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Grammaticality Judgment Tests and Magnitude Estimation

Karami, Mojtaba | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: English
  3. Document No: 49620 (31)
  4. University: Sharif University of Technology
  5. Department: Languages and Linguistics Center
  6. Advisor(s): Salehi, Mohammad
  7. Abstract:
  8. The present study aims at examining interval scaling and magnitude estimation in grammaticality judgment tests in terms of reliability and validity. It also explores the probable impact of response formats on the participants’ performance. 30 Engineering students at Sharif university of Technology participated in this research. The instrument of the research is a grammaticality judgment test developed by Ellis (1990).Two computer-based programs were made in order to assess the two mentioned response formats in grammaticality judgment test. At the first phase of the study, the participants responded to the interval format and after an interval of one month, they attempted the second response format, magnitude estimation. The results of the study revealed: firstly, the magnitude estimation was more reliable than interval scaling. Secondly, regarding validity, around half of the items in the grammaticality judgment test through interval scaling and magnitude estimation proved to be valid. Finally, with respect to the influence of the response formats on the test takers’ performance, it was revealed that the two response formats had a marginal effect on the participants’ performance
  9. Keywords:
  10. Reliability ; Validity ; Grammaticality Judgment Test ; Interval Analysis ; Magnitude Estimation

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