Validity

Question 1

Validity

Answer 1

• Describes the accuracy of the measurement and the degree to which the test measures what you intended to measure
• Conclusions from invalid tests will be inaccurate

Question 2

Construct validity

Answer 2

• creating a measure
• face validity: looks like it measures the right construct
• content validity: does the content of each measure reflect measure the construct

Question 3

Criterion validity

Answer 3

• Does the measure behave as the theory predicts
• predictive validity: can the data predict future events
• known groups validity: does the measure differentiate between groups as expected
• convergent validity: measures of the same construct have similar results
• discriminant validity: measure is not related to groups it shouldn’t be

Question 4

Making valid test items

Answer 4

• Use unambiguous language and both positive and negative items to avoid response bias
• Items should assess all aspects of a construct
• Avoid social desirability bias