Shiken: JALT Testing & Evaluation SIG Newsletter
Vol. 11 No. 1. Mar. 2007. (p. 30) [ISSN 1881-5537]
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Assessment Literacy Self-Study Quiz #2
by Tim Newfields

In the last issue we introduced a new column with basic questions about testing, statistics, and assessment. This issue introduces some additional assessment-related questions, whose suggested answers are online at http://jalt.org/test/SSA2.htm.

Part I: Open Questions

  1. Mention at least one advantage and disadvantage of using scaled scores in a classroom context.

  2. In classical testing theory, what three requirements must alternative forms of a test demonstrate in order for each form to be considered parallel?

  3. Briefly describe what the coefficient of variation (CV) supposedly measures and when it should be used.

  4. How does Pearson's coefficient of skewness differ from Bowley's coefficient of skewness?

[ SUGGESTED ANSWERS ]

Part II: Multiple Choice Questions

  1. In a perfect bell-shaped curve, what percentage of a sample should theoretically be over two standard deviations from the mean?


  2. In a normal bell-shaped curve, what percentage of a sample should be within the 5th stanine?

  3. To calculate a chi-square statistic with one degree of freedom for two groups, which of the following is/are NOT needed?


  4. In general statistics, the symbol r2, signifies .

  5. To find out how the total score on a test correlates with the chance of getting a single item
    on that test correct, a should be ascertained.

[ SUGGESTED ANSWERS ]
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ASSESSMENT LITERACY ONLINE SELF-STUDY SERIES:

Quiz #1: Qs   / As    *    2: As   / As    *    3: Qs   / As   *    4: Qs   / As   *    5: Qs   / As   *    6: Qs   / As   *    7: Qs   / As   *    8: Qs   / As   *    9: Qs   / As   *    10: Qs   / As   *    11: A HREF="SSQ11.htm">Qs   / As  

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