Chapter 2: Research Questions, Hypotheses, and Clinical Questions Flashcards
clinical question
the first step in development of an evidence-based practice project
complex hypothesis
contains more than one independent or dependent variable
dependent variable
in experimental studies, the presumed effect of the independent or experimental variable on the outcome
directional hypothesis
hypothesis that specifies the expected direction of the relationship between the independent and dependent variables
hypothesis
a prediction about the relationship between two or more variables
independent variable
the antecedent or the variable that has the presumed effect on the dependent variable
nondirectional hypothesis
indicates the existence of a relationship between the variables but does not specify the anticipated direction of the relationship
population
a well-defined set that has certain specified properties
purpose
that which encompasses the aims or objectives the investigator hopes to achieve with the research, not the question to be answered
research hypothesis (scientific hypothesis)
a statement about the expected relationship between the variables
research question
a key preliminary step wherein the foundation for a study is developed from the research problem and results in the research hypothesis
statistical hypothesis (null hypothesis)
states that there is no relationship between the independent and dependent variables
testability
variables of proposed study that lend themselves to observation, measurement, and analysis
theory
set of interrelated concepts, definitions, and propositions that present a systematic view of phenomena for the purpose of explaining and making predictions about those phenomena
variable
a defined concept
