Validity of Data Collection Instruments Archives

Validity of Data Collection Instruments

KENPROAugust 17, 2012February 22, 2016

Validity (accuracy) is the degree to which a test or an instrument measures what it purports to measure (Nachmias & Nachmias, 1996). While there are various types of validity, this guide briefly describes only two types, namely face validity and content validity: Face validity: Face validity is an estimate of whether a test appears […]

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Validity of Data Collection Instruments