A Concurrent Validity Study of the Mullen Scales of Early Learning (MSEL) and the MacArthur-Bates Communicative Developmental Inventory (CDI) in Infants with an Elevated Likelihood or Diagnosis of Autism.

Infants at elevated likelihood for or later diagnosed with autism typically have smaller vocabularies than their peers, as shown by the Mullen Scales of Early Learning (MSEL) and the MacArthur-Bates Communicative Developmental Inventory (CDI). However, the extent to which MSEL and CDI scores align remains unclear, especially across clinical and non-clinical populations. This study examined whether the concurrent validity of the MSEL and CDI differs based on autism likelihood and diagnosis.

Improving access to assessments of early motor development in local languages: polish adaptation of the Early Motor Questionnaire.

Unlabelled: A child's motor development progresses very dynamically. It is crucial to develop freely available parent-report measures of motor development that can be easily used globally to measure motor skills and identify children in need of interventions. This paper presents the adaptation and validation of the Early Motor Questionnaire, which consists of gross motor (GM), fine motor (FM), and perception-action integration (PA) subscales, to the Polish language (EMQ-PL).

Longitudinal changes in infants' rhythmic arm movements during rattle-shaking play with mothers.

From early on, infants produce a variety of rhythmic behaviors-an ability that likely supports later social communication. However, it is unclear, how this rhythmic motor production changes with age. Here, we investigated the coupling between infants' arm movements across the first year of life in a social context of a rattle-shaking play with their mothers.

Dyadic interactions during infant learning: Exploring infant-parent exchanges in experimental eye-tracking studies.

The role of parental behaviour in modulating infant learning during experimental studies has been rarely explored. Yet, multiple strands of research suggest that dyadic infant-parent interactions could be as important for infant learning and regulation during experimental studies with infants, as they are during their free, unconstrained play. Recently, we have developed a coding scheme for analysing the quantity and quality of various extraneous behaviours of both the parent and the infant during standard eye-tracking experiments.

Changes in selective attention to articulating mouth across infancy: Sex differences and associations with language outcomes.

Infants' attention to the mouth is thought to support language acquisition, yet this relation has been scantly tested longitudinally. This study assessed attention to the mouth and the eyes at 5.5 (n = 91; Polish, 49% females) and 11 months, between time-point changes and their associations with language development in infancy (11 months) and toddlerhood (24 months).