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paper 2
research methods
aims, hypothesis, variables
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Cards (8)
aim-
purpose
of an investigation
hypothesis-
prediction
of the
relationship
between
two variables
independent variable- the variable the researcher
manipulates
dependent variable-
the measurement taken by the researcher
extraneous variable- a variable that
could
affect the results if not controlled
confounding variable- extraneous variables that were
not
controlled
and
did
affect the DV
alternate
hypothesis- predicts the
IV
will
have an effect on the DV
null
hypothesis- predicts there is
no relationship
between the
IV
and
DV
directional
(one-tailed) hypothesis- the researcher predicts a
specific direction
of the relationship between the variables
non
directional
(two-tailed) hypothesis- there will be a
difference
but
no
specific
direction,
when there was
no
previous
research
to
indicate
a
direction