The Suicidal Ideation Attributes Scale-Modified (SIDAS-M): Development and preliminary validation of a new scale for the measurement of suicidal ideation in autistic adults

Darren Hedley, Philip J Batterham, Simon M Bury, Angela Clapperton, Kathleen Denney, Cheryl Dissanayake, Phoenix Fox, Thomas W Frazier, Emma Gallagher, Susan M Hayward, Jo Robinson, Ensu Sahin, Julian Trollor, Mirko Uljarević & Mark A Stokes
The study describes the development and preliminary psychometric validation of the Suicidal Ideation Attributes Scale-Modified (SIDAS-M), a five-item assessment of suicidal ideation for use with autistic adults. Participants (n = 102 autistic adults; 58% women, 34% men, 8% nonbinary; Mage = 41.75, SD = 12.89) completed an online survey including the SIDAS-M at Time 1 and participated in follow-up interviews at Time 2 (~111 days later). A single factor solution provided good to excellent fit...
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