Exam 1 Flashcards
(47 cards)
when did nursing research begin and with who?
in the 19th century with florence nightingale
characteristics of quantitative research
- formal, objective, rigorous, systematic process for generating information
- describes new situations, events, or concepts
- examines relationships between variables
- determines the effectiveness of treatments
types of quantitative research
- descriptive
- correlational
- quasi-experimental
- experimental
descriptive research
- exploration and description of phenomena in real-life situations
- helps identify relationships, but no cause and effect
correlational research
- looks at relationship between two or more variables
- explains what is seen, no cause and effect
quasi-experimental research
- examines cause and effect relationships
- less control by researcher, but some control
- samples are not random
experimental research
- controlled manipulation of at least one independent variable
- random assignment of groups
- researcher controls the situation and setting
- looks at cause and effect
basic research
- pure research
- conducted for the pursuit of knowledge
applied research
- attempts to solve real problems
- applies findings in the real world on real patients
conceptual variable
provides a variable or concept with theoretical meaning
operational variable
how the variable can be measured or used as an intervention implemented in a study
steps of the research process
- problem
- purpose(s)
- hypothesis
- literature review
- framework
- ethics - human study participant rights
- design
- sampling
- data collection
- statistics
- findings
- dissemination of findings
- EBP
difference between reliability and validity
- reliability = consistency of the tool
- validity = does the tool measure what it is supposed to?
in nursing, what P value do we want?
one that is equal to 0.015 or less
PICOT
Population
Intervention
Comparison
Outcome
Timing
advantages of experimental designs
more controlled and increased internal validity
internal validity
are study findings accurate or are they the result of extraneous variable?
external validity
concerned with extent to which study findings can be generalized beyond the sample study
causality
there is a cause and effect relationship between the variables
multi-causality
a cause and effect relationship between interrelating variables
types of hypotheses
- associative vs. causal
- simple vs. complex
- nondirectional vs. directional
- null vs. research
associative vs. causal hypotheses
- associative = relationship between variable (apples and oranges are both fruits)
- causal = cause and effect relationship between variables (reusing needles after sterilizing)
simple vs. complex hypotheses
- simple = states the relationship (associative or causal) between two variable
- complex - states the relationships (associative or causal) among three or more variables
nondirectional vs. directional hypotheses
- nondirectional = relationship exists between variables, but hypothesis does not predict nature of relationship
- directional = nature (positive or negative) of interaction between two or more variables is stated