Advanced macroeconomics: Solutions manual - download pdf or read online

By Romer D.

ISBN-10: 0070536686

ISBN-13: 9780070536685

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This result, however, may be due to the limited amount of data considered, since improvements were obtained in Item Pool 2 and at other test lengths. 8 contains the results for 20-item test lengths and shows that the SEE curves were beginning to stabilize. Except at extreme values of the ability continuum, the results for the smaller examinee sample sizes were nearly as good as those obtained with the larger examinee sample size (N == 1000). 9. ted with test lengths of 20 items, the expected decrease in variation of the SEE with increase in sample size was apparent only at ability levels - 1, + 1, and +2.

Educational and Psychological Measurement, 1977,37, 613-620. Urry, V. W. Approximations to item parameters of mental test models and their uses. Educational and Psychological Measurement, 1974,34, 253-269. Urry, V. W. Ancillary estimators for the item parameters of mental tests. In W. A. Gorham (Chair), Computerized testing: Steps toward the inevitable conquest (PS-76-l). S. Civil Service Commission, Personnel Research and Development Center, 1976. Wood, R. , Wingersky, M. , & Lord, F. M. LOGIST: A computer progrcllnfor estilnating examinee ability and item characteristic curve parameters (Research Memorandum 76-6) (revised).

The range of the discrimination parameters was a variable under investigation. 43] was also studied. The maximum value of discrimination was similar to the range and distribution of the discrimination parameters reported for the Verbal Section of the Scholastic Aptitude Test (SAT-V; Lord, 1968). The extent of guessing in the simulated test data was another variable under study. 25. All pseudochance-Ievel parameters were set equal to the mean value of the c parameter under investigation. Examinee Parameters.

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Advanced macroeconomics: Solutions manual by Romer D.


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