reliability and validity

HideShow resource information
Preview of reliability and validity

First 319 words of the document:

research methods
reliability and validity
term description what causes low How can it be
levels of it? checked?
inter rater the degree to which two or poorly designed a correlational
reliability more observers record the behavioural analysis of the
same behaviour checklists recordings can be
internal the degree to which the questions which split half technique.
reliability self report measure measure different the questionnaire is
consistently measures the aspects of human split in two and
same aspect of human behaviour from it two totals
behavior. are calculated from
the responses. these
are then correlated
external the extent to which changes in opinions test retest. the
reliability consistent or the same or variations in the study is repeated
results would be gained if way the study is some time later and
the study was replicated carried out the two sets of
results are
measured for
similarity using a
internal the extent to which a extraneous via peer review and
validity study measures what it is variables such as by comparing the
supposed to be measuring demand results of this
characteristics or investigation to
investigator other similar
effects. studies.
ecological the extent to which the very artifical set by comparing the
validity findings can be generalised up which means results to other
to real life, this is that the behaviour similar situations
sometimes called mundane of the subjects is which might have
realism very artificial and used observations
more importantly of field
different to their experiments to
real life behaviour collect their data.
population the degree to which the biased samples by evaluating the
validity findings can be generalised sample and the
to the target population sampling technique

Other pages in this set


No comments have yet been made

Similar Psychology resources:

See all Psychology resources »See all resources »