The Canadian Little Developmental Coordination Disorder Questionnaire (Little DCDQ-CA) is a parent-report screening instrument that identifies 3- to 4-year-old children who may be at risk for Developmental Coordination Disorder (DCD). We tested the criterion validity of the Little DCDQ-CA in a sample of preschool-aged children in the United States (N = 233). Factor analysis resulted in a single dominant factor. Using established cut-off scores, 45% of the sample was identified as at-risk for DCD. Although a much larger percentage of children was identified as at-risk than would be expected based on the prevalence of formal DCD diagnoses in the population, the Little DCDQ-CA demonstrated good criterion validity. Children who exceeded the at-risk criterion exhibited impaired motor competence, EF, and early numeracy skills and were rated as having greater ADHD behaviors by their teachers, relative to their peers. This pattern of cognitive and behavioral deficits is consistent who those observed among children with a formal DCD diagnosis. [This paper will be published in "Assessment."]