Concepedia

Ratna Nandakumar

RN

33

Publications

1.5K

Citations

21

H-Index

1991

Active since

Affiliations

University of Delaware(Current)

University of Illinois Urbana-Champaign

Amrita Vishwa Vidyapeetham

Educational Testing Service

National Changhua University of Education

Ratna Nandakumar is an author at University of Delaware specializing in engineering, statistics, and education.

Top concepts

EngineeringEducationStatisticsPsychologyItem Response TheoryClassical Test TheoryReliabilitySocial SciencesApplied MeasurementGeneralizability Theory

Publications per year

1991–2022

33

Publications

33

Investigating the impact of an integrated approach to the development of preservice teachers' technological pedagogical content knowledge (TPACK)

Chrystalla Mouza, Rachel Karchmer‐Klein, Ratna Nandakumar et al. · Computers & Education · 2013 · 259 citations

Technology Teacher Education, Teacher Education, Integrated Approach +8

Refinements of Stout’s Procedure for Assessing Latent Trait Unidimensionality

Ratna Nandakumar, William Stout · Journal of Educational Statistics · 1993 · 121 citations

Psychological Test, Generalizability Theory, Item Response Theory +17

Lexical Principles May Underlie the Learning of Verbs

Roberta Michnick Golinkoff, Roberta Church Jacquet, Kathryn Hirsh‐Pasek et al. · Child Development · 1996 · 93 citations

Neurolinguistics, Psycholinguistics, Cognition +20

Traditional Dimensionality Versus Essential Dimensionality

Ratna Nandakumar · Journal of Educational Measurement · 1991 · 91 citations

Engineering, Geometry, Social Psychology +17

Simultaneous DIF Amplification and Cancellation: Shealy‐Stout's Test for DIF

Ratna Nandakumar · Journal of Educational Measurement · 1993 · 90 citations

Dif Amplification, Calibration, Simulated Test Data +4

Rows per page

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