The butterfly theorem is proved by assigning point masses to the four vertices of the wings and using the distributive property of the mass centre of a mechanical system.

The development and score validation of the Self-Directed Learning for Exercise Scale (SDLES) will be explored. The SDLES instrument was tested on 368 autonomous exercisers and 217 novice exercisers. Scores from the instrument demonstrated a high level of validity support and predictive ability for categorizing exercisers.

e-Learning acceptance has received considerable attention in the educational technology literature. In recent years, many frameworks have been proposed, modified, and applied to better understand the factors underlying students' acceptance of e-learning. Despite the important progress made with the acceptance literature, extant empirical…

Individual person fit analyses provide important information regarding the validity of test score inferences for an "individual" test taker. In this study, we use data from an undergraduate statistics test (N = 1135) to illustrate a two-step method that researchers and practitioners can use to examine individual person fit. First, person…

The study is on performance measurement in academia. It aims at developing and validating the measurement scale for the performance of higher institutions. The items were developed based on the extant literature. Data were collected via an online survey in which a questionnaire link was sent to 269 vice chancellors/presidents of the sampled…

Objective: This study reports on the operationalization and testing of the newly developed Relationship Quality (RQ) scale, designed to assess an individual's perception of his or her RQ in their current partnership. Methods: Data were generated through extended sampling from an original U.K.-based research project, "Enduring Love? Couple…

While considerable research explores the phenomenon of early-career teacher retention, surprisingly few studies report long-term intervention strategies that attempt to resolve this issue. For context, the paper briefly describes one exception, a seven-year longitudinal project involving over 170 secondary teachers that provides mechanisms to help…

This article describes an informal study that focused on teaching eighth graders to take a critical stance and talk back to texts. In this era of "fake news," "alternative facts," and what has been called a "post-truth" culture, it is imperative that students do not simply accept everything they read, see, or hear at…

Behavior coding is used to detect issues in questionnaires by flagging interactions between survey respondents and interviewers when their interactions deviate from standardized interviewing. It has become a popular method for evaluating survey questionnaire quality and has been used mostly in Western countries, with little research being done in…

This article is a review of the current literature involving the use of serious games (SG) as a tool for training and faculty development. Noted in the review is the dearth of research into the adoption of SG for use specifically in higher education faculty development. The review looks at the viability of SG as teaching tools, the validity of SG…

Cognitive diagnosis models (CDMs) allow for the extraction of fine-grained, multidimensional diagnostic information from appropriately designed tests. In recent years, interest in such models has grown as formative assessment grows in popularity. Many dichotomous as well as several polytomous CDMs have been proposed in the last two decades, but…

Sensory sensitivity peculiarities represent an important characteristic of Autism Spectrum Disorders (ASD). We first validated a French language version of the Glasgow Sensory Questionnaire (GSQ) (Robertson and Simmons in "J Autism Dev Disord" 43(4):775-784, 2013). The GSQ score was strongly positively correlated with the Autism-Spectrum…

Purpose: The purposes of this study are to introduce the concept of vocal priorities based on acoustic correlates, to develop an instrument to determine these vocal priorities, and to analyze the pattern of vocal priorities in patients with voice disorders. Method: Questions probing the importance of 5 vocal attributes (vocal clarity, loudness,…

The "Perruchet effect" refers to a dissociation between the conscious expectancy of an outcome and the strength or speed of responding in anticipation of that outcome. This dissociation is considered by some to be the best evidence for multiple learning processes with expectancy governed by participants' explicit beliefs and responding…

The present study examined the factor structure of the Wechsler Intelligence Scale for Children-Fourth Edition, Spanish (WISC-IV Spanish, Wechsler, 2005a) with normative sample participants aged 6-16 years (N = 500) using confirmatory factor analytic techniques not reported in the WISC-IV Spanish Manual (Wechsler, 2005b). For the 10 core subtest…