Alternate Forms Reliability Quiz

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Questions and Answers

What is alternate forms reliability?

  • A measure of consistency between two tests that are not based on the same items (correct)
  • A measure of consistency between two different constructs
  • A measure of consistency between two tests that are based on the same items
  • A measure of consistency between two tests taken by the same person

Why is alternate forms reliability often considered impossible in practice?

  • Because the two tests are taken by different people
  • Because the two tests are based on the same items
  • Because the two tests are not based on the same items (correct)
  • Because the two tests measure different constructs

What is a potential issue with using alternate forms reliability?

  • Construct validity
  • Test-retest reliability
  • Internal consistency
  • Carry-over effects (correct)

Which of the following is a potential carry-over effect of giving children Test 1 and then Test 2 on consecutive days?

<p>Children might gain self-confidence if they did well on Test 1 (A)</p> Signup and view all the answers

Why is it difficult to achieve alternate forms reliability?

<p>Because it is impossible to create two tests that are truly equivalent (A)</p> Signup and view all the answers

What is a potential consequence of carry-over effects on the correlation between Test 1 and Test 2 scores?

<p>The correlation might be weaker than expected (C)</p> Signup and view all the answers

Which of the following is a key assumption of test-retest reliability?

<p>The test should be administered on two different occasions (A)</p> Signup and view all the answers

What is the main advantage of test-retest reliability over parallel forms reliability?

<p>It only requires one test to be created (C)</p> Signup and view all the answers

What is the main assumption of test-retest reliability regarding the construct of interest?

<p>It is a stable construct that does not change over time (C)</p> Signup and view all the answers

What is the potential consequence of administering the same test twice without changing any of the items?

<p>Increased susceptibility to practice effects (B)</p> Signup and view all the answers

Under what circumstances might it be possible to assume equal error variances in a reliability study?

<p>When participants are tested under the same conditions (A)</p> Signup and view all the answers

What is the potential consequence of assuming equal error variances when they are not actually equal in a reliability study?

<p>An overestimation of reliability (B)</p> Signup and view all the answers

What is the typical range of time intervals used in most test-retest studies?

<p>2 to 8 weeks (A)</p> Signup and view all the answers

How does the length of the test-retest interval affect the correlation between scores?

<p>It affects the magnitude of the correlation (B)</p> Signup and view all the answers

What is the main limitation of the test-retest approach to the estimation of reliability, thus causing it to be called a "stability coefficient"?

<p>We can never really know how stable a construct is, so cannot break up the 'error variance' into true score changes and genuine error variance. (B)</p> Signup and view all the answers

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