Staff

Educations and Experiences

• 1988-1992 Ph.D.  University of Georgia in the USA (Research and Educational Statistics) (Minor in Teacher  performance)  Dissertation: “Heterogeneous Variance in One-way ANOVA: Variance-stabilization transformation and other alternatives” under Dr. S. Olejnik

• 1986-1988 M. Ed. University of Georgia in the USA (Instructional Psychology)
• 1981-1985 B. A. Chengchi University in Taiwan (Chinese Literature)

Courses Offered

Undergraduate Courses
• Educational Psychology
• Educational Testing and Measurement
• Gender and Education
• Service Learning

Graduate Courses
• Educational Statistics and Computer Application
• Regression Analysis
• Seminar on Psychometrics

Awards & Honors

• 2010 Outstanding Research Award in Education, National Science Council in Taiwan
• 2008 Fulbright Scholarship
• 2004 Outstanding Research Award in Education, National Science Council in Taiwan
• 2002 Ta-You Wu Memorial Award for extinguished  young scholar, National Science Council in Taiwan

Students

Publication

1. Olejnik, S. & Luh, W. M. (1990). Two-stage sampling procedures for comparing means when population distributions are non-normal. ERIC Document, ED319-773.
2. Luh, W. M., Olejnik, S., Greenwood G., & Parkey, F.W. (1991). Psychometric properties of the Wilson Stress Profile for Teacher. Journal of Social Behavior and Personality, 6, 255-270. (SSCI)
3. Schwanenflugel, P.J., Akin, C.E. & Luh, W. M. (1992). Context availability and the recall of abstract and concrete words. Memory and Cognition, 20, 96-104. (SSCI)
4. Li, J., Luh, W. M. & Olejnik, S. (1992). A SAS macro program for applications of five Bonferroni type methods. Applied Psychological Measurement, 16, 364. (SSCI)
5. Olejnik, S. & Luh, W. M. (1994). Type I error rates, power, and sample sizes for two-stage solutions to the Behrens-Fisher problem when population distributions are non-normal. Computational Statistics and Data Analysis, 17, 407- 420. (SCI)
6. Luh, W. M. (1999). Developing trimmed mean test statistics for two-way fixed effects ANOVA models under variance heterogeneity and non-normality. Journal of Experimental Education, 67, 243-264. (SSCI) (NSC -88-2413-H006-002)
7. Luh, W. M. & Guo, J. H. (1999). A powerful transformation trimmed mean method for one-way fixed effects ANOVA models under non-normality and inequality of variances. British Journal of Mathematical and Statistical Psychology, 52, 303-320. (SSCI) (SCI) ( NSC89-2413-H006-002)
8. Guo, J. H. & Luh, W. M. (2000). Normalized Johnson’s transformation one-sample trimmed t for non-normality. Journal of Applied Statistics, 27(2), 197-203. (SCI) (NSC89-2413-H006-002)
9. Guo, J. H. & Luh, W. M. (2000). Testing methods for the one-way fixed effects ANOVA models of log-normal samples. Journal of Applied Statistics, 27(6), 731-738. (SCI)
10. Guo, J. H. & Luh, W. M. (2000). An invertible transformation two-sample trimmed t statistics under heterogeneity and nonnormality. Statistics and Probability Letters, 49, 1-7. (SCI)
11. Luh, W. M. & Guo, J. H. (2000). Approximate transformation trimmed mean methods to the test of simple linear regression slope equality. Journal of Applied Statistics,27(7), 843-857. (SCI) (NSC -89-2413-H006-015) (NSC89-2413-H006-002)
12. Luh, W. M. & Guo, J. H. (2000). Johnson’s transformation two-sample trimmed t and its bootstrap method for heterogeneity and non-normality. Journal of Applied Statistics, 27(8), 965-973. (SCI)
13. Luh, W. M. & Guo, J. H. (2001). Using Johnson’s transformation and robust estimators with heteroscedastic test statistics: An examination of the effects of non-normality and heterogeneity in the nonorthogonal two-way ANOVA design. British Journal of Mathematical and Statistical Psychology, 54, 79-94. (SSCI)(SCI)
14. Luh, W. M. & Guo, J. H. (2001).Transformation works for nonnormality?: On one-sample transformation trimmed t methods. British Journal of Mathematical and Statistical Psychology, 54, 227-236. (SSCI)(SCI) (NSC89-2413-H006-002)
15. Luh, W. M. & Guo, J. H. (2002). Using Johnson's transformation with approximate test statistics for t’e simple regression slope homogeneity. Journal of Experimental Education, 71, 69-81. (SSCI) (NSC -90-2413-H006-015)
16. Cheng, Y., Luh, W. M., & Guo, Y. L. (2003). Reliability and validity of the Chinese Version of the Job Content Questionnaire (C-JCQ) in Taiwanese workers. International Journal of Behavioral Medicine, 10, 15-30. (SSCI)
17. Luh, W. M. & Guo, J. H. (2004). Improved robust test statistic based on trimmed means and Hall’s transformation for two-way ANOVA models under non-normality. Journal of Applied Statistics, 31, 623-643. (SCI) (NSC91-2413-H-006-002)
18. Guo, J. H. & Luh, W. M. (2005). A robust single-stage method for the one-way ANOVA with unequal sample sizes and heterogeneous variances. Journal of Chinese Psychology, 47, 15-24. （中華心理學刊）(TSSCI)
19. Hou, S.-I. & Luh, W. M. (2005). Psychometric properties of the cervical smear belief inventory for Chinese women. International Journal of Behavioral Medicine, 12, 180-191. (SSCI)
20. Luh, W. M. & Guo, J. H. (2005). Heteroscedastic test statistics for one-way analysis of variance: The trimmed means and Hall’s transformation conjunction. Journal of Experimental Education, 74, 75-100. (SSCI)
21. Shu, B.C., Luh, W. M., Li, S. M., & Lu, S. Y. (2007). Self-concept and menopause among mid-life women: A survey in southern Taiwan. Maturitas, 57, 132-138. (SCI)
22. Hou, S. I. & Luh, W. M. (2007). The structure of a web-based HIV testing belief inventory (wHITBI) for college students: The evidence of construct validation. Informatics for Health and Social Care, 32, 83-92. (SCI)
23. Luh, W. M. & Guo, J. H. (2007). Approximate sample size formulas for the two-sample trimmed mean test with unequal variances. British Journal of Mathematical and Statistical Psychology, 60, 137-146. (SSCI)(SCI) (NSC93-2413-H-006-003)
24. Guo, J. H. & Luh, W. M. (2008). Approximate Sample size formula for Testing Group Mean Differences when Variances are Unequal in One-way ANOVA. Educational and Psychological Measurement, 68, 959-971. (SSCI)（NSC94-2413-H-006-004）
25. Luh, W. M., Olejnik, S. Guo, J. H. (2009). The sample size determination for one-sample and two-sample trimmed mean tests. Journal of Experimental Education, 77(2), 167-184. (SSCI)（NSC-92-2413-H-006-004）
26. Guo, J. H., & Luh, W. M. (2009). Optimum Sample Size Allocation to Minimize Cost or Maximize Power for the Two-Sample Trimmed Mean Test. British Journal of Mathematical and Statistical Psychology, 62, 283-298. (SSCI) (SCI) NSC93-2413-H-006-003）
27. Guo, J. H. & Luh, W. M. (2009). On sample size calculation for fixed-effect ANOVA when variances are unknown and possibly unequal. British Journal of Mathematical and Statistical Psychology, 62, 417-425. (SSCI) (SCI) (NSC95-2413-H-006-005-MY3)
28. Lu, S. Y., Tseng, H. F., Lin, L. L., Luh, W. M., & Shu, B. C. (2009). Factors related to depression during menopause: A study in southern Taiwan. Journal of Nursing Research, 17, 128-135. (護理研究)(TSSCI)
29. Mills, L., Cribbie, R. A., & Luh, W. M. (2009). A Heteroscedastic, rank-based approach for analyzing independent groups designs. Journal of Modern Applied Statistical Methods, 8, 322-336.
30. Luh, W. M., & Guo, J. H. (2010). The sample size needed for the trimmed t test when one group size is fixed. Journal of Experimental Education, 78, 14-25. (SSCI) (NSC93-2413-H-006-003)
31. Luh, W. M., & Guo, J. H. (2011). Developing the non-centrality parameter for calculating Group sample sizes in heterogeneous ANOVA. Journal of Experimental Education, 79, (SSCI) (NSC94-2413-H-006-004)
32. Guo, J. H., Billard, L., & Luh, W. M. (2011). New heterogeneous test statistics for the unbalanced fixed-effect nested design. British Journal of Mathematical and Statistical Psychology, 64, 259-276.
33. Guo, J. H., Chen, H. J., & Luh, W. M. (2011). Sample size planning with the cost constraint for testing superiority and equivalence of two independent groups. British Journal of Mathematical and Statistical Psychology, available online 2010/8/10, DOI: 10.13481000711010X512408.
34. Lin, C. Y., Luh, W. M., Yang, A. L., Su, C. T., W. J. D., & Ma, H. I. (2012). Psychometric properties and gender invariance of the Chinese version of the self-report pediatric quality of life inventory version 4.0: short form is acceptable. Quality of Life Research, 21(1), 177-182. (SCI)
35. Lin, C. Y., Luh, W. M., Cheng, C. P., Yang, A. L., Su, C. T., & Ma, H. I. (2012). Measurement equivalence across child self-reports and parent-proxy reports in the Chinese version of the pediatric quality of life inventory version 4.0. Child Psychiatry & Human Development, 15 December 2012. (SSCI).
36. Guo, J. H., & Luh, W. M. (2013). Efficient Sample Size Allocation with Cost Constraints for Heterogeneous-variance Group Comparison. Journal of Applied Statistics, 40(12), 2549-2563.(SCI) (NSC98-2410-H-006-067-MY3)
37. Luh, W. M., & Guo, J. H. (2015). Allocating Sample Sizes to Reduce Budget for Fixed-effect 2X2 Heterogeneous ANOVA. Journal of Experimental Education
38. Cheng, C.-P., Luh, W.-M., Yang, A.-L., Su, C.-T., & Lin, C.-Y. (accepted). Agreement of children and parents scores on Chinese version of Pediatric Quality of Life Inventory 4.0: further psychometric development. Applied Research in Quality of Life. (SSCI, IF=0.642, [SOCIAL SCIENCES, INTERDISCIPLINARY] ranking= 48/93)
39. Luh, W. M., & Guo, J. H. (2015) Sample Size Planning for the Non-inferiority or Equivalence of Linear Functions of Means with Cost Considerations. Psychological Methods
40. Luh, W. M. ^＊, & Guo, J. H. (2016). Allocating sample sizes to reduce budget for fixed-effect 2X2 heterogeneous ANOVA. Journal of Experimental Education, 84, 197-211. (SSCI, Education & Educational Research, ranking=37/231)
41. Ou, H.-T., Su, C.-T., Luh, W.-M., & Lin, C.-Y.* (2017). Knowing is half the battle: The association between leisure-time physical activity and quality of life among four groups with different self-perceived health status in Taiwan. Applied Research in Quality of Life, 12(4), 799-812. (IF=1.286, SSCI, interdisciplinary, ranking=34/96=0.35)
42. Guo, J. H., & Luh, W. M^＊. (2017). Sample size calculations for testing equivalence of two exponential distributions with right censoring: Allocation with costs. Methodology, 13, 144-156. (IF=1.143, SSCI, Mathematical Methods, ranking=24/49=0.49)
43. Guo, J. H., & Luh, W. M^＊. (2019). Testing Two Variances for Superiority/Non-inferiority and Equivalence: Using an Exhaustion Algorithm for Sample Size Allocation with Cost. British Journal of Mathematical and Statistical Psychology.
44. Guo, J. H., & Luh, W. M^＊. (2019). Optimal Sample Sizes for Testing the Equivalence of Two Means. Methodology, 13, 144-156. (IF=1.143, SSCI, Mathematical Methods, ranking=24/49=0.49)

B. Conference

1. Luh, W. M. & Olejnik, S. (1990). Comparing two population means when distributions are non-normal and variances are heterogeneous. International Statistical Symposium, Taipei, Taiwan, June 28-30.
2. Luh, W. M. & Olejnik, S. (1990). Two-stage sampling procedures for comparing means when population distributions are non-normal. Annual Meeting of American Educational Research Association, Boston, MA. April
3. Luh, W. M. (1993).Variance-stabilizing transformations in one-way fixed model ANOVA.Joint Statistics Conference, Taipei, Taiwan.
4. Luh, W. M. (1999). Approximate transformation methods for testing homogeneity of linear regression slopes. American Psychological Association Convention, Boston, U. S. A., August. (NSC-88-2413-H006-002)
5. Luh, W. M. (2001). The woman researcher in women’s reading groups. The Sixth Women in Asia Conference, Australian National University, Australia, September. (NSC89-2411-H006-013-B11)
6. Luh, W. M. & Guo, J. H. (2003). Learning experience and effect on the virtual classroom for Statistics Education. The 14th International Conference on College Teaching and Learning, Jacksonville, FL, April.
7. Luh, W. M., Guo, J. H., & Wisenbaker, J. M. (2004). Difference of attitudes toward statistics between cadets and college students. The 10th International Congress on Mathematical Education, Copenhagen, Denmark, July.
8. Luh, W. M., Takahashi, Y., & Wisenbaker, J. W. (2004). Psychometric properties of Chinese survey of attitudes toward statistics (C-SATS). The 10th International Congress on Mathematical Education, Copenhagen, Denmark, July.
9. Luh, W. M., Guo, J. H., & Olejnik, S. (2006). The sample size determination for one-sample trimmed mean tests. Paper presented in 2006 International Education Research Conference, Australian Association for Research in Education, Adelaide, Nov. 26-30.
10. Lin, L. L., Lo, M. S., Chen, S, Hu, S. C., Su, J., & Luh, W. M. (2006). The study of exercise intervention of sports groups involved in promoting the physical fitness in the Tainan city. Paper presented in the 2nd General Assembly and Conference of the Alliance for Healthy Cities, Suzhou, China, Oct. 28-30.
11. Lin, L. L., Lo, M. S., Chen, S., Hu, S. C., & Luh, W. M. (2008). Evaluation of Exercise intervention on Physical Fitness and Exercise Behavior. Paper presented in 2008 AIESEP World congress, Sapporo, Japan, Jan. 21-24.（the third place of the Best poster award）
12. Huang, C. H. & Luh, W. M. (2008). The Sex segregation of fields and educational aspiration in graduate Master's degree：The evidence from Taiwan Higher Education Data System. Poster presented in 2008 the Chinese American Educational Research and Development Association (北美華人教育研究及策劃協會), New York, March 23-24.
13. Huang, C. H, Tzeng, Yuhtsuen, & Luh, W. M. (2009). Gender-cue is more important than order-of-mention for pronoun resolution of young Chinese-speaking Children. Paper Presented at The Nineteenth annual meeting of the Society for Text and Discourse, Rotterdam, Netherland. (7/26-3/28)
14. Huang, C. H. & Luh, W. M. (2009). Development of pronoun resolution in Chinese-speaking children. Poster presented in the 13th International Conference on the Processing of East Asian Languages. Oct. 9-11, Beijing, China.
15. Huang, Y.-J., & Luh, W. M. (2010). A longitudinal study of body distortion in Taiwanese Adolescents. Paper presented in 2010 CAERDA International conference. Denver, CO. USA, April 29-30.
16. Wu, P.-H., Luh, W. M., & Lai, Y.-C. (2010). The effects of perceived learning environment on the achievement emotions: Analyzing clustered data by using linear mixed models. Paper presented in the AERA conference, Denver, CO. USA, April 30-May 3.
17. Cheng, Y.-C., & Luh, W. M. (2011). Dimensionality and item-wording effect of the Chinese Rosenberg Self-Esteem Scale. Poster presented in the 2011 International Meeting of the Psychometric Society (IMPS). The Hong Kong Institute of Education, July 18-22.
18. Chiu Hua Huang, C. H., Tzeng, Y, Luh, W. M., & Chen, M. (2011). Online pronoun resolution during Chinese narrative comprehension: An eye tracking study. Poster presented in European Conference on Eye Movement, Marseille, France, August 21-25.
19. Huang, Y.-J., & Luh, W. M. (2011). YouTube Video Interventions to Enhance Body Image for Young Adolescent Girls. Paper presented in Educational Research Association of Singapore (ERAS) Conference 2011, September 8-9.
20. Huang, C. H., & Luh, W. M. (2012). Naming and symbolic domination: Evidence from the naming of people and roads in Taiwan. Poster presented in Australian Association for Research in Education Conference, Sydney, December 2-6.
21. Huang, C. H., & Luh, W. M. (2013). The interaction between gender stereotype and gender uses during pronoun resolution in Chinese children. Paper presented in the final conference of the Initial Training Network Language, Cognition and Gender, Bern, Switzerland, June 13-16.
22. Luh, W. M., Guo, J. H. (2014). Testing Linear Function of Means and Sample Size. The VI European Congress of Methodology, Utrecht, The Netherlands, July 22--25.
23. Huang, C. H., & Luh, W. M. (2014, July). The Implications of Occupation and Gender Stereotypical Information. In P. Ntawigira (Chair), Interdisciplinary Symposium conducted at the meeting of International Academic Forum (IAFOR), Brighton, United Kingdom.【Oral presentation】
24. Huang, C. H., & Luh, W. M. (2015, May). Pronoun Resolution for Chinese Children: Effects of Gender Semantics cues. In A. Nicolopoulou (Chair), Workshop "Linguistic and Cognitive Effects in Anaphora Resolution". Symposium conducted at the meeting of the Research Dissemination Center, Aristotle University of Thessaloniki, Greece.【Oral presentation】
25. Luh, W. M., Guo, J. H. (2015). Sample size determination for testing two group variances of non-inferiority/superiority and equivalence with cost considerations. Paper presented in 2015 Applied Statistics, Bled, Slovenia, Sept. 18-24.
26. Luh, W. M., Guo, J. H. (2016). Equivalence test of variances and sample size calculation. Poster presented in the VII European Congress of Methodology, Palma de Mallorca, Balearic Islands, Spain, July, 27-29.
27. Hsu, S. H., & Luh, W. M. (2017). A localized ethnoscape of leisure: A study of leisure activities of migrant women in Taiwan. Paper present in Women in Asia Conference, Perth, Australia, Sept. 25-27.
28. Luh, W. M. (2018). Teaching graduate students sample size planning by using R. Poster presented in the 10th International Conference on Teaching Statistics, Kyoto, Japan, July 8-13.
29. Luh, W. M. & Guo, J. H. (2018). Sample size planning for testing the equivalence of two
    independent simple linear regression slopes. Poster presented in the VIII European Congress of Methodology, University of Jena, Germany, July 25-27.
30. Luh, W. M. & Ma, H. I. (2019). Marriage immigrants care for their children with special needs: Accessibility for early intervention. Paper presented in International Workshop on Care and Migration in Asia: Transnational Care Chain in Reproductive Labor. Rikkyo University, Japan, June 8.
31. Luh, W. M. & Guo, J. H. (2019). Sample size calculation with cost constraints for testing the superiority/non-inferiority and equivalence of two Poisson means. Paper presented in The 13th Annual International Conference on Statistics: Teaching, Theory & Applications, Athens, Greece, July 1-4, 2019.

Projects

Other

• Guo, J. H. & Luh, W. M. (2005). A robust single-stage method for the one-way ANOVA with unequal sample sizes and heterogeneous variances. Journal of Chinese Psychology, 47, 15-24. 1s4dataJCP10.sas
• Luh, W. M. & Guo, J. H. (2005). Heteroscedastic test statistics for one-way analysis of variance: The trimmed means and Hall’s transformation conjunction. Journal of Experimental Education, 74, 75-100. 1wdataJEE.sas
• Luh, W. M. & Guo, J. H. (2015). Sample Size Planning for the Noninferiority or Equivalence of a Linear Contrast With Cost Considerations. Psychological Methods, Jun 29 , 2015, No Pagination Specified. http://dx.doi.org/10.1037/met0000039
• Function-Equivalence.R : R code to calculate the approximate group sizes for testing equivalence of a linear contrast for a designated power
• Function-Equivalence-Fix-size.R : R code to calculate other non-fixed group sizes when some group sizes are fixed, for testing equivalence of a linear contrast for a designated power
• Function-Non-inferiority.R : R code to calculate the approximate group sizes for testing non-inferiority/ superiority of a linear contrast for a designated power
• Function-Non-inferiority-Fix-size.R : R code to calculate other non-fixed group sizes when some group sizes are fixed, for testing non-inferiority/superiority of a linear contrast for a designated power