Ratna Nandakumar
Affiliations: | School of Education | University of Delaware, Newark, DE, United States |
Area:
Tests and Measurements Education, Psychometrics PsychologyGoogle:
"Ratna Nandakumar"Children
Sign in to add trainee| Yanwei Zhang | grad student | 2006 | University of Delaware |
| Polina Harik | grad student | 2008 | University of Delaware |
| LaShona L. Burkes | grad student | 2009 | University of Delaware |
| Xiaoyu Qian | grad student | 2011 | University of Delaware |
| Richard A. Feinberg | grad student | 2012 | University of Delaware |
| Jonathan Rubright | grad student | 2012 | University of Delaware |
| Likun Hou | grad student | 2013 | University of Delaware |
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Publications
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| Qian X, Nandakumar R, Glutting J, et al. (2017) Gender and Minority Achievement Gaps in Science in Eighth Grade: Item Analyses of Nationally Representative Data Ets Research Report Series. 2017: 1-19 |
| Natesan P, Nandakumar R, Minka T, et al. (2016) Bayesian Prior Choice in IRT Estimation Using MCMC and Variational Bayes. Frontiers in Psychology. 7: 1422 |
| Aaij R, Abellán Beteta C, Adeva B, et al. (2016) First Observation of D^{0}-D[over ¯]^{0} Oscillations in D^{0}→K^{+}π^{-}π^{+}π^{-} Decays and Measurement of the Associated Coherence Parameters. Physical Review Letters. 116: 241801 |
| Aaij R, Abellán Beteta C, Adeva B, et al. (2016) Search for Violations of Lorentz Invariance and CPT Symmetry in B_{(s)}^{0} Mixing. Physical Review Letters. 116: 241601 |
| Aaij R, Abellán Beteta C, Adeva B, et al. (2016) Measurement of the Difference of Time-Integrated CP Asymmetries in D^{0}→K^{-}K^{+} and D^{0}→π^{-}π^{+} Decays. Physical Review Letters. 116: 191601 |
| Aaij R, Abellán Beteta C, Adeva B, et al. (2016) Observation of B_{s}^{0}→D[over ¯]^{0}K_{S}^{0} and Evidence for B_{s}^{0}→D[over ¯]^{*}^{0}K_{S}^{0} Decays. Physical Review Letters. 116: 161802 |
| Rubright JD, Nandakumar R, Karlawish J. (2016) Identifying an appropriate measurement modeling approach for the Mini-Mental State Examination. Psychological Assessment. 28: 125-33 |
| Aaij R, Adeva B, Adinolfi M, et al. (2015) Search for long-lived heavy charged particles using a ring imaging Cherenkov technique at LHCb. The European Physical Journal. C, Particles and Fields. 75: 595 |
| Aaij R, Abellán Beteta C, Adeva B, et al. (2015) Evidence for the Strangeness-Changing Weak Decay Ξ_{b}^{-}→Λ_{b}^{0}π^{-}. Physical Review Letters. 115: 241801 |
| Aaij R, Adeva B, Adinolfi M, et al. (2015) Search for Hidden-Sector Bosons in B(0)→K(*0)μ(+)μ(-) Decays. Physical Review Letters. 115: 161802 |