TY - JOUR
TI - Translation and validation of the Greek version of an ageism scale for dental students (ASDS_Gr)
AU - Kossioni, A.E.
AU - Ioannidou, K.
AU - Kalyva, D.
AU - Marchini, L.
AU - Hartshorn, J.
AU - Kaufman, L.
AU - Smith, B.
AU - Barlow, P.B.
JO - Gerodontology
PY - 2019
VL - 36
TODO - 3
SP - 251-257
PB - Blackwell Munksgaard
SN - 0734-0664, 1741-2358
TODO - 10.1111/ger.12403
TODO - adult;  ageism;  aging;  article;  controlled study;  Cronbach alpha coefficient;  dental education;  dental procedure;  dental student;  discriminant validity;  ethics;  female;  gender;  human;  internal consistency;  item total correlation;  major clinical study;  male;  principal component analysis;  questionnaire;  validation process;  aged;  Greece;  psychometry;  publication;  reproducibility;  very elderly, Aged;  Aged, 80 and over;  Ageism;  Greece;  Humans;  Psychometrics;  Reproducibility of Results;  Students, Dental;  Surveys and Questionnaires;  Translations
TODO - Objectives: To describe the validation of a new 27-item ageism scale for dental students in Greece. Background: A new ageism scale for dental students has been developed by American and European Gerodontology educators and was preliminary validated in the United States. Methods: The scale was translated into Greek and administered to 8th- and 10th-semester dental students in Athens. Principal components analysis was used to explore the internal structure of the measure; internal consistency reliability was assessed using Cronbach's α coefficient; corrected item-total correlations were calculated to decide which low contributing items should be removed from the scale; and discriminant validity was tested investigating variation in relation to demographic and educational factors. Results: A total of 152 students responded to the questionnaire. The Principal component analysis offered a 15-item scale distributed into four factors that accounted for 56.4%, of the total variance, produced stronger factor loadings, a comparable amount of overall component variance and logical sets of components. The four factors produced were values/ethics about older people (four items, α = 0.71), patient compliance (four items, α = 0.72), barriers to dental care (four items, α = 0.57) and dentist-older patient interaction (three items, α = 0.64). Discriminant validity revealed statistically significant differences in factors and items related to semester of studies, gender and family's permanent residence. Conclusion: The preliminary validation of the Greek version of the ageing scale for dental students revealed a 15-item questionnaire that demonstrated acceptable validity and reliability and could be further tested in larger samples. © 2019 Gerodontology Association and John Wiley & Sons Ltd
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