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Weems, Gail H.; Onwuegbuzie, Anthony J.; Collins, Kathleen M. T. – Evaluation and Research in Education, 2006
Should instruments, such as Likert-type scales, contain both positively worded and negatively worded items within the same scale (i.e. mixed format)? Recent evidence suggests that the use of scales with a mixed format can adversely affect the psychometric properties of scales. In particular, the mean item response to the positively worded items…
Descriptors: Likert Scales, Reading Comprehension, Test Items, Psychometrics