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29 Cards in this Set

  • Front
  • Back
CI
Confidence interval
d
Cohen’s measure of effect size (standardized mean difference)
df
Degrees of freedom
E
Expected value in a cell of contingency table
Ha or H1
H sub a or H sub one
Alternate hypothesis
H0
H sub zero
Null hypothesis
n
Sample size
N
Population size
O
Observed value in a cell of contingency table
p
p value
Probability of a statistic occurring by chance
r
Sample correlation coefficient
S
Sample standard deviation
S2
s squared
Sample variance
Sp
s sub p
Pooled standard deviation
Sx
s sub x-bar
Sample standard error of the mean; standard deviation of sampling distribution
t
t value
t value from Student’s t distribution
_
x
X-bar
Sample mean; mean of x values
Z
Z score
Standard normal deviate
α
alpha
Significance level (Type I error)
β
beta
Beta (Type II error)
or
Slope of population regression line
χ2
chi-square
Test statistic for contingency table
δ
delta
Mean difference of population observations
Δ
delta (capital delta)
Change
μ
mu
Population mean
σ
sigma
Population standard deviation
σ2
sigma squared
Population variance
σ-
x
sigma sub x-bar
Standard error of the mean
Σ
the sum of (capital sigma)
Sum the values that follow
ρ
rho
Population correlation coefficient