The Mullen Scales of Early Learning (MSEL), sometimes referred to simply as the Mullen, is a standardized assessment tool designed to measure development in infants and preschoolers, ages birth to 68 months (5 years, 8 months). The measure assesses gross motor skills, visual reception, fine motor skills, receptive language, and expressive language. The scales are combined to yield an early learning composite that is presented as an indicator of overall cognitive functioning. All scales comprise interactive tasks that are completed by the child and have 124 items. The scoring range for each test item varies from zero to five points; however, for most items, the child receives a score of zero (incorrect response) or one (correct response). The scale items are presented in hierarchical order ...