Chapter 3 Flashcards
Conceptual definition
Presents the abstract and theoretical meaning of concepts under a study.
Ex: Caring can be classified into five classes of conceptual design (human trait, moral imperative, an affect, an interpersonal relationship, a therapeutic intervention). The researchers undertaking a study of caring need to clarify which conceptual definition they have adopted.
Qualitative studies: conceptual definitions of key phenomena may be the major end product, reflecting an intent to have the meaning of concepts defined by those being studied.
Quantitative studies: researchers must define concepts at the outset because they must decide how the variables will be observed and measured.
Operational definition
Specifies what the researchers must do to measure the concept and collect needed information
Variables differ in the ease with which they can be operationalized. Ex; Weight is easy to operationalize- round to the 0.5 lb or to the 1gm.
Most variables can be measured in different ways and researchers must choose the one that best captures the variable as they conceptualize them. Ex: anxiety; can be defined in terms of both physiologic and psychological functioning. to emphasize the physiologic aspect, the operational definition might involve the measurement of salivary cortisol. If researchers conceptualized anxiety as a psychological state, the operational definition must be people’s scores on a self-reported test.
Definitional precision is important for communicating exactly what concepts mean within a study.
Operationalizing a concept is often a two-part process that involves deciding
1) how to accurately measure the variable
2) how to represent it in analysis
Data
pieces of information obtained in a study.
Quantitative: researchers define their variable and collect relevant data from study participants. Collect primarily QUANTITATIVE DATE- data in numeric form.
QUALITATIVE DATA: narrative descriptions.. narrative information can be obtained by having conversations with participants, making detailed notes about how people behave, or obtaining narrative records (ex. diaries). Contains rich narrative descriptions of participants’ emotional states.
Relationships
Bond or connection between phenomena.
Both quantitative and qualitative studies examine relationships but in different ways.
Quantitative: researchers examine the relationship between the independent and dependent variables. Researchers ask whether variations in the dependent variable (the outcome) is systematically related to variations in the independent variable.
Relationships are usually expressed in quantitative terms (more than, less than, etc).
Each statement expresses a predicted relationship between the dependent variable the measurable independent variable.
Can also address other types of relationships: does a relationship exist? wha tis the direction of the relationship between variables? how strong is the relations between variables? what is the nature of the relationship between variables?
Causal relationship
Cause and effect.
Within the positivist paradigm, natural phenomena have antecedent causes that are presumably discoverable.
Many quantitative studies are cause-probing.
Functional (associative) relationships
Relationship between variables in present, but one does not cause the other.
Correlational
Study of Patterns
Present in qualitative researcher.
Qualitative researchers seek patterns of association as a way to illuminate the underlying meaning and dimensionality of phenomena.
Patterns of interconnected themes and processes are identified as means of understanding the whole.
Experimental Research
Researchers actively introduce an intervention or treatment- most often, to address Therapy questions
Explicitly cause-probing- they test whether an intervention causes changes in the dependent variable.
Offer the possibility of greater control over confounding influences than nonexperimental studies, so causal inferences are more plausible.
Nonexperimental research
Researchers are bystanders- collect data without intervening.
Sometimes explore causal relationships, but the resulting evidence is usually less conclusive than experimental research.
Clinical trial
experimental study in medical research
Observational study
nonexperimental study in medical research
Randomized controlled trial
Particular type of clinical trial
Qualitative Descriptive Research
The majority of qualitative nursing studies can be described as qualitative descriptive research.
Rooted in research traditions that originated in anthropology, sociology, and psychology- prominent in qualitative nursing research
Grounded Theory
Researched rooted in sociology.
Seeks to describe and understand the key social psychological processes that occur in social settings.
Most grounded theory studies focus on developing social experience- the social and psychological processes that characterize an event or episode.
A major component is the discovery of not only the basic social psychological problem, but also a core variable that is central in explaining what is going on in that social scene.
Strive to generate explanations of phenomena that are grounded in reality.
Phenomenology
Concerned with the lived experience of humans.
Approach to thinking about what life experiences of people are like and what they mean.
The phenomenologic researchers ask the questions: What is the essence of this phenomenon as experienced by these people? What is the meaning of the phenomenon to those who experience it?