FINAL 1 Flashcards
A process of information exchange in which participants are provided with understandable information needed to make a participation decision; full disclosure of the risks and benefits, and the assurance that withdrawal is possible at any time without consequences. This process begins with recruitment and ends with a signed agreement document.
Informed consent
According to the Belmont Report, the consent process contains 3 components:
- information
- comprehension
- voluntariness
This standard requires that the extent and nature of the information provided be sufficient for a reasonable person to decide whether to participate.
“reasonable subject” standard
Reporting as much information about research as is known at the time without threatening the validity of the study. This practice allows the subject to make an informed decision as to whether to participate.
Full disclosure
A statistical method of aggregating the results of quantitative studies so an overall effect size can be evaluated.
Meta-analysis
A methodology that synthesizes quantitative, qualitative, and comparative effectiveness research to provide a comprehensive understanding of the human condition.
Integrative review
The development of overarching themes about the meaning of human events based on a synthesis of multiple qualitative studies.
Qualitative meta-synthesis
Research-based recommendations for practices that are graded as mandatory, optional, or supplemental and that may be stated as standards of practice, procedures, or decision algorithms.
Practice guidelines
Highly structured studies of cause and effect applied to determine the effectiveness of an intervention. The “gold standard” for EBP because they provide convincing support for the value of a treatment.
Experimental design
Characteristics of an experimental design:
- the cause must precede the effect in time
- rival explanations for the outcome must be ruled out
- the influence of the cause on the effect must be demonstrated
Strengths of experimental designs
- considered the strongest evidence for practice
- these designs are the only ones that allow a definitive conclusion about cause and effect; ideal for testing the effectiveness of interventions
- recognized and valued by other disciplines
- generally understood by the public and patients
Limitations of experimental designs
- complex and difficult to carry out
- require substantial resources (time, skill, and access)
- many aspects of healthcare cannot be manipulated
- increasing control = artificial; generalizability of the findings may be limited
Studies of cause and effect similar to experimental designs but using convenience samples or existing groups to test interventions.
Quasi-experimental designs
Strengths of quasi-experimental designs
- more feasible than true experiments in an applied setting
- true experiments may not be feasible or ethical; it may be impossible to deliver an intervention to some in a group and not others
- introduce a level of control that reduces the effect of extraneous variables
- accessible subjects can be used for the study so that larger samples may be obtained
Limitations of quasi-experimental designs
- inappropriate to draw conclusions about cause and effect w/out random assignment to groups
- groups may not be equivalent in characteristics, such that extraneous variables are introduced
- rival explanations for the outcome exist and may weaken confidence in the results