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Ayars, Eric; Goff, Tori; Williams, Kirk – Physics Teacher, 2018
Quadcopters (also known as "drones") do not fly in vacuum. This is obvious enough that experimenting on one in a vacuum chamber would seem rather uninteresting, but there is one question that may be usefully addressed by such an experiment: the mechanism for yaw control. Quadcopters control yaw (rotation about the vertical axis) by…
Descriptors: Physics, Science Instruction, Teaching Methods, Science Experiments
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Visentin, Chiara; Prodi, Nicola – Journal of Speech, Language, and Hearing Research, 2018
Purpose: The primary aim of this study was to develop and examine the potentials of a new speech-in-noise test in discriminating the favorable listening conditions targeted in the acoustical design of communication spaces. The test is based on the recognition and recall of disyllabic word sequences. A secondary aim was to compare the test with…
Descriptors: Speech, Acoustics, Listening, Reaction Time
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Olson, Kristina R.; Enright, Elizabeth A. – Developmental Science, 2018
In the present work, we ask whether socially transitioned, transgender children differ from other children in their endorsement of gender stereotypes and response to others' gender nonconformity. We compare transgender children (N = 56) to a group of siblings of transgender children (N = 37), and a group of unrelated control participants (N = 56)…
Descriptors: Sexual Identity, Sex Stereotypes, Children, Siblings
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Gardner, Paul; Kuzich, Sonja – Cambridge Journal of Education, 2018
This paper draws on findings of comparative international research on students' poetic writing about the natural environment in the context of the classroom and a naturalistic setting. The study involved 97, nine- to 10-year-olds in four classes: two classes were in an English primary school with their counterparts in a Western Australian primary…
Descriptors: Foreign Countries, Poetry, Writing (Composition), Physical Environment
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Green, Samuel; Xu, Yuning; Thompson, Marilyn S. – Educational and Psychological Measurement, 2018
Parallel analysis (PA) assesses the number of factors in exploratory factor analysis. Traditionally PA compares the eigenvalues for a sample correlation matrix with the eigenvalues for correlation matrices for 100 comparison datasets generated such that the variables are independent, but this approach uses the wrong reference distribution. The…
Descriptors: Factor Analysis, Accuracy, Statistical Distributions, Comparative Analysis
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Lacy, Michael G.; Snodgrass, Jeffrey G.; Meyer, Mary C.; Dengah, H. J. Francois, II; Benedict, Noah – Field Methods, 2018
The most widely used formal approach to culture, the cultural consensus theory (CCT) of Romney, Weller, and Batchelder, originally relied on a priori definitions of cultural groups to map their unity and diversity. Retaining key features of classical CCT, we provide techniques to identify two or more cultural subgroups in a sample, whether those…
Descriptors: Culture, Subcultures, Cultural Differences, Theories
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Beyerlein, Kraig; Barwis, Peter; Crubaugh, Bryant; Carnesecca, Cole – Sociological Methods & Research, 2018
The National Study of Protest Events (NSPE) employed hypernetwork sampling to generate the first-ever nationally representative sample of protest events. Nearly complete information about various event characteristics was collected from participants in 1,037 unique protests across the United States in 2010 to 2011. The first part of this article…
Descriptors: Activism, National Surveys, Sampling, Comparative Analysis
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Wang, Mei; Sun, Guangwen; Chang, Yaping; Jin, Yanling; Leenus, Alvin; Maaz, Muhammad; Li, Guowei; Bhatt, Meha; Abbade, Luciana P. F.; Nwosu, Ikunna; Zielinski, Laura; Sanger, Nitika; Bantoto, Bianca; Luo, Candice; Shams, Ieta; Shahid, Hamnah; Adachi, Jonathan; Mbuagbaw, Lawrence; Levine, Mitchell; Samaan, Zainab; Thabane, Lehana – Research on Social Work Practice, 2018
Behavioral and social sciences randomized controlled trials (BSSTs) have a significant role in life sciences. Choosing an appropriate control or comparator group for BSSTs is critical, to provide true intervention effects. The objective of this study was to determine the types of control groups used in BSSTs, and the rationale provided to justify…
Descriptors: Randomized Controlled Trials, Databases, Behavioral Science Research, Social Science Research
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Bailey, Scott; Qualls, Barbara – AASA Journal of Scholarship & Practice, 2018
This study investigated the alignment between Texas superintendents' perceptions of the necessary professional characteristics of principals through the hiring process and the ELCC principal standards and the Texas principal certification standards. Texas superintendents were surveyed and interviewed to create a framework comparing their…
Descriptors: Comparative Analysis, Superintendents, Standards, Principals
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Bailey, Bruce W.; LeCheminant, Gabrielle; Hope, Timothy; Bell, Mathew; Tucker, Larry A. – Measurement in Physical Education and Exercise Science, 2018
The study compared the agreement, internal consistency, and measurement stability of the GE iDXA, BOD POD, and InBody 720. Body composition of 43 men and 37 women (31.4 ± 10.7 years; 90% Caucasian and 10% other) was assessed in triplicate using each method over two different days. Mean percent body fat (% BF) of the participants was different for…
Descriptors: Body Composition, Measurement Equipment, Reliability, Comparative Analysis
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Lundine, Jennifer P.; Harnish, Stacy M.; McCauley, Rebecca J.; Blackett, Deena Schwen; Zezinka, Alexandra; Chen, Wei; Fox, Robert A. – Language, Speech, and Hearing Services in Schools, 2018
Purpose: Summarizing expository passages is a critical academic skill that is understudied in language research. The purpose of this study was to compare the quality of verbal summaries produced by adolescents for 3 different discourse types and to determine whether a composite measure of cognitive skill or a test of expressive syntax predicted…
Descriptors: Adolescents, Predictor Variables, Comparative Analysis, Expressive Language
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Abney, Drew H.; Dale, Rick; Louwerse, Max M.; Kello, Christopher T. – Cognitive Science, 2018
Recent studies of naturalistic face-to-face communication have demonstrated coordination patterns such as the temporal matching of verbal and non-verbal behavior, which provides evidence for the proposal that verbal and non-verbal communicative control derives from one system. In this study, we argue that the observed relationship between verbal…
Descriptors: Verbal Communication, Nonverbal Communication, Comparative Analysis, Interpersonal Communication
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Haans, Antal – Practical Assessment, Research & Evaluation, 2018
Contrast analysis is a relatively simple but effective statistical method for testing theoretical predictions about differences between group means against the empirical data. Despite its advantages, contrast analysis is hardly used to date, perhaps because it is not implemented in a convenient manner in many statistical software packages. This…
Descriptors: Comparative Analysis, Statistical Analysis, Matrices, Computer Software
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Porter, Russell; Berry, Jeremy; Cude, Kellie; Anderson, Stephen; Britt, Sanfrena – Educational Gerontology, 2018
This is the third study of Cognitive Care Education in New York State nursing homes using cross-sectional methods over a 25 year period. The data indicate that the Cognitive Care Education increased at statistically significant levels, albeit by evolutionary means. It is now time for "A Revolutionary Change," for Cognitive Care…
Descriptors: Case Studies, Nursing Homes, Residential Care, Cognitive Ability
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Busquets, Joan – Journal of Psycholinguistic Research, 2018
This paper considers the anaphoric status of the pro-form "fer-ho" (do it) in Catalan [This paper contains some ideas included in Busquets (2005)]. I discuss some anaphoric properties of "fer-ho" as deep anaphora. I also compare these properties to those of other types of anaphora, like VPE and pseudogapping (pg). I show that…
Descriptors: Romance Languages, Semantics, Comparative Analysis, Language Research
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