An empirical Investigation of the effects of three methods of handling guessing and risk taking on the psychometric indices of a test

Mousa Alnabhan1
1United Arab Emirates University, United Arab Emirates
Cite this article:  Alnabhan, M. (2002). An empirical Investigation of the effects of three methods of handling guessing and risk taking on the psychometric indices of a test. Social Behavior and Personality: An international journal, 30, 645-652.

Volume 30 Issue 7 | e1202 | Published: November 2002 | DOI: https://doi.org/10.2224/sbp.2002.30.7.645

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This study examines the effect of three scoring methods (number-correct, discouraging guessing, and the partial knowledge award) on the psychometric indices (reliability and validity) of a test, given examinees' risk-taking level. One hundred and twenty undergraduate students in a psychology research methodology class served as the sample. A 40-item multiplechoice test with 4 responses per item was used to assess the effect of different scoring methods on test reliability and validity, and a test of 10 nonsense items was used to classify the examinees into high risk-taking and low risk-taking groups. The results showed that the 3 methods produce different reliability and validity coefficients, with the partial knowledge method choice.
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