A comparative study of telephone and face-to-face use of phone screening interview for autistic spectrum disorder symptoms (PSI-ASD)

ABSTRACT Objective: Describe reliabilities evidence of the Phone Screening Interview (PSI), a telephone screening interview for autism spectrum disorder (ASD) symptoms, capable of investigating mild to moderate ASD symptoms. Moreover, the PSI also works for verbal and non-verbal children and is consistent with the DSM-5 diagnostic criteria. Methods: An interview was performed with sixty-eight parents of children between 2 and 15 years old attended by the Psychiatry Ambulatory of Santa Casa de Misericórdia do Rio de Janeiro through the PSI in person and by telephone. Results: No significant differences in comparison between averages of the total score of the face-to-face and telephone applications were observed. The agreement analysis between the items indicated three items with lower values, leading to the modification of some questions, culminating in a new interview version for further studies. Given the disagreement in the values found, the order of application of the interviews seems to not impact the results, demonstrating strong correlations between both interviews, even with a different order of application. Aiming to facilitate the use of the scale by different examiners, the interobserver reliability was investigated, which did not show significant differences in the means. Conclusion: The study suggests that the telephone interview can be used similarly to the face-to-face interview, by different evaluators, with no impact on its efficiency in detecting ASD symptoms.