Research Instrument

• Research Instrument are tools used for data collections and analysis.
• Validity is the degree measures what it claims.
• Construct Validity determined whether an instrument/measurement tool really represent what the researchers want.
• Content Validity covers all aspect of the construct
• Face Validity a subjective measure and weakest form of validity.
• Criterion Validity the result of your test to the result of other tests
• Reliability indicates the accuracy or precision of the instrument
• Inter-Rater checks the degree of agreement among raters