written data or
descriptive data
can be in pictures
self report
a ppt. reports on their
own experiences
questions
closed questions
questions which
you have to
choose from a
set of answers
normally yes/no
ect.
open questions
questions in which you are
free to write what you like
weaknesses
people may lie or
exaggerate to make
themselves look better
people may misunderstand or
not understand the question
ethical issues
informed
consent
ppt.
knows
they are
taking
part in a
study and
they
know
what will
happen
to them
children under 16
cannot consent
right to withdraw
ppt. can leave the study
at any time even if not is
not finished
they should never be
pressured to continue
confidentiality
researcher must always
keep ppt. personal
information and results
confidential
protection of paricipents
protects ppt. from physical
and psychological harm
ppt. should not be decieved
ppt. should not be
distressed
ppt. should leave in the
same state they came
ppt. should not be
embarrassed or
uncomfortable
deception
do not lie to ppt. you
tell them everything
that will happen to
them
tell them everything
in the debreif
hypothesis
a prediction of what will happen
Null hypothesis (H0)
predicts no difference
e.g. there will be no
difference in the stress
levels of people working
in noisy conditions
compared to those
working in quiet
conditions
alternate hypothesis (H1)
predicts a difference
e.g. there will
be a difference
in the stress
levels of people
who work in
noisy
conditions to
those who work
in quiet.
or there will be a
higher level of
stress in people
who work in noisy
conditions than
those who work in
quiet
variables
independant
something that can be
changed or
manipulated
dependant
something that can be
measured
extraneous (control)
something which you
keep the same
can effect results if it is not controlled
this is then called a
extraneous variable
participant variable
differences between ppt.
in two groups
situational variable
parts of the environment
that may affect the
results
standardisation
every trial is run in
the same way
standardised procedure
each ppt. is treated in the same way
standardised procedure
each ppt. is given the
same instructions
sampling techniques
target population
people you are
interested in
looking at
sample
group from the target pop.
random sample
put all posibilities
together and pick out
a certain number of
them
+ not as bias
+more
representative
+more generalisable
-pick everything
that is similar, not
always
representative
-takes alot of time
opportunity sample
you use what is avalible to you
+quick and easy
-bias, dont get
generalisable results
experiments
the way a researcher finds out information
variables must be included
field experiment
an experiment which is
carried out in a
controlled setting
STRENGTHS: researcher has a higher
control of extraneous variables, it is
more ethical because the ppt will
generally know they are taking part in a
experiment so will know all details
WEAKNESSES: it is
less ecologically valid
as it is in a fake
environment, ppt may
act differently, more
chance of demand
charecteristics
because ppt might
find out aim and act
differently
labatory experiment
an experiment which is
carried out in a natural
environment
STRENGTHS:
higher ecological
validity as it is in
a natural setting
so ppt will act
more naturally
WEAKNESSES: less ethical because
ppt. do not always know they are
taking part so they do not know they
can withdraw ect.
interviews
face to face
meeting
researchers use
to get
information
structured interview
pre set questions to ask, interview
does not generally move off
subject
unstructured interview
no set questions to follow
conversation leads from answers
given
people are less likely to lie
people may not include everything, may be embaressed