Validity

The extent the study/method is actually measuring what it is claiming to measure is connected with which of the following?

• Consistent

• Valid

• Correct

Match the following

• Population Validity

• Refers to how certain we are that we can generalise from the results to other people

• Internal validity

• How certain can we be that the IV has caused the effect on the DV?

• Temporal Validity

•  Refers to how well the results relate to contemporary times

• External validity

• Refers to the extent to which the results of a study can be generalized to other settings other people and over time

• Ecological validity

•  Refers to how well the setting of the study relates to the real world. 

Asking other psychologists whether they think the test appears to measure the target variable. 

• Test re test

• Inter rater reliablity

• Concurrent validity

• Face Validity

The extent to which test scores correlate with scores on another existing established test administered at the same time.  

• Test re test

• Inter rater reliablity

• Concurrent validity

• Face Validity

Reorder the following - Process involved in concurrent validity when doing a personality questionnaire

• Give participants an established test for measuring personality

• Need a correlation co-efficient of 0.8 or above to show concurrent validity

• Devise new personality test and get participants to complete it

• Compare results from both questionnaires using stats test

Reorder the following - Process involved in establishing face validity when devising behavioural categories before doing an observation

• Devise the behavioural category

• Ask other Psychologists to rate on scale of 1-10 how much they think the behavioural category is valid

• If 80% or more give the behavioural category a rating of 8 or more then it has face validity

3 ways to make a lab experiment more valid

• Use standardised procedures and instructions

• Have a control group as baseline measure

• Use single or double blind procedures

• Use test re test

2 ways to try and make data collected from questionnaires more valid

• Ask the participant NOT to put their name on it

• Put in questions which are similar so can check if responses to them are similar

• Get participant to put name on questionnaire

• Watch the participant whilst they fill it in

Match the following

• Same group of participants do a test then after short period of time they do same test again

• Concurrent validity

• 2 or more researchers do an observation (independently) of the same thing then compare results

• Face validity

• If test scores from the new test correlate with scores from another established test adminis

• Inter-rater/observer reliability

• Asking other psychologists whether they think the test appears to measure the target variable. 

• Test re test