types of validity

Question 1

validity

Answer 1

refers to the extent to which an observed effect is legitimate=the observed effect is genuine and is representative of wider population.

Question 2

internal validity

Answer 2

refers to whether the effects observed in an experiment are due to the manipulation of the independent variable and confounding variables

Question 3

one major threat to internal validty

Answer 3

if participants respond demand characteristics and act in a way that they think is expected of them.

Question 4

ecological validity

Answer 4

refers to whether the findings from a research study can be generalised to other settings and situations. this is a form of external validity

Question 5

what effects the ecological validity

Answer 5

lab experiments=uses an artificial setting=causes behave to change as participants may show demand characteristics
mundane realism-the degree to which the materials involved in an experiment are similar to events that occur in the real world.
=if the task used to measure the dv are not ‘like everyday life’ =low mundane realism=lowers ecological validity
e.g list of words

Question 6

face validity

Question 7

concurrent validity