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| Adams, G. R. | 1 |
| Bekker, Paul A. | 1 |
| Cook, Linda L. | 1 |
| Jones, R. M. | 1 |
| Petersen, Nancy S. | 1 |
| Tatsuoka, Kikumi K. | 1 |
| Tatsuoka, Maurice M. | 1 |
| Wise, Lauress L. | 1 |
| de Leeuw, Jan | 1 |
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Peer reviewedBekker, Paul A.; de Leeuw, Jan – Psychometrika, 1987
Psychometricians working in factor analysis and econometricians working in regression with measurement error in all variables are both interested in the rank of dispersion matrices under variation of diagonal elements. This paper reviews both fields; points out various small errors; and presents a methodological comparision of factor analysis and…
Descriptors: Error of Measurement, Factor Analysis, Literature Reviews, Mathematical Models
Peer reviewedAdams, G. R. – Journal of Adolescence, 1994
It has been proposed that the Objective Measure of Ego Identity Status and its scoring criteria should be adjusted to utilize a half standard deviation cutoff. Evidence is provided to support the claim that less stringent criteria will lead to higher numbers classified while arriving at the same research results. This proposal is considered and,…
Descriptors: Classification, Data Interpretation, Error of Measurement, Identification (Psychology)
Peer reviewedJones, R. M.; And Others – Journal of Adolescence, 1994
Results from this study indicate that a cutoff consisting of the mean plus a half standard deviation is more desirable than the original mean plus one standard deviation strategy for categorizing respondents into a "pure" identity status. Status-specific comparisons indicated groups were not significantly different on measures of…
Descriptors: Adolescents, Classification, Data Interpretation, Error of Measurement
Wise, Lauress L. – 1986
A primary goal of this study was to determine the extent to which item difficulty was related to item position and, if a significant relationship was found, to suggest adjustments to predicted item difficulty that reflect differences in item position. Item response data from the Medical College Admission Test (MCAT) were analyzed. A data set was…
Descriptors: College Entrance Examinations, Difficulty Level, Educational Research, Error of Measurement
Download full textCook, Linda L.; Petersen, Nancy S. – 1986
This paper examines how various equating methods are affected by: (1) sampling error; (2) sample characteristics; and (3) characteristics of anchor test items. It reviews empirical studies that investigated the invariance of equating transformations, and it discusses empirical and simulation studies that focus on how the properties of anchor tests…
Descriptors: Educational Research, Equated Scores, Error of Measurement, Evaluation Methods
Tatsuoka, Kikumi K.; Tatsuoka, Maurice M. – 1985
The study examines the rule space model, a probabilistic model capable of measuring cognitive skill acquisition and of diagnosing erroneous rules of operation in a procedural domain. The model involves two important components: (1) determination of a set of bug distributions (bug density functions representing clusters around the rules); and (2)…
Descriptors: Artificial Intelligence, Cognitive Processes, Computer Assisted Testing, Computer Software
