Symbols

Question 1

Σ

Answer 1

Sum

Answer 2

Hat / circumflex. Used above a parameter to denote an estimate.

Question 3

α

Answer 3

Alpha. Probability of Type I error

Question 4

β

Answer 4

Beta. Probability of Type II error; or population regression coefficient

Question 5

CI

Answer 5

Confidence interval

Question 6

CV

Answer 6

Coefficient of variation

Question 7

Δ

Answer 7

Delta / change

Question 8

δ

Answer 8

Delta / true sampling error

Question 9

ε

Answer 9

Epsilon / True experimental error

Question 10

H0

Answer 10

Null hypothesis

Question 11

H1

Answer 11

Alternate hypothesis

Question 12

HR

Answer 12

Hazards ratio

Question 13

κ

Answer 13

Kappa statistic

Question 14

μ

Answer 14

Population mean

Question 15

n

Answer 15

Size of a subsample

Question 16

N

Answer 16

Total sample size

Question 17

OR

Answer 17

Odds ratio

Question 18

P

Answer 18

Statistical probability

Question 19

χ²

Answer 19

Chi squared test

Question 20

r

Answer 20

Bivariate correlation coefficient

Question 21

R

Answer 21

Multivariate correlation coefficient

Question 22

RR

Answer 22

Relative risk

Question 23

ρ

Answer 23

Rho / population coefficient

Question 24

SD

Answer 24

Standard deviation of a sample

Question 25

SE

Answer 25

Standard error

Question 26

SEM

Answer 26

Standard error of the mean

Question 27

ρ

Answer 27

Mann-Whitney U (Wilcoxon) test

Question 28

z

Answer 28

Z score

Question 29

F

Answer 29

F-statistic used for ANOVA

Question 30

D

Answer 30

Cohen’s D, used to demonstrate the effect size in t-tests