EXAM 1 Flashcards
goal of evidence based health care
to enhance recovery and improve the outcome of treatment
4 aspects of evidence based health care
-integration of best evidence
-consideration of each patients needs
-contextualized within clinicians training and expertise
-values patients preference and values
why for is there a need for evidence-based practice
-efficiently optimize treatment outcomes (dont want to do ineffective treatment)
-assessing treatments outcomes
pyramid of quality of the article starting from the bottom
-background information/expert opinion
-case-controlled studies, case series, and case reports
-cohort studies
-randomized controlled trials
-critically-appraised individual articles (article synopses)
-critically-appraised topics (evidence syntheses)
-systematic reviews
effectiveness of a research article
result of interventions applied during routine daily practice (did it work, correlation?)
efficacy of a research article
established through randomized controlled trials (RCTs)
5-step process of evidence based practice searches
1) create a clinically relevant and searchable question from your clinical experience (PICO Question)
2) conduct a database search
3) critically appraise the evidence or articles for quality
4) critically synthesize the evidence
5) assess the outcomes by monitoring the athlete
how to format a PICO question
P = patient and problem
I = intervention (treatment)
C = comparison intervention
O = outcome (what do you want to get out of the intervention)
reliability of articles
consistency in measures attained by people or instruments
-do you obtain the expected outcome every time?
internal reliability
assess the consistency with which a person answers similar survey questions (same survey = same answer)
test-retest reliability
when an instrument produces similar outcomes on repeated trials
interrater reliability
agreement between different people when using or performing an assessment (same results with 2 people measuring the same patient with a goniometer)
intrarater reliability
agreement of a single clinician’s reproduced measures between assessments
-assumes the instrument is reliable
what type of reliability would be examining whether an instrument or test produces similar outcomes with repeated trials?
test-retest reliability
validity
when a reliable measure or observation truly measures the variable of interest
-are we getting the correct answer every time?
face validity
-least robust
-researched merely feels the instrument measures its intended objective
(I think that is what it is.. see it and agree?)
content validity
-not robust
-researcher has others review the tool to establish consensus that it might measure an intended objective
-lacks statistical analysis
example: surveys
criterion validity
-ability of an assessment or instrument to correlate with an established measure
-a novel assessment compared to a gold standard
2 subsets of criterion validity
1) known-groups validity
2) predictive validity
known-groups validity
when an assessment can differentiate between groups with or without a condition
-can we predict the results?
example: rapid vs lab test
predictive validity
when a current assessment is highly correlated with a future criterion
sensitivity
ability of a test to correctly identify a condition
-the expression of how accurately an assessment can identify a problem or illness
specificity
ability of a test to correctly rule out the presence of a condition
-the expression of how accurately an assessment can identify the absence of a problem or illness
true positives
occur when a test correctly identifies a condition