Abstract
The purpose of this follow-up study to Ludlow (2013) was to examine potential sources of variability within attributional ratings adults (age range: 21-73) assigned to child speakers affected by either Specific Language Impairment (SLI) or Attention-Deficit/Hyperactivity Disorder (ADHD). Factors considered were rater's gender [Rater Male (RM) or Rater Female (RF)], the reported gender of the speakers [Speaker Male (SM) or Speaker Female (SF)], and the type of neurodevelopmental disorder involved (SLI or ADHD). Eighty participants (40 male and 40 female) rated brief, transcribed, narratives previously produced in Ludlow (2013) by boys affected by either SLI, ADHD, or who had typical neurodevelopment (TN). Narratives were presented to raters as having been generated by either a boy or a girl. After reading each narrative, participants provided ratings in response to 15 questions about the narrative, the child speaker's attributes, and family background. Analyses revealed a significant main effect for speaker group, such that raters assigned more pejorative attributes to children with a disorder (ADHD = SLI < TN and ADHD < SLI < TN) across all dimensions. Significant speaker gender main effects (SM < SF) were limited to questions targeting the speaker's behavioral attributes. Results obtained in this study with transcription stimuli replicated previous reports that had used audio stimuli. These findings contribute to a growing body of research documenting the presence of robust, multidimensional, implicit, negative biases among most individuals towards children displaying language differences associated with common neurodevelopmental disorders.