Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
EBP Review
Review of EBP terms, stats tests
| Term | Definition |
|---|---|
| Independent Variable vs. Dependent Variable | IV: factor believes to bring about a change in the DV; DV: Change believed to result from intervention |
| Data Types: Nominal, Ordinal, Interval, Ratio | Nominal: variables into 2 or more categories (M vs F) Ordinal: classifies and ranks variables based on degree (MMT, GPA) Interval: classifies at predetermined equal interval (0-200, temperature) Ratio: True zero, precise level of measurement |
| Effect Size | the size (magnitude, quantity) of the difference between sample means; allows a stat test to find a difference when one exists |
| Internal Validity | the degree to which the observed differences on the dependent variable are from direct manipulation of IV |
| External Validity | Generalizability of the results outside study |
| Face validity | the assumption of validity based on the appearance of an instrument as a reasonable measure |
| Content validity | the degree to which an instrument measures an intended area (expert judgement) |
| Concurrent Validity | the degreee to which the scores on one test relate to scores on another criterion test (comparison to gold standard) |
| Predictive Validity | the degree a test can predict future performance |
| construct validity | the degree in which a test measures intended hypothetical abstract concept (non observable) |
| Interrater reliability | 2 independent raters find the same result |
| intrarater reliability | one rater multiple trials |
| test-retest reliability | scores on a test are stable over time |
| split-half reliability | reliability of first half of test compared to second (internal consistency) |
| Sensitivity | test's ability to correctly identify individuals who have the dx |
| Specificity | test's ability to identify individuals who do not have dx. |
| Predictive value | test's ability to estimate likelihood of + or - test |
| Cohort Study | prospective following a group of participants for a period of time compared to matched group without condition |
| Case-control study | retrospective; group with condition compared to group without |
| Range (Measures of Variability) | difference between highest score and lowest score |
| Standard deviation | determination of variability of scores from the mean |
| Normal distribution | symmetrical bell curve, 68% of scores fall within 1 SD |
| Alpha level | preselected level of statistical significance (set at .05, .01, expressed as a value of P) |
| Type I Error | Null was rejected when it was true |
| Type II Error | null was not rejected when it was false |
Created by:
jpowley
Popular Standardized Tests sets