Nikolaos Trimmis
Associate Professor
Research Interests
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About
Dr. Nikolaos Trimmis is an Associate Professor at the University of Patras, Greece. His research areas include language development in children, quality of life in patients with communication disorders, and caregivers' well-being, as reflected in his recent publications. His work also addresses misconceptions related to epilepsy and insights into bilingualism's effects on children with Autism Spectrum Disorder.
Articles (12)
Year:
2025
Year:
2025
Year:
2025
Year:
2024
Year:
2024
Year:
2024
Year:
2024
Year:
2023
(1) Background: The study aimed to construct a clinically valuable closet-set WRS test with a picture identification task for young Greek-speaking children. (2) Methods: The test material was meticulously designed based on specific criteria. To determine which parts of speech are used more frequently by preschool children, a spontaneous speech sample (250 words per child) was acquired from three hundred children aged 3 to 6 years (M = 4.56, SD = 0.90). The study involved the development and application of two phonemically balanced 50-word lists suitable for young children, as well as the creation of picture representations for each response set. All testing was accomplished in an audiometric booth that exceeded the audiometric rooms’ ambient noise level standards. The speech signal was routed from a laptop computer to a GSI 61 audiometer, and all test items were delivered from the audiometer to the subject. (3) Results: The results indicated that materials for a WRS test for young children are developed with high face validity and are applicable for children as young as three years old. The test satisfies the essential components needed for a WRS test. It consists of two phonemically balanced 50-word lists with low-redundancy bisyllabic words, with each list containing 227 phonemes. (5) Conclusions: This novel closed-set WRS test presents a valuable tool for assessing speech perception skills in young Greek-speaking children. The test results have various applications, including diagnosis, research, and (re)habilitation.
Year:
2023
(1) Background: This study aimed to validate the Greek version of the Autism Parenting Stress Index (APSI) among parents of children with ASD. (2) Methods: The translated version was administered to 113 parents (Male: 12, Female: 101, 39.24 years old, SD 6.70, age range, 25–58) of children diagnosed with ASD and 127 parents (Male: 24, Female: 103, 41.08 years old, SD 6.22, age range: 27–56) of typically developing children. (3) Results: Significant differences between the APSI total scores and three domains between groups were observed. Although the initial factor structure could not be replicated, the APSI’s internal consistency was excellent (a = 0.914), with a high positive item–total correlation (0.900–0.917). The APSI’s test–retest reliability was excellent, showing an ICC equal to 0.922 [95%, CI: 0.900–0.940]. The APSI’s total score cut-off point was equal to 12.00 (AUC 0.845, p < 0.001) with a sensitivity of 0.839 and 1-specificity of 0.220. A principal component analysis of the 13 items, using varimax rotations, identified three factors, which explained approximately 45.8% of the overall variance. (4) Conclusions: The Greek version of the APSI exhibited discriminant validity for measuring parents of children with ASD. Greek health professionals can use it to assess the stress experienced by parents of children with ASD.
Year:
2023
Year:
2023
Year:
2020
Collaborators (7)
Vassiliki Siafaka
University of Ioannina
Petros Skapinakis
Professor
University of Ioannina School of Medicine
Panagiotis Plotas
University of Patras
Dionysios Tafiadis
Assistant Professor
University of Ioannina
Voula Chris Georgopoulos
University of Patras
Nafsika Ziavra
Professor ENT Surgeon
University of Ioannina
Angelos Papadopoulos
Lecturer in contract
University of Patras
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