Testing & Individual Differences
Subject:
Testing and Individual Differences Standardizations and Norms Standardized ? a test piloted on a sample population and norms of achievement have been established. People taking an experimental part of the SAT who represent a general group of SAT takers is the standardization sample. Questions everyone can answer and those almost no one can answer are discarded. Ideally, this allow for comparison between one person?s 1999 score and your score. Reliability and Validity Reliability is the consistency of the test. If you take it 3 times, all your scores should be similar. It is measured in the following ways: Split-half divides the test in two and correlates people?s scores Equivalent-form- correlation among different versions of the test
