The Impact of Continuity Violation on ANOVA and Alternative Methods

Lantz, Björn

doi:10.22237/jmasm/1383278700

Cited by 4 publications

(5 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Even though the questionnaire yielded ordinal data, parametric analyses were used because our data was normally distributed. ANOVA analyses are relatively insensitive to violations of equidistance if assumptions of normality are met (Lantz, 2013). The ANOVAs showed a significant effect for two of the four variables, namely: anxiety ( F (2,38) = 3.56, p < .05, multivariate eta squared = 0.16) and success ( F (2,38) = 5.02, p < .05, multivariate eta squared = 0.21).…”

Section: Resultsmentioning

confidence: 99%

Affective factors influencing fluent performance: French learners’ appraisals of second language speech tasks

Kormos

Préfontaine

2016

Language Teaching Research

View full text Add to dashboard Cite

Affective factors influencing fluent performance: French learners' appraisals of second language speech tasks AbstractThe present mixed-methods study examined the role of learner appraisals of speech tasks in L2 French on the fluency of their speech as well as expert rater's perceptions of their fluency. Forty adult learners in a Canadian immersion programme participated in the study which compared four sources of data: (1) participants' performances of three narrative tasks differing in their conceptualization and formulation demands, (2) a questionnaire on their interest, task-related anxiety, task motivation, and perceived success in task-completion, (3) an interview in which they elaborated on their perceptions of the tasks, and (4) ratings of their performances by three native speakers. Findings showed the cognitive demands of tasks were associated with learners' affective responses to tasks as well as objective and subjective measures of performance. Furthermore, task-related anxiety and perceived success in task completion were the most important affective factors associated with fluent task performance, whereas interest and task motivation were correlated with native speakers' fluency ratings. These results are discussed in terms of how task design and implementation can contribute to enhanced task motivation and performance in the classroom.

show abstract

Section: Resultsmentioning

confidence: 99%

Affective factors influencing fluent performance: French learners’ appraisals of second language speech tasks

Kormos

Préfontaine

2016

Language Teaching Research

View full text Add to dashboard Cite

show abstract

“…Thus, we opted to use one-way ANOVAs to compare the means of the survey item responses. ANOVAs have been shown to be the best approach when data are skewed and sample sizes are equal, as they are for the three dosage groups, and when scale points are perceived as equidistant (Lantz, 2013). A nonparametric Kruskal-Wallis test was also run as a robustness check and in case middle-of scale effects were at play (Lantz, 2013); results were the same as for the one-way ANOVAs.…”

Section: Discussionmentioning

confidence: 99%

“…ANOVAs have been shown to be the best approach when data are skewed and sample sizes are equal, as they are for the three dosage groups, and when scale points are perceived as equidistant (Lantz, 2013). A nonparametric Kruskal-Wallis test was also run as a robustness check and in case middle-of scale effects were at play (Lantz, 2013); results were the same as for the one-way ANOVAs. iv Due to the challenges in obtaining responses from staff at a random sample of colleges attended by PUPP alumni, researchers opted to use a convenience sample to obtain sufficient interview data to complete the study.…”

Section: Discussionmentioning

confidence: 99%

The Benefits of Infusing the Arts in a College Preparatory Program

Millett¹,

Kevelson²,

Mirakhur³

2022

Journal for Learning through the Arts

View full text Add to dashboard Cite

An extensive body of work has demonstrated the benefits of participating in the arts, including when it is integrated into other disciplines, for young adults. In addition, this work highlights the likely advantages of engagement with the arts for students from low-income backgrounds as they transition into elite postsecondary institutions. Such findings have shaped the organization of the Princeton University Preparatory Program (PUPP), a rigorous academic and cultural enrichment program which supports high-achieving, low-income public high school students, from the communities surrounding campus, prepare for admission to and success at selective colleges and universities. More specifically, PUPP provides its scholars with a studio art course during each of their three summers in the program and school-year trips to performances and museums. During their time in PUPP, scholars attend approximately 21 live performances and visit at least six different art museums.In this paper, we add to the literature on art integration by examining whether, and how, the views of PUPP scholars on the arts programming they receive change over their time in the program. We also assess the PUPP alumni's perceptions of the extent to which PUPP's art and cultural activities influenced them. Taken together, these analyses of survey data help us understand whether there are differences in student views by the amount of art programming they receive ("dosage") and if there are sustained benefits of the arts integration and programming PUPP students receive ("fade-out"). We supplement this quantitative data with information from focus groups with a variety of stakeholders."The arts are not just a nice thing to have; they define who we are as a people" (Swarns, 2009, May 18) -Michelle Obama, Former First Lady of the United States and Princeton University Class of 1985In her I'm First video (The Obama White House, 2014, Feburary 4), Michelle Obama openly talks about some of the challenges she faced in her first year at Princeton University, such as not knowing how to pick classes or to bring the appropriately-sized sheets for dorm room beds. She acknowledged that her family did not have a history of participating in higher education, so being at a place like Princeton was quite new to her. As Mrs. Obama's story illustrates, finding success in college is a challenging endeavor, particularly for students who are the first in their families to attend. In this context, college access programs play an important role in bridging the divide between high school and postsecondary environments for many firstgeneration students. Many programs, including the one we study, support students in this transition by equipping them with not just the academic tools, but also with the cultural knowledge that is often assumed on college campuses. We study the importance of arts exposure and participation in a college access program for low-income, high-achieving students, with the aim of supporting selective college opportunity and success for first-generation a...

show abstract

“…Apesar de algumas referências indicarem a robustez da ANOVA para pequenos desvios de normalidade (SHARPE, 1970;HARWELL et al 1992;FARAWAY, 2006), estudos mais recentes revelam o impacto causado na violação dessa pressuposição (KHAN;RAYNER, 2003;SCHMIDER et al, 2010;LANTZ, 2013aLANTZ, , 2013b. Isso, aliado à difícil determinação dos limites para pequenos desvios de normalidade, permite inferir que a ANOVA não deveria ser executada quando os resíduos não seguem a distribuição Normal.…”

Section: Discussionunclassified

“…Quando utilizada de forma consciente, a transformação angular se tornou um instrumento eficaz para o analista, numa possível solução do não atendimento às pressuposições. Apesar de ser apontada como solução para o uso seguro da ANOVA (COCHRAN, 1940;RAO, 1960;WINER et al, 1971), ela não pode ser tratada como única e nem ser empregada sem restrição ou análise crítica, pois pode piorar a análise, conforme mencionado anteriormenteisso demonstra que nem sempre a transformação de dados é suficiente para corrigir o não atendimento de uma pressuposição, necessitando o emprego de outras metodologias estatísticas, a exemplo dos MLG (LIX et al, 1996;LANTZ, 2013a) (SAKAMOTO et al, 1989).…”

Section: Discussionunclassified

Análise de experimentos de germinação usando os modelos lineares generalizados

Carvalho¹

View full text Add to dashboard Cite

Esta dissertação foi construída com o suporte de diversas pessoas, direta e indiretamente. Primeiramente agradeço a Deus, que sempre me proporcionou saúde, força, fé e paz de espírito para terminar esta trajetória. A minha Orientadora Denise Garcia de Santana pelos anos de orientação, companheirismo, ensinamentos, amizade, e pela paciência em me guiar pelo caminho correto da ciência. Ao Lúcio Borges de Araújo pelos atendimentos e auxílios estatísticos. A todos os membros do Instituto de Ciências Agrárias, tanto do Campus Umuarama quanto de Monte Carmelo. Pela banca avaliadora, por aceitarem participar e sugerirem melhorias ao trabalho. Agradeço também aos meus pais Maria Edna Janoni Carvalho e Antonio Manoel Carvalho pelo amor, ajuda e proteção nesta trajetória da vida. Ao meu irmão Rodrigo Janoni Carvalho pelo suporte, ajuda e estabilidade emocional que sempre me passou. A todo restante da minha família pelo suporte e carinho em especial minhas madrinhas Maria Neuza, Gisele, Marina, minha vó Erminia e meus falecidos avós Antero, Ana Carolina e João. Aos meus amigos que acompanharam toda esta trajetória de árduo trabalho, pela amizade, paciência e palavras de apoio. Agradeço em especial Paulo Vinícius Ribeiro pela ajuda na estruturação do trabalho. Cabe aqui o meu muito obrigado. Este trabalho também é de vocês! SUMÁRIO Página CAPÍTULO 1: As contribuições de Gauss e Fisher para os Modelos Lineares Generalizados.

show abstract

The Impact of Continuity Violation on ANOVA and Alternative Methods

Cited by 4 publications

References 16 publications

Affective factors influencing fluent performance: French learners’ appraisals of second language speech tasks

Affective factors influencing fluent performance: French learners’ appraisals of second language speech tasks

The Benefits of Infusing the Arts in a College Preparatory Program

Análise de experimentos de germinação usando os modelos lineares generalizados

Contact Info

Product

Resources

About