you can receive a free credit report from each reporting company once every 12 months you can also order your free credit report by phone call 877 322 8228 by mail download and complete the annual credit report request form and mail it to annual credit report request service p o box 105281
External validity refers to the extent to which the results of a study can be generalized to other settings (ecological validity), other people (population validity) and over time (historical validity). External validity can be improved by setting experiments in a more natural setting and using random sampling to select participants.
Concurrent Validity refers to the extent to which test scores correlate with scores on other relevant measures administered at the same time.Concurrent Validity is the type of Validity d.ther definition: Concurrent validity refers to an assessment of whether a test is measuring what it claims to be measuring by correlating scores with some currently available relevant criterion (e.g., school performance).