Description of EDI domains¹

Physical Health & Well-Being

above the 90th percentile, child is physically ready to tackle a new day at school, is generally independent, and has excellent motor skills.
below the 10th percentile, a child with average or poor fine and gross motor skills, sometimes tired or hungry, usually clumsy, with flagging energy levels, and average overall physical development

above the 90th percentile, child never has a problem getting along, working, or playing with other children; is respectful to adults, self-confident, has no difficulty following class routines, and is capable of pro-social behavior.
below the 10th percentile, a child with poor overall social skills, with regular serious problems in more than one area of getting along with other children, accepting responsibility for own actions, following rules and class routines, respect for adults, children, and others property, with self-confidence, self-control, adjustment to change, usually unable to work independently.

above the 90th percentile, a child who has almost never shown aggressive, anxious or impulsive behavior; has good ability to concentrate, and is often helping other children.
below the 10th percentile, a child with regular problems managing aggressive behavior, prone to disobedience, and/or easily distractible, inattentive, impulsive, usually unable to show helping behavior towards other children, and who is sometimes upset when left by the caregiver.

above the 90th percentile, a child who is interested in books, reading and writing, and rudimentary math, capable of reading and writing simple sentences and complex words, able to count and recognize numbers and geometric shapes
below the 10th percentile, a child with problems in both reading/writing and numeracy, unable to read and write simple words; uninterested in trying, and often unable to attach sounds to letters, has difficulty with remembering things, counting to 20, recognizing and comparing numbers, and is usually not interested in numbers.

above the 90th percentile, a child who has excellent communication skills, can tell a story and communicate with both children and adults, has no problems with articulation; and English is this child's first language.
below the 10th percentile, a child with poor communication skills and articulation, limited command of English, who has difficulties in talking to others, understanding and being understood, and has poor general knowledge.

Hertzman et al., Early Development in Vancouver: Report of the Community Asset Mapping Project (Camp)