internal validity

Question 1

what is internal validity

Answer 1

the extent to how confident you can be that a cause and effect relationship is established due to the iv acting on the dv only

Question 2

how can we improve internal validity

Answer 2

how we can increase the control in a study to establish greater confidence in a causal relationship

Question 3

what are specific ways to improve internal validity

Answer 3

randomisation - random allocation
standardisation
lab experiment
double blind procedure

Question 4

what threatens internal validity

Answer 4

demand characteristics, investigator effects, extraneous/confounding variables, leading questions

Question 5

what does face validity assess

Answer 5

does the test measure what its supposed to measure
done by eyeballing experiment or passing it to an expert to check

Question 6

what does concurrent validity assess

Answer 6

the extent to which a psychological measure is similar to another existing measure and obtains close results

Question 7

what does content validity assess

Answer 7

the extent to which a test measures a represntative sample of the subject matter or behaviour under investigations (eg your studying apple juices and you use orange instead of apples which is wrong)