The ASL-CDI 2.0: an updated, normed adaptation of the MacArthur Bates Communicative Development Inventory for American Sign Language

Vocabulary is a critical early marker of language development. The MacArthur Bates Communicative Development Inventory has been adapted to dozens of languages, and provides a bird’s-eye view of children’s early vocabularies which can be informative for both research and clinical purposes. We present an update to the American Sign Language Communicative Development Inventory (the ASL-CDI 2.0, https://www.aslcdi.org), a normed assessment of early ASL vocabulary that can be widely administered online by individuals with no formal training in sign language linguistics. The ASL-CDI 2.0 includes receptive and expressive vocabulary, and a Gestures and Phrases section; it also introduces an online interface that presents ASL signs as videos. We validated the ASL-CDI 2.0 with expressive and receptive in-person tasks administered to a subset of participants. The norming sample presented here consists of 120 deaf children (ages 9 to 73 months) with deaf parents. We present an analysis of the measurement properties of the ASL-CDI 2.0. Vocabulary increases with age, as expected. We see an early noun bias that shifts with age, and a lag between receptive and expressive vocabulary. We present these findings with indications for how the ASL-CDI 2.0 may be used in a range of clinical and research settingsAccepted manuscrip

Death and Politics: The Role of Demographic Characteristics and Testimony Type in Death Penalty Cases Involving Future Dangerousness Testimony

Past research examining expert future dangerousness prediction testimony in death penalty cases and civil confinement hearings for sex offenders has found that jurors tend to be more persuaded by less scientific “clinical” testimony and less influenced by “actuarial” based testimony. Jurors demonstrate greater receptivity for clinical testimony despite the fact that actuarial testimony has been shown to be a better predictor of future dangerousness. Research in this area has focused on identifying cognitive factors that can potentially be manipulated during a trial to increase the effectiveness of actuarial testimony on jurors. A mock jury study was conducted to extend these findings and identify demographic characteristics that predict juror responsiveness to the more scientifically reliable actuarial testimony. The results indicate that political orientation may operate in a counterintuitive manner and should be carefully considered during voir dire in cases where future dangerousness testimony is presented

Lexical recognition in deaf children learning ASL: activation of semantic and phonological features of signs

Children learning language efficiently process single words and activate semantic, phonological, and other features of words during recognition. We investigated lexical recognition in deaf children acquiring American Sign Language (ASL) to determine how perceiving language in the visual–spatial modality affects lexical recognition. Twenty native or early‐exposed signing deaf children (ages 4 to 8 years) participated in a visual world eye‐tracking study. Participants were presented with a single ASL sign, target picture, and three competitor pictures that varied in their phonological and semantic relationship to the target. Participants shifted gaze to the target picture shortly after sign offset. Participants showed robust evidence for activation of semantic but not phonological features of signs. However, in their behavioral responses, participants were most susceptible to phonological competitors. Results demonstrated that single word recognition in ASL is largely parallel to spoken language recognition among children who are developing a mature lexicon.Accepted manuscrip

The development and evaluation of a new ASL text comprehension task

Being able to comprehend a language entails not only mastery of its syntax, lexicon, or phonology, but also the ability to use language to construct meaning, draw inferences, and make connections to world knowledge. However, most available assessments of American Sign Language (ASL) focus on mastery of lower level skills, and as a result little is known about development of higher-order ASL comprehension skills. In this paper, we introduce the American Sign Language Text Comprehension Task (ASL-CMP), a new assessment tool to measure ASL text comprehension ability in deaf children. We first administered the task to a group of deaf children with deaf parents (n = 105, ages 8–18 years) in order to evaluate the reliability and validity of the task, and to develop norms. We found that the ASL-CMP has acceptable levels of internal consistency, difficulty, and discriminability. Next, we administered the task to an additional group of deaf children with hearing parents (n = 251, ages 8–18 years), and found that the ASL-CMP is sensitive to expected patterns: older children have better ASL text comprehension skills, literal questions are generally easier to answer than inferential questions, and children with early exposure to ASL generally outperform those with delayed exposure. We conclude that the ASL-CMP task is reliable and valid and can be used to characterize ASL text comprehension skills in deaf children.https://doi.org/10.3389/fcomm.2020.00025Published versio

Toddlers' word learning through overhearing: others' attention matters.

In laboratory settings children are able to learn new words from overheard interactions, yet in naturalistic contexts this is often not the case. We investigated the degree to which joint attention within the overheard interaction facilitates overheard learning. In the study, 20 2-year-olds were tested on novel words they had been exposed to in two different overhearing contexts: one in which both interlocutors were attending to the interaction and one in which one interlocutor was not attending. Participants learned the new words only in the former condition, indicating that they did not learn when joint attention was absent. This finding demonstrates that not all overheard interactions are equally good for word learning; attentive interlocutors are crucial when learning words through overhearing.R01 DC015272 - NIDCD NIH HHS; T32 DC013017 - NIDCD NIH HHSAccepted manuscript2021-06-0

How U.S. Ocean Policy and Market Power Can Reform the Coral Reef Wildlife Trade

As the world’s largest importer of marine ornamental species for the aquaria, curio, home décor, and jewelry industries, the United States has an opportunity to leverage its considerable market power to promote more sustainable trade and reduce the effects of ornamental trade stress on coral reefs worldwide. Evidence indicates that collection of some coral reef animals for these trades has caused virtual elimination of local populations, major changes in age structure, and promotion of collection practices that destroy reef habitats. Management and enforcement of collection activities in major source countries such as Indonesia and the Philippines remain weak. Strengthening US trade laws and enforcement capabilities combined with increasing consumer and industry demand for responsible conservation can create strong incentives for improving management in source countries. This is particularly important in light of the March 2010 failure of the parties to the Convention on International Trade in Endangered Species (CITES) to take action on key groups of corals

A Safety Assessment of the Re-opening of an Academic Medical Center Outpatient Endoscopy Unit During the COVID-19 Pandemic

This study aimed to assess outcomes and satisfaction among patients undergoing outpatient endoscopic procedures during the COVID-19 pandemic Identifying the rates of COVID-19 symptom development and post procedure testing would provide critical information on patient safety Assessment of patient experiences would serve as a guide for potential areas of improvement We predicted that with proper protocols in place, outpatient endoscopy was a safe and positive experienc