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paper 2
research methods
inferential statistics
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Created by
lydia🇵🇱
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Cards (15)
5%
level balances out the risk of making
type 1 errors
and
type 2 errors
type 1 error is when the psychologist
accepts
the
experimental hypothesis
and
rejects
the
null hypothesis
when the results were actually due to
chance
type 2 error is when the psychologist
accepts
the null hypothesis and
rejects
the
experimental
hypothesis when the results were actually due to the
IV
interval data-
numbers
on a
fixed scale
ordinal data-
rankings
/
ratings
nominal data-
categories
nominal, test of difference, unrelated
chi-
squared
nominal, test of difference, related
sign test
ordinal, test of difference, unrelated
mann-whitney
ordinal, test of difference, related
wilcoxon
ordinal, relationship
spearman’s rho
interval, test of difference, unrelated
unrelated t-test
interval, test of difference, related
related t-test
interval, relationship
pearson’s
r
using critical value tables
one
tailed/
two
tailed
number
of
participants
(
N
)
level
of
significance
(
p
<
0.05
)
whether the
calculated
value is
greater
than/
smaller
than or
equal
to the
critical
value