NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 7 results Save | Export
Cheater Detection Using the Unrelated Question Model
Peer reviewed Peer reviewed
Direct linkDirect link
Reiber, Fabiola; Pope, Harrison; Ulrich, Rolf – Sociological Methods & Research, 2023
Randomized response techniques (RRTs) are useful survey tools for estimating the prevalence of sensitive issues, such as the prevalence of doping in elite sports. One type of RRT, the unrelated question model (UQM), has become widely used because of its psychological acceptability for study participants and its favorable statistical properties.…
Descriptors: Surveys, Responses, Cheating, Deception
The Misidentified Identifiability Problem of Bayesian Knowledge Tracing
Peer reviewed Peer reviewed
PDF on ERIC Download full text
Doroudi, Shayan; Brunskill, Emma – International Educational Data Mining Society, 2017
In this paper, we investigate two purported problems with Bayesian Knowledge Tracing (BKT), a popular statistical model of student learning: "identifiability" and "semantic model degeneracy." In 2007, Beck and Chang stated that BKT is susceptible to an "identifiability problem"--various models with different…
Descriptors: Bayesian Statistics, Research Problems, Models, Learning
The Misidentified Identifiability Problem of Bayesian Knowledge Tracing
Peer reviewed Peer reviewed
PDF on ERIC Download full text
Doroudi, Shayan; Brunskill, Emma – Grantee Submission, 2017
In this paper, we investigate two purported problems with Bayesian Knowledge Tracing (BKT), a popular statistical model of student learning: "identifiability" and "semantic model degeneracy." In 2007, Beck and Chang stated that BKT is susceptible to an "identifiability problem"--various models with different…
Descriptors: Bayesian Statistics, Research Problems, Statistical Analysis, Models
Block Constraints in Age-Period-Cohort Models with Unequal-Width Intervals
Peer reviewed Peer reviewed
Direct linkDirect link
Luo, Liying; Hodges, James S. – Sociological Methods & Research, 2016
Age-period-cohort (APC) models are designed to estimate the independent effects of age, time periods, and cohort membership. However, APC models suffer from an identification problem: There are no unique estimates of the independent effects that fit the data best because of the exact linear dependency among age, period, and cohort. Among methods…
Descriptors: Models, Age, Time, Group Membership
Some Neglected Problems in IRT.
Peer reviewed Peer reviewed
Fischer, Gerhard H. – Psychometrika, 1995
This paper addresses neglected questions in item response theory (IRT): measurement of ability or trait parameters and item difficulty in the Rasch model; measurement of individual change based on a Rasch test; and the general framework for detection of differential item functioning under the Mantel-Haenszel procedure. (SLD)
Descriptors: Ability, Change, Difficulty Level, Identification
On Looking into the Black Box: Prospects and Limits in the Search for Mental Models.
Rouse, William B.; Morris, Nancy M. – 1985
This paper explores a wide range of issues associated with research on mental models. Based on a functional perspective, mental models are defined as the mechanisms whereby humans generate descriptions of system purpose and form, explanations of system functioning and observed system states, and predictions of future system states. Specifically,…
Descriptors: Cognitive Mapping, Cognitive Psychology, Cognitive Structures, Concept Formation
The Relevance of the Identification Problem to Statistical Research on Capital Punishment.
Peer reviewed Peer reviewed
Yunker, James A. – Crime and Delinquency, 1982
Reviews several potential problems that often invalidate statistical tests of social theories. Discusses how there may be very serious identification problems in the estimation of the relationship between executions and homicides, and that serious questions may be raised regarding the validity of any particular estimation of this relationship.…
Descriptors: Capital Punishment, Identification, Information Needs, Models