1. Predictive deals with how well the test predicts some future behavior of the ones taken the test
2. Concurrent deals with measures that can be given at the same time as the measure to be validated. It yields a numeric value - validity coefficient
3. Validity
3.1. In order to have validity evidence a test must demonstrate it measures what it says it measures
3.2. Tasks
3.2.1. Content Validity Evidence the simplest way to find out if test has sufficient validity evidence. It consists of inspecting test questions to see if they correspond to what the user decides shoild be covered by the test.
3.2.2. Criterion Related Validity Evidence scores from test are correlated with an external criterion. Two types
3.3. Construct Validity Evidence if the evidence corresponds with some theory
3.3.1. Call 1
3.3.2. Call 2
4. correlation
5. Reliability
5.1. Test-Retest method of estimating reliability. the test is given twice , and the correlation between the first set of scores and the second set of scores is determined.
5.2. Alternative form When there are two forms alike both forms are given to a group of students and correlation between two sets of scores are determined. No memory and practiced involved.
5.3. Phone Calls
5.3.1. Internal Consistency items of test correlated with each other. twp types
5.4. Meetings
5.4.1. split Halves each item assigned to one half the total score for each studnet on each half is determind and the correlation between the two total scores for both halves is computed.
5.4.2. Kuder -Richardson Method items within one form of the test have asmuch in common with one another as the items in th ecorresponding items in a equal form.