, and value.
© 2014 Pearson Education, Inc.
Statement of the Problem
• Offers focus and direction in the research proposal.
• It can be written either as a question or as a declarative statement.
• It must be written clearly and concisely. • Each word of the statement should be definitive,
indispensable, and expressive. • It should be such that it can be read and
understood by anyone without the researcher's presence.
© 2014 Pearson Education, Inc.
Research Questions • Should be specific to the topic and
population. • Parameters are established within the
statement of the problem. • The ideas of the researcher must be
clearly stated. • Clichés, colloquialisms, slang, and jargon
obscure thought and should be avoided when research is edited.
• Sometimes the use of a research question indicates that the research project is not experimental and does not lend itself to the formulation of hypotheses.
© 2014 Pearson Education, Inc.
Components Comprising the Setting of the Problem • Even with focus, direction, and a
means to stay on course, further delineation may be necessary.
• It is important to indicate what limitations, delimitations, and assumptions surround the problem, as well as to define terms that may be new to the reader.
• Assumptions made, if any, must be specified.
© 2014 Pearson Education, Inc.
Components Comprising the Setting of the Problem (cont'd)
• Limitations – The boundaries of the problem
established by factors or people other than the researcher.
• Delimitations – Deal with the boundaries but are set by
the researcher. – An answer to the question, What are the
precise limits of the problems? – Rule out the peripheral considerations,
allowing the researcher to concentrate on the central effort. © 2014 Pearson Education, Inc.
Components Comprising the Setting of the Problem (cont'd) • Assumptions
– Condition that is taken for granted and without which the research effort would be impossible.
– Believed to be a fact but cannot be verified as one.
• Definition of Terms – Many research studies employ terms
that may have special meaning to the study itself.
– Researchers must define each term as it relates to the project at hand. © 2014 Pearson Education, Inc.
Formulation of Hypotheses • Hypotheses
– May be included in components that comprise the setting of the problem but is considered separately because of its significance to the problem.
• A hypothesis is a:
– logical supposition – reasonable guess – suggested answer to a problem statement or
research question • A hypothesis provides further direction for the
research effort by setting forth a possible explanation for an occurrence.
© 2014 Pearson Education, Inc.
Formulation of Hypotheses (cont'd)
• There are two types of approaches appropriate for developing hypothesis statements: – Inductive Reasoning
• A generalization is made based on relationships that have been observed.
– Deductive Reasoning • The researcher begins with a theoretical tenet and
then makes a prediction as to how it can be applied to a specific situation.
© 2014 Pearson Education, Inc.
Formulation of Hypotheses (cont'd) • Generally, a hypothesis should:
1. be stated clearly and concisely 2. express the relationship between two
or more variables 3. be testable
• The purpose of testing a hypothesis is to ascertain the probability that it is suggested by fact.
• The acceptance or rejection of a hypothesis is based on fact rather than on a preconceived bias.
© 2014 Pearson Education, Inc.
Research Hypotheses
• Researchers may state a scientific or research hypothesis as a prediction of the outcome of the test–this is called a research hypothesis
© 2014 Pearson Education, Inc.
Null Hypotheses • Hypotheses are rephrased into a negative
or null form when it is difficult to obtain unequivocal support for them.
• The null hypothesis asserts that minor
differences between the variables can occur because of chance errors, and thus are not significant differences.
• Testing of a null hypothesis reveals either
that some force or factor has resulted in a statistical difference or that it has not resulted in such a difference.
© 2014 Pearson Education, Inc.
Null Hypotheses (cont'd) • When rejected, the researcher will probe
deeper into the problem to discover what has caused the difference and how.
• If the researcher rejects a null hypothesis, then the research hypothesis is accepted.
• If the research hypothesis is accepted,
then the next step is to explore the dynamics underlying the differences.
• The research effort should not stop with rejection of the null hypothesis.
© 2014 Pearson Education, Inc.
Significance and Justification of the Problem • In a research proposal, the researcher
has an opportunity to explain why the research effort is so important.
• The relevance needs to be stated in a way that the layperson will comprehend.
• The researcher must be able to justify the study by explaining how the project will further knowledge and extend theory.
• The researcher should be very familiar with and able to articulate any opposing viewpoints through a thorough review and critical analysis of the literature.
© 2014 Pearson Education, Inc.
Résumé of Related Literature
• The more one knows about similar research, the more likely it is the study can be conducted in an intelligent, comprehensible fashion.
• Everything reviewed should serve as an aid in confronting the problem.
• Similar studies should be checked for: – population and sampling techniques – study design, including data-gathering
instruments – variables measured – extraneous variables that influenced findings – recommendations for future research – findings and conclusions
© 2014 Pearson Education, Inc.
Résumé of Related Literature (cont'd)
• The researcher should commence a literature review early so that he or she can: – define the problem statement – develop components that comprise
the setting of the problem – justify the study – plan the design
© 2014 Pearson Education, Inc.
Methodology or Proposed Research Procedures • A detailed research plan must be
outlined to include: – sampling techniques – methodological steps – instruments employed – administration of instruments – data required – method of analyzing data
© 2014 Pearson Education, Inc.
Budget Considerations
• Researchers should review such expenditures as: – subject payments – duplication of materials – Postage – Travel – software
© 2014 Pearson Education, Inc.
Time Schedule & Research Proposal Checklist • Time Schedule
– An invaluable device to assist in the budgeting of time and energy.
– Time is limited and academic deadlines are rarely negotiable.
– Dividing the research effort into operable portions with realistic dates also helps organization and reduces procrastination.
• Research Proposal Checklist
– The research proposal is the initial step in developing the research project.
– The investigator should check each area. © 2014 Pearson Education, Inc.