Expressive language sampling and outcome measures for treatment trials in fragile X and down syndromes: composite scores and psychometric properties. - Abbeduto, Leonard; del Hoyo Soriano, Laura; Berry-Kravis, Elizabeth; Sterling, Audra; Edgin, Jamie O.; Abdelnur, Nadia; Drayton, Andrea; Hoffmann, Anne; Hamilton, Debra; Harvey, Danielle J.; Thurman, Angela John (Scientific Reports, 2023)