Rajinder Koul

Prof. Dr. Rajinder Koul


Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 July 2019 in Health SA Gesondheid
Verified
Journal Article
Open access
MGMartelize Gropp
Martelize Gropp
EJEnsa Johnson
Ensa Johnson
Juan BornmanJuan Bornman
Juan Bornman
RKRajinder Koul
Rajinder Koul
Background: Communication in the intensive care setting (ICS) is critical for both the patient and the medical staff to provide efficient care and thus alleviate possible patient adverse effects. Persons with complex communication needs are particularly vulnerable in ICSs and therefore require additional communication support.Aim: This study focused on the perspectives of nurses about communication with patients with communication needs in ICSs using paper-based communication boards, namely the translated Vidatak EZ Board, before and after a training session.Setting: A 1650-bed public hospital with a 26-bed ICS in a semi-urban, low socio-economic area in South Africa served as the research setting.Methods: A quasi-experimental pre-test post-test group design with withdrawal and a control group was used. Data were gathered using a custom-designed questionnaire completed by ICS nurse participants recruited from a public hospital.Results: Responses of some nurses did not change in post-test 1, but their responses did change in post-test 2. Some of the nurses’ perspectives changed, as expected from the pre-test to post-test 1. Nurses recommended specific adaptations to the communication board.Conclusions: Most nurses agreed that communication is crucial in ICSs and that a communication board can be implemented; however, limited success was observed implementing the board following a short training. The inter-professional collaboration between nurses and speech-language therapists to provide optimal health care to patients in ICS is emphasised.

4 November 2021 in American Journal of Speech-Language Pathology
Verified
Journal Article
Closed access
TETiffany Chavers Edgar
Tiffany Chavers Edgar
MMMadison Morris
Madison Morris
RSRalf W. Schlosser
Ralf W. Schlosser
RKRajinder Koul
Rajinder Koul
Purpose: The purpose of this study was to determine the effects of augmentative and alternative communication (AAC) intervention using a speech-generating device (SGD) on acquisition, maintenance, and generalization of multistep requesting and generic small talk in three children with severe autism spectrum disorder (ASD) between the ages of 7 and 13 years. Method: A multiple-baseline design across participants combined with a posttreatment multiple-generalization-probe design was used to assess acquisition, generalization, and maintenance of target communicative behaviors with the experimenter and the participants' familiar communication partners (FCPs). Intervention was composed of systematic instruction in the use of an SGD using least-to-most prompting, constant time delay, error correction, and reinforcement. Results: Visual analysis established a strong functional relationship between the independent variable and the two dependent variables (i.e., requesting preferred activities, engaging in generic small talk) for all three participants. Effect size indicator analyses corroborated these findings, indicating strong effects for performing multistep requesting and medium effects for engaging in generic small talk. All participants were able to generalize the acquired communicative behaviors to request new and untrained snacks and activities and engage in generic small talk with FCPs who were not part of the training. Maintenance of acquired communicative behaviors was demonstrated 3 weeks post completion of intervention. Conclusion: This study provides preliminary evidence that AAC intervention using an SGD and incorporating least-to-most prompting, constant time delay, error correction, and reinforcement is effective in terms of multistep requesting and generic small talk behaviors in children with severe ASD. Supplemental Material: https://doi.org/10.23641/asha.16663630

7 September 2022 in American Journal of Speech-Language Pathology
Verified
Journal Article
Closed access
TETiffany Chavers Edgar
Tiffany Chavers Edgar
RSRalf W. Schlosser
Ralf W. Schlosser
CCCissy Cheng
Cissy Cheng
RKRajinder Koul
Rajinder Koul
Purpose: This scoping review aimed to map the literature on the effects of interventions involving speech output technologies on communication outcomes for individuals with developmental disabilities other than autism spectrum disorder. Method: A scoping review methodology was used to limit bias in searching, selecting, coding, and synthesizing relevant intervention studies. This involved a multifaceted search for studies conducted between 1991 and March 2021 using various electronic databases, ancestry searches, and forward citation searches from selected articles. Studies had to meet stringent inclusion criteria. Each study was summarized in terms of authors, purpose, participants, design, speech output, outcomes, effectiveness, and quality appraisal. Results: Twenty-five single-case experimental design studies (88 participants) and one group design studies (62 participants) qualified for inclusion. Most of the participants had multiple diagnoses followed by a diagnosis of cerebral palsy and Down syndrome. Most studies focused on requesting behaviors and to a much lesser extent on syntactic structure and word identification. A dearth of high-quality studies was identified. Conclusions: Overall, there is a paucity of high-quality research investigating the effects of speech output technologies for children with developmental disabilities. Additionally, several directions for future research are posited. Supplemental Material: https://doi.org/10.23641/asha.20468928

CYChristina Yu
Christina Yu
RSRalf W. Schlosser
Ralf W. Schlosser
MVMauricio Fontana de Vargas
Mauricio Fontana de Vargas
LWLeigh Anne White
Leigh Anne White
RKRajinder Koul
Rajinder Koul
HSHoward C. Shane
Howard C. Shane
As artificial intelligence (AI) makes significant headway in various arenas, the field of speech–language pathology is at the precipice of experiencing a transformative shift towards automation. This study introduces QuickPic AAC, an AI-driven application designed to generate topic-specific displays from photographs in a “just-in-time” manner. Using QuickPic AAC, this study aimed to (a) determine which of two AI algorithms (NLG-AAC and GPT-3.5) results in greater specificity of vocabulary (i.e., percentage of vocabulary kept/deleted by clinician relative to vocabulary generated by QuickPic AAC; percentage of vocabulary modified); and to (b) evaluate perceived usability of QuickPic AAC among practicing speech–language pathologists. Results revealed that the GPT-3.5 algorithm consistently resulted in greater specificity of vocabulary and that speech–language pathologists expressed high user satisfaction for the QuickPic AAC application. These results support continued study of the implementation of QuickPic AAC in clinical practice and demonstrate the possibility of utilizing topic-specific displays as just-in-time supports.

2 January 2023 in Augmentative and Alternative Communication
Verified
Journal Article
Closed access
RSRalf W. Schlosser
Ralf W. Schlosser
RKRajinder Koul
Rajinder Koul
Augmentative and alternative communication (AAC) approaches offer expressive and receptive supports for the segment of the population of individuals with autism spectrum disorder (ASD) who have little or no functional speech. The National Center for Autism Evidence and Practice (NCAEP) declared augmentative and alternative communication (AAC) interventions for individuals with autism an “evidence-based practice.” Following a brief analysis of the breakdown of studies included in NCAEP by dependent variable, we introduce each of the four papers published as part of this special issue on Advances in Augmentative and Alternative Communication Research for Individuals with Autism Spectrum Disorder. In addition to elucidating the contributions and advances of each paper to the research base, including the NCAEP report, we provide a critical commentary as applicable in the hopes of stimulating and guiding further research.

14 October 2022 in Current Developmental Disorders Reports
Verified
Journal Article
Closed access
PDF file
RSRalf W. Schlosser
Ralf W. Schlosser
NCNicole Choe
Nicole Choe
RKRajinder Koul
Rajinder Koul
HSHoward C. Shane
Howard C. Shane
CYChristina Yu
Christina Yu
MWMengxuan Wu
Mengxuan Wu