Once you’ve secured face validity, you can assess more complex forms of validity like content or criterion validity. It’s considered a weak form of validity because it’s assessed subjectively without any systematic testing or statistical analyses.īut testing face validity is an important first step to reviewing the validity of your test. Having face validity doesn’t guarantee that you have good overall measurement validity or reliability. The second method is low in face validity because it’s not a relevant or appropriate measure of age.The first method is high in face validity because it directly assesses age.These two methods have dramatically different levels of face validity: Counting up the number of gray hairs on each participant’s head and guesstimating age on that basis.Asking participants to self-report their birthdate and then calculating the age.poor face validityYou’re looking to measure participants’ ages in a health study. Clearly relevant for what it’s measuringĮxample: Good vs.To have face validity, your measure should be: With poor face validity, someone reviewing your measure may be left confused about what you’re measuring and why you’re using this method. Good face validity means that anyone who reviews your measure says that it seems to be measuring what it’s supposed to. It’s a relatively intuitive, quick, and easy way to start checking whether a new measure seems useful at first glance.
Frequently asked questions about face validityįace validity is important because it’s a simple first step to measuring the overall validity of a test or technique.
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