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Qualitative, Quantitative & Mixed Method

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Hypothesis: An educated guess about the possible relationship between two or more variables. Hypothesis Variable: A factor or element that can change in observable and measurable ways. Variable Operational Definition: A full description of exactly how variables are defined, how they will be manipulated, and how they will be measured. Operational Definition

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A theory is a based upon a hypothesis and backed by evidence A theory presents a concept or idea that is testable In science, a theory is not merely a guess A theory is a fact-based framework for describing a phenomenon In psychology, theories are used to provide a model for understanding human thoughts, emotions and behaviors

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A hypothesis is a tentative statement about the relationship between two or more variables A hypothesis is a specific, testable prediction about what one expects to happen in a research study

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A psychological theory has two key components: (1) it must describe a behavior and (2) make predictions about future behaviors.

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Quantitative Qualitative Mixed Methods

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Postpositive claims: Cause & effect, measurement & observations, tests of theories, etc. Experiments Surveys Predetermined instruments that yield statistical data

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Tests or verifies theories or explanations Identifies variables to study Observes & measures information numerically Uses unbiased approaches Employs statistical procedures

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Advocacy Phenomenology Grounded Theory Ethnography Case Study Narrative

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Open-ended questions Emerging approaches Text or image data Focuses on a single concept Brings personal values into the study Studies the context or setting Makes interpretations

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Pragmatic knowledge claims Sequential, concurrent and transformative

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Both open-ended and closed-ended questions Both emerging and predetermined approaches Both qualitative & quantitative data and analysis Develops a rationale for mixing Integrates the data at different stages of inquiry Presents visual pictures Employs the practices of both

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The abstract is a brief summary of the research article Description

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An introduction is the first passage in a scholarly research study The authors announce a problem They justify why it needs to be studied The type of problem or question will vary depending on the approach: qualitative, quantitative, or mixed methods

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The purpose statement indicates why you want to do the study & what you intend to accomplish Qualitative statements contain the important elements of the research Quantitative statements focus on relating & comparing variables or constructs Mixed Methods will convey both qualitative & quantative statements

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Qualitative research state questions not objectives or hypotheses Quantitative research questions are interrogative statements or questions that the researcher intends to answer Mixed Methods need to have both qualitative & quantitative hypotheses or questions

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Usually presented in a separate section of the research article It uses previous studies to support, justify, and demonstrate the need for the current study

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Quantitative researchers use theory to provide an explanation or prediction about the relationship of the variables Qualitative researchers use theory as a broad explanation Mixed Method researchers use theory either inductively or deductively

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Researchers define terms so that readers are able to understand their precise meaning Researchers might define terms with different intent No one format exists for defining terms

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Researchers will note the limitations of their studies Small population sample Temporal limitations Cultural variables Etc.

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Ways in which the research study adds to the scholarly research and literature in the field Ways in which the research study helps to improve practice Ways in which the research study will improve policy

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Surveys Experiments Population & sample Instrumentation Variables Data Analysis Participants Threats to validity

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Researchers will explain the results of their study Then will discuss the implications, limitations, suggest, future research

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Find the following in each article: Abstract Approach Introduction Theory Purpose Statement Methods Significance Results Discussion