Jochen Ranger
Martin Luther University of Halle-Wittenberg
StatisticsCalibration (statistics)Goodness of fitHierarchical database modelEconometricsPsychologyPsychological testingPsychometricsCognitive psychologyEstimatorJoint probability distributionResponse timeHazard (logic)Item response theoryAccumulator (cryptography)Test (assessment)Applied mathematicsMathematicsWord error rateComputer scienceComputationProportional hazards modelDiscrete time and continuous timeLatent variable modelLatent class modelEstimation
34Publications
9H-index
192Citations
Publications 34
Newest
#1Jochen Ranger (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 9
#2Jörg-Tobias KuhnH-Index: 13
Last. Steffi Pohl (FU: Free University of Berlin)H-Index: 11
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The term speed-accuracy tradeoff is used when an increase in response speed comes at the expense of response accuracy. Although originally a concept from experimental psychology, the speed-accuracy...
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#1Anett WolgastH-Index: 4
#2Nico Schmidt (MLU: Martin Luther University of Halle-Wittenberg)
Last. Jochen Ranger (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 9
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Different types of tasks exist, including tasks for research purposes or exams assessing knowledge. According to expectation-value theory, tests are related to different levels of effort and importance within a test taker. Test-taking effort and importance in students decreased over the course of high-stakes tests or low-stakes-tests in research on test-taking motivation. However, whether test-order changes affect effort, importance, and response processes of education students have seldomly bee...
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#1Jochen Ranger (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 9
#2Jörg-Tobias KuhnH-Index: 13
Last. Anett Wolgast (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 4
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#1Jochen Ranger (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 9
#2Nico Schmidt (MLU: Martin Luther University of Halle-Wittenberg)
Last. Anett WolgastH-Index: 4
view all 3 authors...
In this paper, we compare the performance of 18 indicators of cheating on e-exams in higher education. Basis of the study was a field experiment. The experimental setting was a computer assisted mock exam in an introductory course on psychology conducted at a university. The experimental manipulation consisted in inducing two forms of cheating (pre-knowledge, test collusion) in a subgroup of the examinees. As indicators of cheating, we consider well-established person-fit indices (e.g., the U3 s...
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#1Jochen RangerH-Index: 9
Last. Anett WolgastH-Index: 4
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#1Jochen RangerH-Index: 9
Last. Tuulia M. Ortner (University of Salzburg)H-Index: 13
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The hierarchical model of van der Linden is the most popular model for responses and response times in tests. It is composed of two separate submodels—one for the responses and one for the response...
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#1Jochen Ranger (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 9
#2Sören Much (Leipzig University)H-Index: 1
In this manuscript, the applicability of the Hausman test to the evaluation of item response models is investigated. The Hausman test is a general test of model fit. The test assesses whether for a model in question the parameter estimates of two different estimators coincide. The test can be implemented for item response models by comparing the parameter estimates of the marginal maximum likelihood estimator with the corresponding parameter estimates of a limited information estimator. For a co...
1 CitationsSource
#1Jochen Ranger (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 9
#2Jörg-Tobias KuhnH-Index: 13
Last. Carsten SzardeningsH-Index: 5
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AbstractDiffusion-based item response theory models are models for responses and response times on psychological tests, which can be used as measurement models in the same way as standard item resp...
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#1Jochen Ranger (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 9
#2Anett Wolgast (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 4
Abstract. In psychological tests, the time needed to respond to the items provides collateral information about the latent traits of the test takers. This, however, requires a measurement model tha...
1 CitationsSource
#1Jochen Ranger (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 9
#2Anett Wolgast (MLU: Martin Luther University of Halle-Wittenberg)H-Index: 4
Last. Jörg-Tobias KuhnH-Index: 13
view all 3 authors...
: Van der Linden's (2007, Psychometrika, 72, 287) hierarchical model for responses and response times in tests has numerous applications in psychological assessment. The success of these applications requires the parameters of the model to have been estimated without bias. The data used for model fitting, however, are often contaminated, for example, by rapid guesses or lapses of attention. This distorts the parameter estimates. In the present paper, a novel estimation approach is proposed that ...
1 CitationsSource