Define Validity
Does the test measure what it claims to be measuring
Define Reliability
The extent to which the method of measurement consistently perfoms
What are the 2 types of examiner reliability?
Intraexaminer & Interexaminer
Define intraexaminer
performance by the same evaluator
Define interexaminer
consistent performance BETWEEN different examiners
-INCREASED by calibration
Define Sensitivity
the ability of a test to correctly identify the presence of a disease
(TIP ‘en’ is found in both sENsitivity and presENce)
Define Specificity
the ability of a test to identify the ABSENCE of a disease
TIP ‘en’ is ABSENT in ‘specificity
What is a t-test
Used to test the hypothetical difference between TWO mean scores
(TIP t stands for two)
Define ANOVA test (analysis of variance)
when comparing the statistical difference between 3 or more mean scores
(TIP there are more than 3 letters in ANOVA)
Define p-value (probability value)
- used when testing hypothesis
- standard of acceptability is 1 out of 20 or a p-value of < 0.05
- a p-value greater than 0.05 will negatively affect study results