Profiles of public attitude change regarding stuttering

Kenneth O. St. Louis , Fauzia Abdalla , Salman Abdi , Elizabeth (Fisher) Aliveto , Ann Beste-Guldborg , Agata Błachnio , Benjamin Bolton-Grant , Sarah Eisert , Timothy Flynn , Sheryl Gottwald , Jessica Hartley , Daniel Hudock , Kia N. Johnson , Lejla Junuzović-Žunić , Aneta Przepiórka , M. Pushpavathi , Isabella Reichel , Hossein Rezai , Chelsea (Kuhn) Roche , Sara Spears , Mohyeddin Teimouri Sangani , Katarzyna Węsierska

Language and Health ›› 2024, Vol. 2 ›› Issue (2) : 10027

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Language and Health ›› 2024, Vol. 2 ›› Issue (2) :10027 DOI: 10.1016/j.laheal.2024.08.001
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Profiles of public attitude change regarding stuttering
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Abstract

Purpose: A growing number of studies have sought to reduce negative public attitudes toward stuttering in pre-test/post-test designs using the Public Opinion Survey of Human Attributes-Stuttering (POSHA-S). Most investigations have succeeded in improving attitudes, but about one-third of them have not. A previous companion study showed that intervention — but not demographic — characteristics of samples partly predicted success. Method: Authors investigated individual profiles and predictors of change in nonstuttering individuals’ attitudes from pre-test to post-test after exposure to interventions or no intervention. Using pre- versus post-POSHA-S mean ratings from different samples (representing 7 countries and 6 languages) 29 samples comprising 934 respondents were categorized into four categories of intervention success from “unsuccessful” to “very successful.” These were compared to 12 pre and post non-intervention samples containing 345 respondents from a second companion study. Within categories, the individual respondents were sorted according to positive, minimal, or negative changes from pre- to post-tests on the POSHA-S Overall Stuttering Score (OSS). The non-intervention category served as a baseline for determining the effects of interventions on respondents who improved, worsened, or remained the same. Results: As in the previous non-intervention category, within all intervention categories, an unexpected and heretofore undocumented “crossover” effect emerged. Respondents with the least positive pre attitudes improved greatly, and respondents with the most positive attitudes worsened greatly. Those with intermediate attitudes changed minimally. The percentage of respondents changing positively differentiated levels of success in the intervention categories, while the magnitude of mean change did not. Potential predictors in positive and negative changers were not apparent from POSHA-S demographic and attitude variables. Implications: Future interventions to improve stuttering attitudes should address their relatively unstable nature and be targeted differentially to positive, minimal, and negative changers.

Keywords

Stuttering / Changing public attitudes / POSHA-S / Unique profiles / International / “Crossover” effect

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Kenneth O. St. Louis, Fauzia Abdalla, Salman Abdi, Elizabeth (Fisher) Aliveto, Ann Beste-Guldborg, Agata Błachnio, Benjamin Bolton-Grant, Sarah Eisert, Timothy Flynn, Sheryl Gottwald, Jessica Hartley, Daniel Hudock, Kia N. Johnson, Lejla Junuzović-Žunić, Aneta Przepiórka, M. Pushpavathi, Isabella Reichel, Hossein Rezai, Chelsea (Kuhn) Roche, Sara Spears, Mohyeddin Teimouri Sangani, Katarzyna Węsierska. Profiles of public attitude change regarding stuttering. Language and Health, 2024, 2(2): 10027 DOI:10.1016/j.laheal.2024.08.001

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CRediT authorship contribution statement

Kia N. Johnson: Investigation. Salman Abdi: Investigation. Lejla Junuzović-Žunić: Writing-review & editing, Investigation. Elizabeth (Fisher) Aliveto: Writing-review & editing, Investigation. Aneta Przepiórka: Investigation. Ann Beste-Guldborg: Investigation. M. Pushpavathi: Investigation. Agata Błachnio: Investigation. Isabella Reichel: Investigation. Hossein Rezai: Investigation. Benjamin Bol-ton-Grant: Investigation. Sarah Eisert: Investigation. Chelsea (Kuhn) Roche: Investigation. Timothy Flynn: Investigation. Sara Spears: Investigation. Sheryl Gottwald: Investigation. Mohyeddin Teimouri Sangani: Investigation. Katarzyna Węsierska: Investigation. Jessica Hartley: Investigation. Kenneth O. St. Louis: Writing-review & editing, Writing-original draft, Visualization, Validation, Supervision, Resources, Project administration, Methodology, Investigation, Formal analysis, Data curation, Conceptualization. Daniel Hudock: Investiga-tion. Fauzia Abdalla: Writing-review & editing, Investigation.

Funding

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

Declaration of Competing Interest

The authors declare no financial interests/personal relationships which may be considered as potential competing interests. Kenneth O. St. Louis owns the copyright of the POSHA-S.

Data availability

The data that has been used is confidential.

Acknowledgements

We gratefully acknowledge the assistance of Mercedes Ware, Laura Gibson, Brianne Hanlon, Chelsea Heaster, Rebecca Warner, Kailey Holcombe, Joanna Holmes, Claire Rowland, Ahmad Poormohammad, Jocine Gloria Chandrabose, Shabina Roof, Kira Stork, Haley Glover, and Deborah Hendricks.

References

[1]

Abdalla, F. (2015). Changing attitudes toward stuttering. In K. O. St, & Louis (Eds.), Stuttering meets stereotype, stigma, and discrimination:An overview of attitude research (pp.106-129). Morgantown, WV: West Virginia University Press.

[2]

Abdalla, F., & St. Louis, K. O. (2014). Modifying attitudes of Arab school teachers toward stuttering. Language, Speech, and Hearing Services in the Schools, 45, 14-25.

[3]

Abdi S., Jalaei S.H., Teimouri Sangani M., & Pourmohammad A. (2014). ﺏﻭﻡﻱ † ﺱﺍﺯﻱ † ﻭ † ﺏﺭﺭﺱﻱ † ﺭﻭﺍﻱﻱ † ﻭ † ﭖﺍﻱﺍﻱﻱ † ﻥﺱﺥﻩ † ﻑﺍﺭﺱﻱ "ﻡﻕﻱﺍﺱ † ﺱﻥﺝﺵ † ﻥﮒﺭﺵ † ﻉﻡﻭﻡﻱ † ﻥﺱﺏﺕ † ﺏﻩ † ﻭﻱﮊﮒ † ﻱﻩﺍﻱ † ﺍﻥﺱﺍﻥﻱ †-ﻝﻙﻥﺕ ["Development and evaluation of psychometric properties of the Persian version of “Public Opinion Survey of Human Attributes-Stuttering”]. New Scientific Research Journal of Rehabilitation. 9(5), 87-92. (In Persian).

[4]

Ahuwalia, R. (2002). How prevalent is the negativity effect in consumer environments? Journal of Consumer Research, 29, 270-279.

[5]

Babbie, E. (2013). The practice of social research (13th ed.). Belmont, CA: Wadsworth Cengage Learning.

[6]

Barnett A. G., van der Pols, J. C., & Dobson A. J. (2005). Regression to the mean: what it is and how to deal with it. International Journal of Epidemiology, 34, 215-220.

[7]

Beste-Guldborg A., St. Louis K. O., & Shorts J. E. (2015). Face-to-face interviews of people who stutter: Effects on attitudes of SLP students (November). Denver, CO: Poster presented at the Annual Convention of the American Speech-Language-Hearing Association.

[8]

Bolton B., Gibson L., Holmes J., & Rowland C. (2017). Effects of an information workshop on attitudes of teachers who have children who stammer in their classes. Leeds, UK: Unpublished data. Stammering Information Centre.

[9]

Boyle M. P., Dioguardi L.,& Pate, J. E.(2016). A comparison of three strategies for reducing the public stigma associated with stuttering. Journal of Fluency Disorders, 50, 44-58. https://doi.org/10.1016/j.jfludis.2016.09.004.

[10]

Boysen, G., A, & Vogel, D. L. (2008). Education and mental health stigma: The effects of attribution, biased assimilation, and attitude polarization. Journal of Social and Clinical Psychology, 27, 447-470.

[11]

Catapano R., Tomala Z. L., & Rucker D. D. (2019). Perspective taking and self-persuasion: Why “putting yourself in their shoes” reduces openness to attitude change. Psychological Science, 30, 424-435.

[12]

Chandrabose J. G., St. Louis K. O., Pushpavathi M., & Raoof S. (2010). Awareness of stuttering among prospective teachers of Mysore. Journal of the All India Institute of Speech & Hearing (JAIISH), 29, 144-152.

[13]

Chen O., Kalyuga S., & Sweller J. (2015). The worked example effect, the generation effect, and element interactivity. Journal of Educational Psychology, 107, 689-704.

[14]

Corrigan P. W., Morris S. B., Michaels P. J., Rafacz, & Rüsch N. (2012). Challenging the public stigma of mental illness: A meta-analysis of outcome studies. Psychiatric Services, 63, 963-973.

[15]

Delaney, C. (2001). Modification of the negative stutterer stereotype. In G. Bosshardt, H. J. S. Yaruss, & H. F. Peters (Eds.), Proceedings of World Congress of Fluency Disorders: Theory, Research, Treatment & Self-help (pp. 614-618). Nijmegen, The Netherlands: Nijmegen University Press.

[16]

Dias F. R.C., de Matos, L. W., Sampaio, M.dF. dS., Carey, R. J., & Carrera, M. P.(2012). Opposite effects of low versus high dose haloperidol treatments on spontaneous and apomorphine induced motor behavior: Evidence that a very low dose haloperidol acts as an indirect dopamine agonist. Behavioural Brain Research, 229, 153-159. https://doi.org/10.1016/j.bbr.2011.12.042.

[17]

Dholakia, P.M., & Morwitz, V.G. (2002, May). How surveys influence customers. Harvard Business Review. 〈https://hbr.org/2002/05/how-surveys-influence-customers〉.

[18]

Duhachek A., Zhang S., & Krishnan S. (2007). Anticipated group interaction: Coping with valence asymmetries in attitude shift. Journal of Consumer Research, 34, 395-405.

[19]

Ezanwa, V. O., & Jolles, A. E. (2019). Epidemiology. Opposite effects of anthelmintic treatment on microbial infection at individual versus population scales. Science, 347, 175-177.

[20]

Flynn, T. W., & St. Louis, K. O. (2009). Measuring and changing negative stuttering stereotypes in adolescents (November). New Orleans, LA: Poster presented at the Annual Convention of the American Speech-Language-Hearing Association.

[21]

Flynn, T. W., & St. Louis, K. O. (2011). Changing adolescent attitudes toward stuttering. Journal of Fluency Disorders, 36, 110-121. https://www.psychology-lexicon.com/cms/glossary/36-glossary-c/4489-crossover-interaction.html.

[22]

Glossary of Psychology (2019). Glossary/Lexicon. Retrieved on December 10, 2019 from 〈https://www.psychology-lexicon.com/cms/glossary/36-glossary-c/4489-crossover-interaction.html〉

[23]

Gottwald S.L., Warner R., Hartley J., Fraas M., Hawver K., & St. Louis K.O. (2011, November). Altering attitudes towards stuttering through the use of oral histories. Poster presented at the Annual Convention of the American Speech-Language-Hearing Association, San Diego, CA.

[24]

Gottwald S., Kent L., St. Louis K.O., & Hartley J. (2014, November). Altering attitudes towards stuttering through the use of oral histories. Poster presented at the Annual Convention of the American Speech-Language-Hearing Association. Orlando, FL.

[25]

Hadlaczky, G., & Carli, V. (2014). Mental Health First Aid is an effective public health intervention for improving knowledge, attitudes, and behavior, A meta-analysis. International Review of Psychiatry, 26, 467-475.

[26]

Harris, S., & Green, S. (2019). Role of cortical catecholamines in the paradoxical action of psychostimulants. Presented at the Experimental Biology 2019 Meeting. Abstract published in. The FASEB Journal, 33, ib90. https://doi.org/10.1096/fasebj.2019.33.1_supplement.lb90

[27]

Herz, R.S. (2001). Ah, sweet skunk! Why we like or dislike what we smell. Cerebrum. Retrieved December 1, 2019 from 〈https://www.dana.org/article/ah-sweet-skunk-why-we-like-or-dislike-what-we-smell/〉.

[28]

Hofstede Insights. (2024).〈https://www.hofstede-insights.com/country-comparison/〉.

[29]

Holcombe, K., & Eisert, S. (2012). Understanding the impediment: Investigating the nature of people’s attitudes toward stutterers. Tacoma, WA: Unpublished capstone paper. Pacific Lutheran University.

[30]

Howell R. A., Capstick S., & Whitmarsh L. (2016). Impacts of adaptation and responsibility framings on attitudes toward climate change mitigation. Climatic Change, 136, 445-461. DOI 10.1007/s10584-016-1627-z.

[31]

Hughes, S. (2015). Attitudes toward stuttering: An annotated bibliography. In K. O. St. Louis (Ed.), Stuttering meets stereotype, stigma, and discrimination: An overview of attitude research (pp. 310-350). Morgantown, WV: West Virginia University Press.

[32]

Hughes S.,& Strugalla, E. A. (2015). Recognizing positive aspects of stuttering: A survey of the general public In K O St Louis (Ed), Stuttering meets stereotype, stigma, and discrimination: An overview of attitude research (pp 176-186) Morgantown, WV: West Virginia University Press A survey of the general public. In K. O. St. Louis (Ed.), Stuttering meets stereotype, stigma, and discrimination: An overview of attitude research (pp. 176-186). Morgantown, WV: West Virginia University Press.

[33]

Junuzović-Zunić L., Weidner, M. E., Reichel, I. K., Cook, S., St. Louis, K. O., & Ware, M. B. (2015). Effects of fluency disorders coursework on students’ stuttering attitudes in two countries. In K. O. St. Louis (Ed.), Stuttering meets stereotype, stigma, and discrimination: An overview of attitude research (pp. 226-242). Morgantown, WV: West Virginia University Press.

[34]

Kestenbaum, J., & Khnonov, M. (2011). Effects of watching The King’s Speech movie on students’ attitudes toward stuttering. Brooklyn, NY: Unpublished capstone paper. Brooklyn College.

[35]

Kuhn, C. D., & St. Louis, K. O. (2015). Attitudes toward stuttering of middle school students before & after a stuttering video. Denver, CO: Poster presented at the Annual Convention of the American Speech-Language-Hearing Association.

[36]

Kuhn T. S.(1962). The structure of scientific revolutions. Chicago: University of Chicago Press.

[37]

Langevin, M., & Prasad, N. G. N. (2012). A stuttering education and bullying awareness and prevention resource: a feasibility study. Language, Speech, and Hearing Services in the Schools, 43, 344-358.

[38]

Lord C. G., Ross L., & Lepper M. R. (1979). Biased assimilation and attitude polarization: The effects of prior theories on subsequently considered evidence. Journal of Personality and Social Psychology, 37, 2098-2109.

[39]

McGee L., Kalinowski J., & Stuart A. (1996). Effect of a videotape documentary on high school students’ perceptions of a high school male who stutterers. Journal of Speech-Language Pathology and Audiology, 20, 240-246.

[40]

Raypole, C. (2019). What is the nocebo effect? Healthline.com. Retrieved December 1, 2019 from https://www.healthline.com/health/nocebo-effect.

[41]

Reichel I.,& St. Louis, K. O. (2004). Effects of emotional intelligence training in graduate fluency disorders courses. In A. Packman, A. Meltzer, & H. F. M. Peters (Eds.), Proceedings of the 4th World Congress on Fluency Disorders (pp. 474-481). Nijmegen, The Netherlands: Nijmegen University Press.

[42]

Reichel, I., & St. Louis, K. O. (2007). Mitigating negative stereotyping of stuttering in a fluency disorders class. In J. Au-Yeung, & M. M. Leahy (Eds.), Research, treatment, and self-help in fluency disorders: New Horizons. Proceedings of the Fifth World Congress on Fluency Disorders (pp. 236-243). International Fluency Association, Electronic publication.

[43]

Reichel, I. K., & St. Louis, K. O. (2011). Effects of multidisciplinary curricula in graduate fluency disorders courses. San Diego, CA: Seminar presented at the Annual Convention of the American Speech-Language-Hearing Association.

[44]

Rodríguez A., Cervera M., Peris J. E., & Peña L. E. (2008). The same treatment for transgenic shoot regeneration elicits the opposite effect in mature explants from two closely related sweet orange (Citrus sinensis (L.) Osb.) genotypes. Plant Cell, Tissue and Organ Culture, 93, 97-106.

[45]

Smith, G. (2016). A fallacy that will not die. The Journal of Investing, 25, 7-15.

[46]

Snyder, G. J. (2001). Exploratory research in the measurement and modification of attitudes toward stuttering. Journal of Fluency Disorders, 26, 149-160.

[47]

Spears S., Hudock D., Ramsdell-Hudock H., Altieri N., Vereen L. G., & St. Louis, K. O. (2015). The effect of pseudostuttering on clinicians’ attitudes before participating in an interprofessional intensive stuttering clinic. Denver, CO: Poster presented at the Annual Convention of the American Speech-Language-Hearing Association.

[48]

St. Louis, K. O. (2011). The public opinion survey of human attributes-stuttering (POSHA-S): Summary framework and empirical comparisons. Journal of Fluency Disorders, 36, 256-261.

[49]

St. Louis K.O. E.F. Aliveto M. Teymouri Sangani S. Abdi H. Rezai . F. Abdalla A. Przepiórka A. Błachnio K. Węsierska L. Junuzović-Zunić S. Eisert C.K. Roche I. Reichel A. Beste-Guldborg T. Flynn B. Bolton S. Gottwald S. Spears Hudock K.N. Johnson

[50]

(in press). Measuring public attitudes toward stuttering: Test-retest reliability revisited Clinical Archives of Communication Disorders.

[51]

St. Louis, K. O. (2012). POSHA-S public attitudes toward stuttering: Online versus paper surveys. Canadian Journal of Speech-Language Pathology and Audiology, 36, 116-122.

[52]

St. Louis, K. O. (2012). Research and development for a public attitude instrument for stuttering. Journal of Communication Disorders, 45, 129-146.

[53]

St. Louis, K. O. (2015). Epidemiology of public attitudes toward stuttering. In K. O. St. Louis (Ed.), Stuttering meets stereotype, stigma, and discrimination: An overview of attitude research (pp. 7-42). Morgantown, WV: West Virginia University Press.

[54]

St. Louis, K. O. (2020). Comparing and predicting public attitudes toward stuttering, obesity, and mental illness. American Journal of Speech-Language Pathology, 29, 2023-2038. https://doi.org/10.1044/2020_AJSLP-20-00038

[55]

St. Louis, K. O., & Enoch, M. B. (2012). Stuttering coursework influences on undergraduate student attitudes. Atlanta, GA: Poster presented at the Annual Convention of the American Speech-Language-Hearing Association.

[56]

St. Louis K. O., Lubker B. B., Yaruss J. S., Adkins T. A., & Pill J. C. (2008). Development of a prototype questionnaire to survey public attitudes toward stuttering: Principles and methodologies in the first prototype. The Internet Journal of Epidemiology, 5(2). 〈https://ispub.com/IJE/5/2/7561〉.

[57]

St. Louis K. O., Lubker B. B., Yaruss J. S., & Aliveto E. F. (2009). Development of a prototype questionnaire to survey public attitudes toward stuttering: Reliability of the second prototype. Contemporary Issues in Communication Sciences and Disorders, 36, 101-107.

[58]

St. Louis K. O., Przepiórka A. M., Beste-Guldborg A., Williams M. J., Błachnio A., Guendouzi J., Reichel I. K., & Ware M. B. (2014). Stuttering attitudes of students: Professional, intracultural, and international comparisons. Journal of Fluency Disorders, 39, 34-50.

[59]

St. Louis K. O., Reichel I., Yaruss J. S., & Lubker B. B. (2009). Construct and concurrent validity of a prototype questionnaire to survey public attitudes toward stuttering. Journal of Fluency Disorders, 34, 11-28.

[60]

St. Louis K. O., Remley C. L., & Hancock B. R. (2010). POSHA: Test-retest reliability of the final version. Philadelphia, PA: Poster presented at the Annual Convention of the American Speech-Language-Hearing Association.

[61]

St. Louis, K. O., & Roberts, P. M. (2010). Measuring attitudes toward stuttering: English-to-French translations in Canada and Cameroon. Journal of Communication Disorders, 43, 361-377.

[62]

St. Louis, K. O., & Roberts, P. M. (2013). Public attitudes toward mental illness in Africa and North America. African Journal of Psychiatry, 16, 123-133.

[63]

St. Louis K. O., Sønsterud H., Junuzovic L., Tomaiuoli D., Del Gado F., Caparelli E., Theiling M., Flobakk C., Helmen L. N., Heitmann R. R., Kvenseth H., Nilsson S., Wetterling T., Lundström C., Daly C., Leahy M., Tyrell L., Ward D., & Węsierska M. (2016). Public attitudes toward stuttering in Europe: Within-country and between-country comparisons. Journal Communication Disorders, 62, 115-130.

[64]

St. Louis K. O., Węsierska K., & Polewczyk I. (2018). Improving Polish stuttering attitudes: An experimental study of teachers and university students. American Journal of Speech-Language Pathology, 27, 1195-1210.

[65]

St. Louis,K. O., Węsierska, K., Przepiórka, A., Błachnio, A., Beucher, C., Abdalla, F., Flynn, T., Reichel, I., Beste-Guldborg, A., Junuzović-Zunić L., Gottwald, S., Hartley, J., Eisert, S., Johnson, K., Bolton, B., Teimouri Sangani, M., Rezai, H., Abdi, S., Pushpavathi, M., & Aliveto, E.(2020). Success in changing stuttering attitudes: A retrospective study of 29 intervention samples. Journal of Communication Disorders, 84(1-18), Article 105972.

[66]

St. Louis K. O., Williams M. J., Ware M. B., Guendouzi J., & Reichel I. (2014). The public opinion survey of human attributes-stuttering (POSHA-S) and Bipolar Adjective Scale (BAS): Aspects of validity. Journal of Communication Disorders, 50, 36-50.

[67]

Stork, K., & Johnson, K. (2016). Effects of interviewing a person who stutters on SLP students’ attitudes toward stuttering. Houston, TX: Unpublished manuscript. University of Houston.

[68]

Sweller J., Ayers P. L., Kalyuga S., & Chandler P. (2003). The expertise reversal effect. Educational Psychologist, 38, 23-31.

[69]

Trochim, W.M.K. (2020). Regression to the mean. Web Center for Social Research Methods (2021). 〈https://www.socialresearchmethods.net/kb/regrmean.php.〉.

[70]

Valente A. R. S., Jesus L. M. T., Roberto M. T., Leahy M. M., & St. Louis, K. O. (2016). Cross-cultural adaptation of the Public Opinion Survey of Human Attributes-Stuttering (POSHA-S): The European Portuguese (EP) translation and adaptation process as a model. In D. Santiago (Ed.), Stuttering: Risk factors, public attitudes and impact on psychological well-being (pp. 93-110). Hauppauge, NY: Nova Science Publishers.

[71]

Weidner, M.E. & St. Louis, K.O. (2023). Changing public attitudes toward stuttering. In H. Sønsterud & K. Węsierska (Eds.). Dialogue without barriers-A comprehensive speech therapy intervention in stuttering (English Version). Chorzów, Poland: Agere Aude Foundation for Knowledge and Social Dialogue. https://www.logolab.edu.pl/dialogue-without-barriers-a-comprehensive-approach-to-dealing-with-stuttering-english-version/.

[72]

Weidner M. E., St. Louis K. O., & Glover H. L. (2018). Changing nonstuttering preschool children’s stuttering attitudes. In American Journal of Speech-Language Pathology, 27 pp. 1445-1457).

[73]

Węsierska K., Błachnio A., Przepiórka A., & St. Louis K.O. (2015, October). Zmiana postaw wobec jąkania w Polsce-wstępne doniesienia z badań [Changing attitudes towards stuttering in Poland: Preliminary study report]. Paper presented at the International Conference on Speech-Language Therapy: Modern Trends in Logopaedic Diagnosis and Therapy. Chorzów, POLAND.

[74]

West S. G., Finch J. F., & Curran P. J. (1995). Structural equation models with nonnormal variables: Problems and remedies. In R. H. Hoyle (Ed.), Structural equation modeling: Concepts, issues, and applications (pp. 56-75). Thousand Oaks, CA, US: Sage Publications, Inc.

[75]

Woods, C. L., & Williams, D. E. (1976). Traits attributed to stuttering and normally fluent males. Journal of Speech and Hearing Research, 19, 267-278.

[76]

Zhang, X., & Tomblin, J. B. (2004). Explaining and controlling regression to the mean in longitudinal research designs. Journal of Speech, Language, and Hearing Research, 46, 1340-1351.

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