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Download full textMartin, Michael O., Ed.; von Davier, Matthias, Ed.; Mullis, Ina V. S., Ed. – International Association for the Evaluation of Educational Achievement, 2020
The chapters in this online volume comprise the TIMSS & PIRLS International Study Center's technical report of the methods and procedures used to develop, implement, and report the results of TIMSS 2019. There were various technical challenges because TIMSS 2019 was the initial phase of the transition to eTIMSS, with approximately half the…
Descriptors: Foreign Countries, Elementary Secondary Education, Achievement Tests, International Assessment
Peer reviewedComrey, Andrew L. – Journal of Consulting and Clinical Psychology, 1988
Addresses common pitfalls in homogeneous scale construction in clinical and social psychology. Offers suggestions about item writing, answer scale formats, data analysis procedures, and overall scale development strategy. Emphasizes effective use of factor-analytic methods to select items for scales and to determine its proper location in…
Descriptors: Clinical Psychology, Data Analysis, Factor Analysis, Personality Measures
