50Santos, K., Loberiza, K., & Cagasan, L. (2023, December). Developing Large-Scale Cognitively Diagnostic Assessments to determine Grade 6 Learner Needs: Experience from the Philippines. Paper presented at the 2023 UNESCO Network for Education Quality Monitoring in the Asia-Pacific (NEQMAP) Annual Meeting, Bangkok, Thailand.

49Loberiza, K., Cagasan, L., & Santos, K. (2023, October). Development of a Cognitive Diagnostic Assessment to Determine Learning Needs Among Grade 6 Learners in BARMM. Invited Paper presented at the 12th National Conference on Research in Teacher Education. Quezon City, Philippines.

48Santos, K. (2023, October). Exploratory Study on the Factors Associated with Data Literacy: Evidence from TIMSS 2019 Grade 4 Assessment Data. Invited Paper presented at the 2nd Philippine Data Festival, Manila, Philippines.

47Santos, K., Loberiza, K. & Bagui, L. (2022, October). Retrofitting a Grade 5 Mathematics Assessment with Cognitive Diagnosis Models. Paper presented at the 1st International Conference on Assessment and Learning, Bali, Indonesia.

46Santos, K., Loberiza, K. & Cagasan, L. (2022, October). Determinants of the Filipino Grade 4 Learners’ Performance in TIMSS 2019 Mathematics and Science Assessments. Paper presented at the 15th National Convention on Statistics, Quezon City, Philippines.

45Santos, K., Escalante, S. & Gauran, I. (2022, April). A new test statistic for absolute fit evaluation in cognitive diagnosis models. Paper presented at the 2022 Annual Meeting of National Council on Measurement in Education (virtual).

44Olea, J. & Santos, K. (2022, April). An application of mixture modeling for cognitive diagnosis. Paper presented at the 2022 Annual Meeting of National Council on Measurement in Education (virtual).

43Ladaga, B., Olea, J. & Santos, K. (2022, April). Investigating the impact of response noise on forced-choice item response theory models. Paper presented at the 2022 Annual Meeting of National Council on Measurement in Education (virtual).

42Mejia, I., Santos, K., & Pedrajita, J. (2022, April). Developing a cognitively diagnostic assessment on scientific inquiry under the G-DINA model framework. Paper presented at the 2022 Annual Meeting of National Council on Measurement in Education (virtual).

41Santos, K. de la Torre, J., Wang, C. & Finkelman, M. (2021, July). DIF-CD-CAT: Improving attribute classification in the presence of differential item functioning. Paper presented at the 2021 International Meeting of Psychometric Society (virtual).

40de la Torre, J., Qiu, X. & Santos, K. (2021, June). A general cognitive diagnosis model for polytomous attributes. Paper presented at the 2021 Annual Meeting of National Council on Measurement in Education (virtual).

39Liang, Q., Santos, K. Tjoe, H. & de la Torre, J. (2021, June). Context Matters: A comparison of empirical CDM analyses involving two different Q-matrices. Paper presented at the 2021 Annual Meeting of National Council on Measurement in Education (virtual).

38Santos, K. & Lantano, A. (2019, October). Comparing Item Response Theory Subscoring Approaches: An Application to Senior High School Statistics and Probability Achievement Test. Paper presented at the 14th National Convention on Statistics, Quezon City, Philippines.

37Santos, K. & de la Torre, J. (2019, October). An Analysis of Clinical Data: Illustrating Equivalence of Unidimensional Item Response Theory and Cognitive Diagnosis Models. Paper presented at the 14th National Convention on Statistics, Quezon City, Philippines.

36del Rosario, P. & Santos, K. (2019, September). Analysis of a Self-Rating Anxiety Scale: A General Cognitive Diagnosis Model Framework. Paper presented at the 56th Psychological Association of the Philippines Convention, Davao City, Philippines.

35Veun, T., Barrios, E. & Santos, K. (2019, August). Sampling Design Proposal for Household Survey in Cambodia with Provincial domain. Invited paper presented at the 62nd World Statistics Congress, Kuala Lumpur, Malaysia.

34Lantano, A. & Santos, K. (2019, August). Profiling Filipino Senior High School Students’ Performance in Statistics and Probability. Poster presented at the 62nd World Statistics Congress, Kuala Lumpur, Malaysia. 

33Zhuo, J., de la Torre, J. & Santos, K. (2019, July). General CDM joint attribute model formulation and selection. Paper presented at the Annual Meeting of Psychometric Society, Santiago, Chile.

32Qiu, X., de la Torre, J. & Santos, K., & Zhang, J. (2019, July). An Empirical Q-matrix validation method for polytomous G-DINA model. Paper presented at the Annual Meeting of Psychometric Society, Santiago, Chile.

31Santos, K., & de la Torre, J. (2019, April). The impact of conditional dependency and its detection on Cognitive Diagnosis Modeling. Paper presented at the Annual Meeting of the National Council on Measurement in Education, Toronto, Canada.

30de la Torre, J. & Santos, K., (2019, April). On the equivalence of Unidimensional Item Response Theory and Cognitive Diagnosis Models. Paper presented at the Annual Meeting of the National Council on Measurement in Education, Toronto, Canada.

29Santos, K., & de la Torre, J. (2018, August). Attribute Validation in Cognitive Diagnosis: A Person Fit Analysis of Fraction-Subtraction Data. Paper presented at the International Conference on Educational Measurement and Evaluation, Manila, Philippines.

28Lantano, A., & Santos, K. (2018, July). Comparing differential distractor functioning detection methods under the nested logit modeling framework. Paper presented at the Annual Meeting of the Psychometric Society, New York, USA.

27de la Torre, J. & Santos, K., (2018, July). A note on the equivalence of unidimensional item response and cognitive diagnosis models. Paper presented at the Conference on Statistical Methods for Innovative Testing and Learning, New York, USA.

26Santos, K., Ren, M., de la Torre, J., de Leon, A. (2018, July). Application of Gaussian copula distribution to the DINA model. Paper presented at the Annual Meeting of the Psychometric Society, New York, USA.

25Santos, K., Ren, M., de la Torre, J., de Leon, A. (2018, June). Conditional dependence among items in the DINA model: Application of the multivariate probit model. Paper presented at the International Conference on Econometrics and Statistics, Hong Kong, SAR.

24Santos, K., de la Torre, J., von Davier, M. (2017, July). Resampling-based approaches for person fit assessment in cognitive diagnosis modeling. Paper presented at the Annual Meeting of the Psychometric Society, Zurich, Switzerland.

23Sun, Y., Santos, K., Sorrel, M.A., & de la Torre, J. (2017, July). Identifying poor-fitting items using limited-information statistics for cognitive diagnosis models. Paper presented at the Annual Meeting of Psychometric Society, Zurich, Switzerland.

22Trio, C., Pedrajita, J., Santos, K., (2017, July). Differential item functioning analysis of an emotional quotient scale. Paper presented at the European Conference on Psychological Assessment 14, Lisbon, Portugal.

21Santos, K., de la Torre, J., von Davier, M. (2017, April). Adjusting person fit index for skewness in cognitive diagnosis modeling. Paper presented at the Annual Meeting of the National Council on Measurement in Education, San Antonio, Texas.

20Santos, K., & Deng, W. (2017, April). Assessing person fit for the proportional reasoning test. Paper presented at the Annual Meeting of the National Council on Measurement in Education, San Antonio, Texas.

19Bian, Y., Santos, K., & de la Torre, J. (2017, April). Testing model fit for non-nested cognitive diagnosis models. Paper presented at the Annual Meeting of the National Council on Measurement in Education, San Antonio, Texas.

18Bai, Y., Santos, K., & de la Torre, J. (2017, April). Bootstrap likelihood ratio test for person fit under DINA framework. Paper presented at the Annual Meeting of the National Council on Measurement in Education, San Antonio, Texas.

17Santos, K., de la Torre, J., & Barrios, E. (2016, August). Using forward search algorithm for person fit analysis in general cognitive diagnosis models. Paper presented at the International Conference on Computational Statistics, Oviedo, Spain.

16Santos, K., de la Torre, J., & von Davier, M. (2016, July). Estimating mixture fit index for cognitive diagnosis models. Paper presented at the Annual Meeting of the Psychometric Society, North Carolina, USA.

15Santos, K. and Barrios, E. (2015, July). Improving predictive accuracy of logistic regression model using ranked set samples. Paper presented at the 60th World Statistics Congress, Rio de Janeiro, Brazil.

14Santos, K., de la Torre, J., & Barrios, E. (2015, July). Detecting aberrant examinees in cognitive diagnosis models. Paper presented at the Annual Meeting of the Psychometric Society, Beijing, China.

13Santos, K. and Borlongan, M. (2014, November). Integrating sampling weights with cognitive diagnosis models. Paper presented at the International Statistical Institute Regional Statistics Conference, Kuala Lumpur, Malaysia.

12Santos, K., de Guzman, G., Peña, M., and Saladar, N. (2014, November). Using principal component analysis in index construction: Application to construction material prices and building permit applications. Paper presented at the International Statistical Institute Regional Statistics Conference, Kuala Lumpur, Malaysia.

11Calimon, M., Dujunco, M., Mata, A., Villa, M., and Santos, K. (2014, November). Mellitus Prevalence and Characteristics of Diabetic Peripheral Neuropathy Using Toronto Clinical Scoring System (TCSS). Poster presented at the 15th Asia Ocenia Congress of Endocrinology, Cebu, Philippines.

10Labitag, A., Aquino, E., Ramos, M., and Santos, K. (2014, November). Thyroid Diseases Predictive Factors for Locoregional, Distant Metastasis and Persistent Disease in Micropapillary Thyroid Cancer among Filipinos. Poster presented at the 15th Asia Ocenia Congress of Endocrinology, Cebu, Philippines.

9Santos, K., de Guzman, G., Peña, M., and Saladar, N. (2014, September). Applying Principal Component Analysis to Construction Material Prices and Building Permit Applications: A Housing-related Index. Paper presented at the Annual Philippine Statistical Association Inc., Cebu, Philippines.

8Ching, M., Ramos, J. Ong, C., Yap, J., and Santos, K. (2013, November). Influence of Asthma Genetics to Susceptibility and Asthma Phenotypes among Selected Pediatric Population: SNPS in Eotaxin and IL-5 Genes. Paper presented at 2013 Asia Pacific Congress of Allergy, Asthma and Clinical Immunology, Taipei, Taiwan. 

7Barrios, E., Santos, K., and Gauran, I. (2013, October) Use of Principal Component Scores in Sampling with Multiple Frames. Paper presented at the 12th National Convention on Statistics, Manila, Philippines.

6Barrios, E., Sarte, G., Lansangan, J., Nalica, A., Santos, K., and Gauran, I. (2013, October). Competency of Graduating Students and Entry Level Workers in IT-BPO Industry. Paper presented at the 12th National Convention on Statistics. Manila, Philippines.

5Abejo, P., Barrios, E., Gauran, I., Labina, C., Lansangan, J., Lucagbo, M., Nalica, A., Santos, K., Sarte, G., Supranes, M. and Villejo, S. (2013, October). The Philippine ICT Industry and its Contributions to Inclusive Growth. Paper presented at 12th National Convention on Statistics. Manila, Philippines.

4Barrios, E. and Santos, K. (2013, August). Using Principal Component Scores as Stratification Variable: An Alternative to Multiple Frame Sampling Methodology. Paper presented at the 59th World Statistics Congress, Hong Kong, China.

3Santos, K. and Barrios, E. (2012, October). Predictive Accuracy of Fitted Logistic Regression Model using Ranked Set Samples. Paper presented at the International Conference on Methods for Surveying and Enumerating Hard-to-Reach Populations, New Orleans, Louisiana, USA.

2Mapa, D., Sarte, G., and Santos, K. (2009, October). Extracting the Common Component of Several Time Series: Comparison of Linear and Non-Linear Procedures. Paper presented at the 10th Student-Faculty Conference on Statistical Sciences, Laguna, Philippines.

1Santos, K., Poblador, S., and Atienza, I. (2008, October). Are Food Prices Biased Toward Metro Manila?: An Analysis of Stochastic and Dynamic Convergence of Provincial Food Prices. Paper presented at the 9th Faculty-Student Conference on Statistical Sciences, Quezon City, Philippines.