About the Measure

Domains Language
Subscales Gestures and words; words and sentences. Possible to create profile of specific language targets achieved
Target Construct Oral language: Vocabulary comprehension, production, gesture use, and early grammar.
Description Standardized parent-completed forms that help professionals screen young children’s emerging language and communication skills.
Test Authors Fenson, L., Marchman, V. A., Thal, D. J., Dale P. S., Reznick, J. S. & Bates, E.
Publisher Brookes Publishing Co (2007)

Implementation details

Respondent Child (Parents / caregivers complete )
Prior knowledge Required None
Scoring Measures of expressive language transparent, receptive language measures require additional training
Time 20–40 minutes for Parents or caregivers to complete and 10–15 minutes for professionals to score
Age 8 to 37 months

Psychometric details

UK norms YES
Norm / Criterion referenced Norm referenced
Standardisation sample 1800
Reliability .97, .99, and .99 for the infant form, toddler Form A, and toddler Form B, respectively.
Criterion validity Validated for infants, toddlers and children with developmental disabilities. Appropriate for assessing developing language and with precautions identifying risks for language impairment.
Construct validity Total score predicts language status, with classification accuracy of up to do 92%.
Concurrent validity Several studies have demonstrated that the scores are significantly correlated to established measures of language development across different ages and impairment levels.