Although gesturing onscreen instructors are widely included in video lectures, it is still unclear whether, when, and how they are conducive to learning. To clarify this issue, we conducted a set of three-level meta-analyses of 662 effect sizes from 83 articles, spanning Web of Science, PsycINFO, ERIC, Education Research Complete, ProQuest…

The population of students who are deaf/hard of hearing (D/HH) that have additional disabilities remains at over 40 per cent. One population of particular concern is the group of D/HH students with a comorbid diagnosis of autism spectrum disorders (ASD). The prevalence of ASD in the D/HH population is 1 in 59 (Szymanski et al., 2012. "Deaf…

This article contains a literature review of evidence of large prosodic domains that correspond to syntactic units such as a clause or a sentence. In particular, different phonetic nonmanual cues that may relate to clause or sentence boundaries are discussed in detail. On the basis of various ideas and views in the literature, we also describe two…