John Ennis

Greater Richmond Region Contact Info
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Life is full of surprises. In my case, I expected to become a math professor. But as I…

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Publications

  • A Thurstonian comparison of the Tetrad and Degree of Difference tests

    Food Quality and Preference

    Ennis, J. M., & Christensen, R. (2015). A Thurstonian comparison of the Tetrad and Degree of Difference tests. Food Quality and Preference, 40, 263-269.

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  • Sensory difference tests as measurement instruments: A review of recent advances

    Journal of sensory studies

    Ennis, J. M., Rousseau, B., & Ennis, D. M. (2014). Sensory difference tests as measurement instruments: A review of recent advances. Journal of sensory studies, 29(2), 89-102.

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  • Paired preference data with a no-preference option–Statistical tests for comparison with placebo data

    Food Quality and Preference

    Christensen, R. H. B., Ennis, J. M., Ennis, D. M., & Brockhoff, P. B. (2014). Paired preference data with a no-preference option–Statistical tests for comparison with placebo data. Food Quality and Preference, 32, 48-55.

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  • Precision of measurement in Tetrad testing

    Food Quality and Preference

    Ennis, J. M., & Christensen, R. H. (2014). Precision of measurement in Tetrad testing. Food Quality and Preference, 32, 98-106.

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  • Transitioning from proportion of discriminators to a more meaningful measure of sensory difference

    Food Quality and Preference

    Jesionka, V., Rousseau, B., & Ennis, J. M. (2014). Transitioning from proportion of discriminators to a more meaningful measure of sensory difference. Food Quality and Preference, 32, 77-82.

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  • Reconsidering the Specified Tetrad Test

    Journal of Sensory Studies

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  • Importance of correct instructions in the Tetrad test

    Journal of Sensory Studies

    Rousseau, B., & Ennis, J. M. (2013). Importance of correct instructions in the Tetrad test. Journal of Sensory Studies, 28(4), 264-269.

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  • Mapping hedonic data: A process perspective

    Journal of Sensory Studies

    Ennis, D. M., & Ennis, J. M. (2013). Mapping hedonic data: A process perspective. Journal of Sensory Studies, 28(4), 324-334.

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  • The year of the tetrad test

    Journal of Sensory Studies

    Ennis, J. M. (2013). The year of the tetrad test. Journal of Sensory Studies, 28(4), 257-258.

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  • Analysis and Thurstonian scaling of applicability scores

    Journal of Sensory Studies

    Ennis, D.M., & Ennis, J.M. (2013) Analysis and Thurstonian scaling of applicability scores. Journal of Sensory Studies. 28(3), 188-193.

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  • A Thurstonian Ranking Model with Rank-Induced Dependencies

    Journal of Classification

    Ennis, J.M. and Ennis, D.M. (2013). A Thurstonian ranking model with rank-induced dependencies. Journal of Classification, 30, 124-147.

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  • A comparison of adaptive choice-based conjoint and choice-based conjoint to determine key choice attributes of sour cream with limited sample size

    Journal of Sensory Studies

    Jervis, S. M., Ennis, J. M., and Drake, M. A. (2012) A comparison of adaptive choice-based conjoint and choice-based conjoint to determine key choice attributes of sour cream with limited sample size. Journal of Sensory Studies. 27, 451-462.

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  • A Comparison of Three Commonly Used Methods for Treating No Preference Votes

    Journal of Sensory Studies

    Ennis, J.M., & Ennis, D.M. (2012) A comparison of three commonly used methods for treating no preference votes. Journal of Sensory Studies, 27(2), 123-129.

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  • A group level validation of the supercombinatorality property: Finding high-quality ingredient combinations using pairwise information

    Food Quality and Preference

    Nestrud, M. A., Ennis, J. M., and Lawless, H. T. (2012). A group level validation of the supercombinatorality property: Finding high-quality ingredient combinations using pairwise information. Food Quality and Preference, 25, 23-28.

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  • A Large-Scale Experimental Comparison of the Tetrad and Triangle Tests in Children

    Journal of Sensory Studies

    Garcia, K., Ennis, J.M., and Prinyawiwatkul, W. (2012) A large-scale experimental comparison of the tetrad and triangle tests in children. Journal of Sensory Studies. 27, 217–222.

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  • Accounting for No Difference/Preference Responses or Ties in Choice Experiments

    Food Quality and Preference

    Ennis, D. M. and Ennis, J. M. (2012). Accounting for no difference/preference responses or ties in choice experiments. Food Quality and Preference, 23(1), 13-17.

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  • Assignment-Minimum Clique Coverings

    Journal of Experimental Algorithmics

    Ennis, J.M., Fayle, C.M. & Ennis, D.M. (2012) Assignment-minimum clique coverings. Journal of Experimental Algorithmics. 17(1), 1.5:1-1.5:17.

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  • eTURF: A Competitive TURF Algorithm for Large Datasets

    Food Quality and Preference

    Ennis, J. M., Fayle, C. M., and Ennis, D. M. (2012). eTURF: A competitive TURF algorithm for large datasets. Food Quality and Preference, 23(1), 44-48.

    Other authors
    • Charles Fayle
    • Daniel Ennis
  • Guiding the Switch from Triangle Testing to Tetrad Testing

    Journal of Sensory Studies

    Ennis, J.M. (2012) Guiding the switch from triangle testing to tetrad testing. Journal of Sensory Studies. 27, 223–231.

  • Justifying Count-Based Comparisons

    Journal of Sensory Studies

    Ennis, J.M., & Ennis, D.M. (2012) Justifying count-based comparisons. Journal of Sensory Studies, 27(2), 130-136.

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  • Confidence bounds for multiplicative comparisons

    Communications in Statistics

    Ennis, J.M. and Ennis, D.M. (2011). Confidence Bounds for Multiplicative Comparisons. Communications in Statistics: Theory and Methods, 40(17), 3049-3054.

    Other authors
    • Daniel Ennis
  • The Power of Sensory Discrimination Methods Revisited

    Journal of Sensory Studies

    Ennis, J. M. and Jesionka, V. (2011). The power of sensory discrimination methods revisited. Journal of Sensory Studies, 26(5), 371-382.

    Other authors
    • Virginie Jesionka
  • Validating a Graph Theoretic Screening Approach to Food Item Combinations

    Journal of Sensory Studies

    Nestrud, M. A., Ennis, J. M., Fayle, C. M., Ennis, D. M., and Lawless, H. T. (2011). Validating a graph theoretic screening approach to food item combinations. Journal of Sensory Studies, 26(5), 331-338.

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  • Describing the universal cover of a noncompact limit

    Geometry and Topology

    Ennis, J. M. and Wei, G. (2010). Describing the universal cover of a noncompact limit. Geometry & Topology, 14, 2479-2496.

    Other authors
    • Guofang Wei
  • Equivalence hypothesis testing

    Food Quality and Preference

    Ennis, D.M. and Ennis, J.M. (2010). Equivalence hypothesis testing. Food Quality and Preference, 21, 253-256.

    Other authors
    • Daniel Ennis
  • Equivalence Hypothesis Testing: Reply to Bi

    Food Quality and Preference

    Ennis, D. M. and Ennis, J. M. (2010). Equivalence hypothesis testing: Reply to Bi. Food Quality and Preference, 21, 261.

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  • Hypothesis testing for equivalence based on symmetric open intervals

    Communications in Statistics

    Ennis, D.M. and Ennis, J.M. (2009). Hypothesis testing for equivalence based on symmetric open intervals. Communications in Statistics - Theory and Methods, 38(11), 1792-1803.

    Other authors
    • Daniel Ennis
  • Confidence bounds for positive ratios of normal random variables

    Communications in Statistics

    Ennis, D., Ennis, J., Palen, J., Lampe, R. (2008). Confidence bounds for positive ratios of normal random variables. Communications in Statistics - Theory and Methods, 37, 307-317.

    Other authors
    • Daniel Ennis
    • Joseph Palen
    • Richard Lampe
  • A neurobiological theory of automaticity in perceptual categorization

    Psychological Review

    Ashby, F.G., Ennis, J. and Spiering, B. (2007). A neurobiological theory of automaticity in perceptual categorization. Psychological Review, 114(3), 632-656.

    Other authors
    • Greg Ashby
    • Brian Spiering
  • Describing the universal cover of a compact limit

    Differential Geometry and its Applications

    Ennis, J. and Wei, G. (2006). Describing the universal cover of a compact limit. Differential Geometry and its Applications, 24(5), 554–562.

    Other authors
    • Guofang Wei
  • The role of the basal ganglia in category learning

    The Psychology of Learning and Motivation

    Ashby, F.G. and Ennis, J. (2006). The role of the basal ganglia in category learning. The Psychology of Learning and Motivation, 46, 1-36.

    Other authors
    • Greg Ashby
  • Replicated difference and preference tests: How to account for inter-trial variation.

    Food Quality and Preference

    Bi, J., Templeton-Janik, L., Ennis, J. M., and Ennis, D. M. (2000). Replicated difference and preference tests: How to account for inter-trial variation. Food Quality and Preference, 11, 269-273.

    Other authors
    • Jian Bi
    • Lynn Templeton-Janik
    • Daniel Ennis
  • Thurstonian models for variants of the method of tetrads

    British Journal of Mathematical and Statistical Psychology

    Ennis, J. M., Ennis, D. M., Yip, D. and O'Mahony, M. (1998). Thurstonian models for variants of the method of tetrads. British Journal of Mathematical and Statistical Psychology, 51, 205-215.

    Other authors
    • Daniel Ennis
    • Doreen Yip
    • Michael O'Mahony
  • A Thurstonian Analysis of the Two-Out-of-Five Test

    Journal of Sensory Studies

    Ennis, J.M. (In Press) A Thurstonian Analysis of the Two-Out-of-Five Test. Journal of Sensory Studies.

  • Investigating the single ideal assumption using Ideal Profile Method

    Food Quality and Preference

    Worch, T., & Ennis, J.M. (2013). Investigating the single ideal assumption using Ideal Profile Method. Food Quality and Preference, 29(1), 40-47.

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  • Mapping Hedonic Data: A Process Perspective

    Journal of Sensory Studies

    Ennis, D.M., & Ennis, J.M. (In Press) Mapping Hedonic Data: A Process Perspective. Journal of Sensory Studies.

  • Paired preference data with a no-preference option – Statistical tests for comparison with placebo data

    Food Quality and Preference

    Christensen, R.H.B., Ennis, J.M., Ennis, D.M., & Brockhoff, P.B. (In Press) Paired preference data with a no-preference option – Statistical tests for comparison with placebo data. Food Quality and Preference.

    Other authors
  • Precision of measurement in Tetrad testing

    Food Quality and Preference

    Ennis, J.M, & Christensen, R.H.B. (In Press) Precision of measurement in Tetrad testing. Food Quality and Preference.

    Other authors
  • The Importance of Correct Instructions in the Tetrad Test

    Journal of Sensory Studies

    Rousseau, B., & Ennis, J.M. (In Press) The Importance of Correct Instructions in the Tetrad Test. Journal of Sensory Studies.

    Other authors
  • The Year of the Tetrad test

    Journal of Sensory Studies

    Ennis, J.M. (In Press) The Year of the Tetrad Test. Journal of Sensory Studies.

  • Transitioning from proportion of discriminators to a more meaningful measure of sensory difference

    Food Quality and Preference

    Jesionka, V., Rosseau, B., & Ennis, J.M. (In Press) Transitioning from proportion of discriminators to a more meaningful measure of sensory difference. Food Quality and Preference.

    Other authors

Honors & Awards

  • 2013 Food Quality and Preference Awards - Researcher of the Future

    Elsevier

    Awarded to a researcher who received their doctoral degree 10 or fewer years prior to the year of the granting of the award for contributions to sensory or consumer science, whether in terms of basic processes, methodologies or applications of knowledge or methods.

  • Outstanding Educator

    UCSB

    Award given to graduate students deemed outstanding as educators.

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