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Psychology
Research Methods
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Cards (17)
Experimental
research involves manipulating variables and
measuring
the
effects
on other variables.
Purpose and procedures of random allocation ?
purpose
: this removes
bias
and controls
participant variables
procedure
:
participants
are
picked
out at
random
and put in
groups
to
complete conditions
Purpose and procedures of randomisation?
purpose:
reduces predictability
procedure:
presentation
of
stimuli
are
ordered randomly
by the
hat method
Procedures and purpose of standardisation?
purpose
:
to keep EVERYTHING the same to ensure equality
procedure:
researcher keeps EVERYTHING the same
What is the purpose and procedure of counterbalancing ?
purpose
: equally
distributes order of effects
procedure
:
participants
are
grouped
and
complete
the
conditions
in different
orders
How can you make it easier to replicate the research?
Operationalisation
whats counterbalancing?
Participants
are
grouped
and then
each
group completes the
conditions in
a different order
What’s an extraneous variable?
Any
variable
other than the
Independent
variable that could affect the
dependent
variable
What’s a confounding variable ?
a variables that
varies
with the
Independent
variable and affects the
dependent
variable
what are task variables?
when participant’s complete
multiple
conditions
so their
performance
could be affected
What are situational variables ?
when participant’s
performance
could be
affected
by
differences
in the
situation
What’s the independent groups design?
different participants
take part in each
condition
of the
experiment
used to
compare
one
group
to
another
whats is the Repeated measures design ?
Same
participants take part in all
conditions
used to
compare
participants
before
and
after
performance
What’s the matched pairs design ?
Different participants
take part in each
condition
of the
experiment
however these participants are
matched
on
key variables
that could
affect
the
dependent variable
What’s objectivity ?
operationalising
the variables so there’s
no
subjectivity
making the research
objective
What’s replicability?
Operationalising
the
variables
to make it
easy
to
replicate
the research
What is the experimental method ?
manipulating
the IV
resulting in
2 conditions
these conditions are then
measured
they're then
compared
for a
difference
if there’s a difference we can establish
cause
and
effect