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psychology
research methods
aims and hypotheses
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Cards (21)
What is an aim?
A
goal
or
objective
of research
what do aims take the form of?
general statements covering the
topic
/
theory
/
concept
that will be investigated
what do aims identify?
purpose
of research
what do aims outline?
what
is being studied and what the
study
is tying to
achieve
what is a hypotheses?
a
testable
statement written as a
prediction
of what the researcher expects to find as a result of their experiment
what must a hypotheses be?
precise
and
unambiguous
How is the aim of the study expressed?
in
general
terms
what do aims outline?
the focus of the
study
what are the 2 types of hypotheses?
Null
and
alternative
what should an alternative hypothesis include?
an
IV
and
DV
both should be
operationalised
what is an alternative hypothesis?
hypothesis suggesting there is a difference or effect between variables
how can the IV be operationalised?
by providing different
conditions
which are specific
how can the DV be operationalised?
by having a
unit
of measurement eg. seconds, score on a test
what are the 2 types of alternative hypotheses?
directional
(one-tailed)
non-directional
(two-tailed)
what do directional hypotheses predict?
The direction of the difference between conditions
what do directional hypotheses suggest?
one condition will
out-perform
the other
either positive or negative
what do non-directional hypothesis not predict?
direction
of the difference in conditions
what kind of hypothesis do all research start as?
Null
What do null hypothesis suggest?
No effect of
IV
on the
DV
why do all research start as null hypothesis?
until
experiment
has been conducted & results are
analysed
it is impossible to state anything els
what words will hypothesis for a correlation use?
relationship
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