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PSYCHOLOGY
RESEARCH METHODS
INFERENTIAL STATISTICS
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Created by
Jess Farley
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What is
inferential statistics
?
Allows us to draw conclusions or making
predictions
about data.
What is the
calculated
value?
Is the
output
of the
test
- whichever
sign
(+ or -) is
fewest
.
To identify the
critical value
, we need the following information:
Is it a
one-tailed
(directional) or
two-tailed
test (non-directional)?
What is the
p value
?
What is the conventional
P value
?
0.05
What is the
n value
?
The number of
participants
, not including those who experience no
change
.
Reject the
null hypothesis
if the calculated value is less than or equal to the
critical value
. (accept the research hypothesis).
What is the
critical value
?
The point at which you stop accepting the
null hypothesis
and start accepting the
research hypothesis
.
Carrots
,
Should
, Come, Mashed, With,
Swede
, Under, Roast, Potato,
Chi-square
,
Sign
, Chi-square,
Mann-Whitney
,
Wilcoxon
,
Spearman's Rho
,
unrelated t-test
, related t-test,
Pearson's r