Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Distance Measurements by Taping01:18

Distance Measurements by Taping

472
Tapes are essential in surveying for accurate, durable, and short-distance measurements. Made from lightweight, nylon-coated steel, they offer flexibility and strength for rugged outdoor use. The nylon coating protects against rust and wear, extending the tape's life. Standard lengths, around 30 meters, are marked in meters and millimeters for precision.Surveyors select tapes based on site conditions and accuracy needs. Lightweight, nylon-coated tapes are commonly used for ease of handling and...
472
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

531
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...
531
Design Example: Measuring Distance Between Two Points with Obstructions01:10

Design Example: Measuring Distance Between Two Points with Obstructions

411
When measuring distances in areas with physical obstructions, such as a lake in a field, surveyors must employ techniques to calculate accurate lengths without direct line measurements. One effective method is the offset technique, which allows for precise distance estimation over inaccessible stretches.In this scenario, a surveyor must measure a side of an area that crosses a lake. Since the measuring tape cannot span the lake, the surveyor begins by establishing a baseline that aligns with...
411
Distance Problem01:29

Distance Problem

74
When an object's velocity changes over time, the total distance traveled can be determined by summing small displacement intervals over short increments. This approach approximates the true distance through numerical summation and the use of integral calculus. An estimate of the total displacement can be obtained by measuring velocity at regular intervals and multiplying each value by the corresponding time step.If a runner accelerates over the first three seconds of a race, speed measurements...
74
Mutation, Gene Flow, and Genetic Drift01:09

Mutation, Gene Flow, and Genetic Drift

64.5K
In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).
64.5K
Instinctive Drift01:05

Instinctive Drift

772
Instinctive drift refers to the tendency of animals to revert to their innate behaviors despite repeated reinforcement. Breland and Breland demonstrated this concept in an experiment with a raccoon. The raccoon was trained to pick up two coins and place them in a container in exchange for food. Initially, the raccoon learned to associate the coins with food, making them a conditioned stimulus or a substitute for food. However, over time, the raccoon became less willing to put the coins into the...
772

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Latent Poisson count models for action count data from technology-enhanced assessments.

The British journal of mathematical and statistical psychology·2026
Same author

A Latent Markov Model for Noninvariant Measurements: An Application to Interaction Log Data From Computer-Interactive Assessments.

Psychometrika·2025
Same author

Location-Matching Adaptive Testing for Polytomous Technology-Enhanced Items.

Applied psychological measurement·2024
Same author

Flow with an intelligent tutor: A latent variable modeling approach to tracking flow during artificial tutoring.

Behavior research methods·2023
Same author

Compromised item detection: A Bayesian change-point perspective.

The British journal of mathematical and statistical psychology·2022
Same author

Polytomous Testlet Response Models for Technology-Enhanced Innovative Items: Implications on Model Fit and Trait Inference.

Educational and psychological measurement·2022
Same journal

babebi: An R Package for Bayesian Estimation and Validation in Small-N Two-Rater Pre-Post Designs.

Applied psychological measurement·2026
Same journal

A Tool for Agreement and Alignment Analysis in Binary Rating Tasks: The R Package scindex.

Applied psychological measurement·2026
Same journal

The EM Algorithm and Its Variants in Cognitive Diagnostic Models: Comparing Their Propensity for Boundaries, Extremes, Convergence, and Suboptimal Solutions.

Applied psychological measurement·2026
Same journal

When Perceptions of Social Desirability Differ: Implications for the Multidimensional Nominal Response Model of Faking.

Applied psychological measurement·2026
Same journal

csemGT: An R Package for Estimating Raw-Score Conditional Standard Errors of Measurement in Generalizability Theory.

Applied psychological measurement·2026
Same journal

Confirmatory Factor Analysis with Adaptive Quadrature Estimator Using Four Link Functions.

Applied psychological measurement·2026
See all related articles

Related Experiment Video

Updated: Feb 9, 2026

Computerized Adaptive Testing System of Functional Assessment of Stroke
05:21

Computerized Adaptive Testing System of Functional Assessment of Stroke

Published on: January 7, 2019

6.3K

Parameter Drift Detection in Multidimensional Computerized Adaptive Testing Based on Informational

Hyeon-Ah Kang1, Hua-Hua Chang1

  • 1University of Illinois at Urbana-Champaign, USA.

Applied Psychological Measurement
|June 9, 2018
PubMed
Summary
This summary is machine-generated.

This study introduces a new method using informational distance to detect parameter drift in computerized adaptive testing. The approach effectively identifies changes in item response functions over time, ensuring test accuracy.

Keywords:
item parameter driftmultidimensional computerized adaptive testingmultidimensional item response function

More Related Videos

Experimental Paradigm for Measuring the Effects of Self-distancing in Young Children
07:01

Experimental Paradigm for Measuring the Effects of Self-distancing in Young Children

Published on: March 1, 2019

8.5K
Using Informational Connectivity to Measure the Synchronous Emergence of fMRI Multi-voxel Information Across Time
07:12

Using Informational Connectivity to Measure the Synchronous Emergence of fMRI Multi-voxel Information Across Time

Published on: July 1, 2014

12.7K

Related Experiment Videos

Last Updated: Feb 9, 2026

Computerized Adaptive Testing System of Functional Assessment of Stroke
05:21

Computerized Adaptive Testing System of Functional Assessment of Stroke

Published on: January 7, 2019

6.3K
Experimental Paradigm for Measuring the Effects of Self-distancing in Young Children
07:01

Experimental Paradigm for Measuring the Effects of Self-distancing in Young Children

Published on: March 1, 2019

8.5K
Using Informational Connectivity to Measure the Synchronous Emergence of fMRI Multi-voxel Information Across Time
07:12

Using Informational Connectivity to Measure the Synchronous Emergence of fMRI Multi-voxel Information Across Time

Published on: July 1, 2014

12.7K

Area of Science:

  • Educational Measurement
  • Psychometrics
  • Statistical Modeling

Background:

  • Computerized Adaptive Testing (CAT) relies on accurate item parameters.
  • Parameter drift, changes in item characteristics over time, can compromise test validity.
  • Multidimensional CAT (MCAT) presents unique challenges for drift detection due to multiple dimensions.

Purpose of the Study:

  • To propose and evaluate an informational distance/divergence-based approach for detecting parameter drift in MCAT.
  • To develop significance testing procedures for identifying changes in multidimensional item response functions (MIRFs) over time.
  • To assess the performance of the proposed drift detection measures in terms of power and Type I error control.

Main Methods:

  • Utilized informational distance/divergence measures to quantify discrepancies between probability functions.
  • Employed the k-nearest neighbors algorithm with random search to approximate MIRFs from response data.
  • Conducted a simulation study to evaluate the proposed drift detection methods under various sample sizes.

Main Results:

  • The distance/divergence-based drift measures demonstrated effectiveness in identifying parameter drift in MCAT.
  • The methods showed moderate statistical power with sample sizes of 500 examinees.
  • Excellent power was achieved with larger sample sizes (1,000 examinees).
  • Type I error rates were adequately controlled at the nominal level under the null hypothesis.

Conclusions:

  • The proposed informational distance/divergence approach is a viable method for detecting parameter drift in MCAT.
  • The significance testing procedures provide a reliable way to identify changes in MIRFs.
  • The effectiveness of the drift measures is dependent on sample size, performing better with larger samples.