Inferential Statistics (community)

Question 1

Define Validity

Answer 1

Does the test measure what it claims to be measuring

Question 2

Define Reliability

Answer 2

The extent to which the method of measurement consistently perfoms

Question 3

What are the 2 types of examiner reliability?

Answer 3

Intraexaminer & Interexaminer

Question 4

Define intraexaminer

Answer 4

performance by the same evaluator

Question 5

Define interexaminer

Answer 5

consistent performance BETWEEN different examiners

-INCREASED by calibration

Question 6

Define Sensitivity

Answer 6

the ability of a test to correctly identify the presence of a disease
(TIP ‘en’ is found in both sENsitivity and presENce)

Question 7

Define Specificity

Answer 7

the ability of a test to identify the ABSENCE of a disease

TIP ‘en’ is ABSENT in ‘specificity

Question 8

What is a t-test

Answer 8

Used to test the hypothetical difference between TWO mean scores
(TIP t stands for two)

Question 9

Define ANOVA test (analysis of variance)

Answer 9

when comparing the statistical difference between 3 or more mean scores
(TIP there are more than 3 letters in ANOVA)

Question 10

Define p-value (probability value)

Answer 10

• 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