🔍 Key Concepts

• Assessment validity – does the test actually measure what it is supposed to measure? • Assessment reliability – does the test give consistent results if repeated under similar conditions? • The logical relationship between consistency (reliability) and correctness/appropriateness (validity) in any measurement process.

💭 Think About

• If a test gives wildly different results each time, can you reasonably claim it is truly measuring the intended skill or knowledge? Why or why not? • Can a test be very consistent but consistently measure the wrong thing? How does that affect its validity? • Think about a broken scale that always shows the same wrong weight – is it reliable, valid, both, or neither?

✅ Before You Answer

• Be clear on the definition of validity vs. reliability in the context of testing/assessment. • Decide whether consistency alone can guarantee that you are measuring the right construct, or whether one logically must come before the other. • Rule out any option that claims a mutual pre-condition if that does not make sense logically.