26 terms

Nursing Research 2

STUDY
PLAY
Causality
things have causes, and causes lead to effects
Research Design
blueprint for conduction a study
Multicausality
presence of multiple causes for an effect
Probability
addresses relative rather than absolute causality
Bias
slant or deviation from the true or expected
Control
having the power to direct or manipulate factors to achieve a desired outcome
Manipulation
form of control used most commonly in experimental or quasi-experimental research
Descriptive Design
used to develop theories, identify problems with current practice, justify current practice, make judgments, or determine what other nurses in similar situations are doing
Comparative Descriptive Design
used to describe variables and to examine differences in variables in two or more groups that occur naturally in a setting
Case Study Design
examines a single unit within the context of its real-life environment
Relational Design
examine relationships between or among two or more variabls in a single group in a quantitative study
Descriptive Relational Design
to describe variables and examine relationships among these variables
Predictive Relational Design
predict the value of one variable based on values obtained for another variable(s)
Model Testing Design
requires that all variables relevant to the model be measured
Quasi-experimental Design
search for knowledge and examination of causality in situations in which complete control is not possible; lack random assignment
Experimental Design
relatively simple and others very complex, have been developed for a varity of studies focused on examining causality
Pretest/Posttest
researcher has a group of subjects who receive experimental treatment (or intervention) and a comparison group of subjects who reveive no treatment (or standard care)
Experimental
consists of pretest/postest, control group, treatment, comparison group, independent & dependent variables, and diagram
Control Group
receives no treatment or placebo
Comparison Group
similar to control, in quasi-experimental, no treatment
Treatment
under control of researcher
Characteristics of Quantitative Design
manipulation controls treatment, control group has not received treatment, randomiaztion procedures are rigidly adhered to in a study
Randomization
procedures used to assign subjects to the experimental and control groups
Elements of Experimental Research
random assignment of subjects to groups, precisely defined independent variable, researcher-controlled manipulation of the intervention or independent variable, reseacher control of situation or setting or comparison grooup, clearly indentified sampling criteria, carefully measured dependent variables, & controlled environment
Qualitative
variables in natural settings; non numerical explanations
Chacteristcs of Qualitative Design
flexible, holistic, understanding not predicting, researcher is involved, and ongoing analysis