exam i: ch5 Flashcards
research problem
area of concern in which there is a gap in the knowledge needed for nursing practice (drives the need for research)
research purpose
clear, concise statement of the specific goal or focus of a study
research question
clear, concise, interrogative statement that is worded in the present tense; includes 1+ variables, and is expressed to guide the implementation of studies
feasibility
- factors?
how attainable, achievable, and possible is the study
- availability of subjects, facility, faculty, financial status, researcher expertise, equipment
hypothesis
formal statement of the expected relationships between 2+ variables in a specified population
associative hypothesis
- ex?
states that there is a relationship between variables
- if moisture changes, so does ulcer
causal hypothesis
- ex?
cause and effect relationships between variables
- if moisture increases, ulcer will worsen
simple hypothesis
states relationship between 2 variables
complex hypothesis
states relationship between 3+ variables
non-directional hypothesis
relationship exists BUT DOES NOT PREDICT nature/strength of relationship
directional hypothesis
states nature of interaction between 2 variables (positive, negative, weak, strong)
statistical (null) hypothesis
NO difference or relationship between variables
research hypothesis
states what researcher thinks is true, that there is a relationship between the variables
testable hypothesis
clearly predicts relationships among variables, should be realistic, timely for the real world
- the variables are able to measured and manipulated
- defined HOW they will be measured
variables
qualities, properties, or characteristics that are manipulated/measured in research
independent variable
stimulus manipulated to cause effect on dep. variables
dependent variable
outcome/response the researcher wants to predict/explain (changes caused by ind variable)
extraneous variables
- 2 types?
interfere with obtaining clear understanding of relational or causal dynamics
- confounding and environmental
confounding variable
variable not recognized until study starts, cannot be controlled
environmental variable
uncontrolled variable relating to the setting
what is the first step of research
ID an issue or problem