The development and psychometric properties of the selective mutism questionnaire.

TitleThe development and psychometric properties of the selective mutism questionnaire.
Publication TypeJournal Article
Year of Publication2008
AuthorsBergman, LR, Keller ML, Piacentini J, Bergman AJ
JournalJournal of clinical child and adolescent psychology : the official journal for the Society of Clinical Child and Adolescent Psychology, American Psychological Association, Division 53
Date Published2008 Apr
KeywordsAge Factors, Child, Child, Preschool, Female, Humans, Male, Mutism, Personality Assessment, Psychometrics, Reproducibility of Results, Sex Factors, Social Environment

Research on selective mutism (SM) has been limited by the absence of standardized, psychometrically sound assessment measures. The purpose of our investigation was to present two studies that examined the factor structure and initial reliability and validity of the Selective Mutism Questionnaire (SMQ), a 17-item parent report measure of failure to speak related to SM. Study 1 (N = 589) utilized an Internet sample of parents of children ages 3 to 11 to demonstrate that the SMQ has a theoretically and clinically meaningful factor structure accounting for a significant portion of variance in responses with good internal consistency. Study 2 (N = 66) supported the validity of the SMQ in that scores discriminated clinic-referred children with SM from children with other anxiety disorders. Scores on the SMQ were correlated with measures of several theoretically and clinically important dimensions.

Alternate JournalJ Clin Child Adolesc Psychol