Research and Program Evaluation Flashcards
1
Q
parsimony
A
interpreting results in the simplest way
2
Q
occams razor
A
parsimony = interpreting results in the simplest way
3
Q
RA Fisher
A
pioneered hypothesis testing
4
Q
P
A
probability
5
Q
type i
A
reject the null when its true
alpha
6
Q
type ii
A
accept the null when its false
beta
7
Q
increased sample size means…
A
decrease of type i and ii errors
8
Q
t - test
A
two sample groups, use t-table, similar to z table
t score = (Z x 10) + 50
t score M=50 SD=10
9
Q
positively skewed
A
tail to the right
10
Q
negatively skewed
A
tail to the left
11
Q
abscissa
A
x-axis
12
Q
ordinate
A
y-axis
13
Q
range
A
highest - lowest (sometimes plus 1)
14
Q
how does range react to sample size
A
range increases with sample size increase
15
Q
important variance/sd vaues
A
1 SD = 68
2 SD = 95
3 SD = 99
