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Developmental Tests

Developmental Tests. Bayley Scales of Infant and Toddler Development, third edition (Bayley-III). Bayley Scales. Nancy Bayley – Institute of Child Welfare – Berkeley CA Original test 1969 Revised 2005. Characteristics of test. 1- 42 months Flexible administration format

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Developmental Tests

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  1. Developmental Tests Bayley Scales of Infant and Toddler Development, third edition (Bayley-III)

  2. Bayley Scales • Nancy Bayley – Institute of Child Welfare – Berkeley CA • Original test 1969 • Revised 2005

  3. Characteristics of test • 1- 42 months • Flexible administration format • 50 to 90 minutes • Theoretically eclectic • English only

  4. Uses of Bayley-III • Identify developmentally delayed children • Chart progress on intervention program • Teach parents about development • Research tool

  5. Major goals of revision • Meet IDEA 2004 cirteria • Update normative data • Extend age range • Improve content coverage • Update stimulus materials • Improve psychometric quality • Improve clinical utility of scales • Preserve basic qualities of scale

  6. Scales • Cognitive • Language • Motor • Social-Emotional* • Adaptive Behavior*

  7. Cognitive scale (Cog) • Infant: interest, attention/habituation, play • Toddler: exploration (toys, situations), problem solving, puzzle completion • Preschool: pretend play, building blocks, color matching, counting, more complex puzzles

  8. Language scale (Lang) Receptive Communication (RC): • Infant: recognize sounds, objects, people • Toddler: identify pictures and objects, follow directions, play peek-a-boo, wave bye-bye • Preschool: follow more complex directions, identify action pictures, understand basic grammar

  9. Language scale (Lang) Expressive Communication (EC) • Infant: non-verbal expressions • Toddler: use words to identify pictures, answer questions • Preschool: more complex stimuli than toddler

  10. Motor Scale (Mot) Fine Motor (FM) • Infant: following with eyes, hand to mouth, reaching or grasping • Toddler: stacking blocks, drawing simple shapes, place coins in slots • Preschool: draw more complex shapes, build simple structures, use scissors

  11. Motor Scale Gross Motor (GM) • Infant: head control, rolling, sitting, crawling • Toddler: crawling, stepping, support own weight, stand without assistance • Preschool: climb stairs, run, maintain balance, kick a ball

  12. Social-Emotional (SE) Caregivers give feedback • Infant: interest, getting attention, calming, responsiveness • Toddler: means/ends behavior, imitation play, imagination, word use • Preschool: interactions with peers/adults, describe feelings, use emotions

  13. Adaptive Behavior • Communication • Functional Pre-Academics • Self-Direction • Leisure • Social • Community use • Home living • Health and Safety • Self-Care • motor

  14. Video of Bayley assessment • video link

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