Objective: To assess the convergent validity and reliability of joint angle measurements from a new video goniometer iPhone/iPad application separately in adults, older and young children. Design: Cross-sectional. Setting: Child care and university environments. Participants: Fifty-four adults (mean SD=22.5 [plus or minus] 4.5y), 20 older children…

Age of acquisition (AoA) is a measure of word complexity which refers to the age at which a word is typically learned. AoA measures have shown strong correlations with reading comprehension, lexical decision times, and writing quality. AoA scores based on both adult and child data have limitations that allow for error in measurement, and increase…

Reading motivation is a critical contributor to reading achievement and has the potential to influence its development. Educators, researchers, and evaluators need to select the best reading motivation scales for their research and classroom. The goals of this review were to identify a set of reading motivation student self-report scales used in…

Among individuals experiencing internalizing psychopathology, high levels of emotion reactivity--the degree to which they experience emotions strongly or intensely, over extended periods of time, and as elicited by a variety of stimuli--increase risk for self-injurious thoughts and behaviors. Researchers developed the Emotion Reactivity Scale…

Individuals with better spatial thinking have increased interest and greater achievement in science, technology, engineering, and mathematics (STEM) disciplines (Wai, Lubinski, & Benbow, 2009). This relationship means that STEM education may benefit from leveraging spatial thinking, but measures of spatial thinking as they relate to specific…