Developmental and Behavioral Concepts

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Typical development

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Behaviours, skills, or abilities that fall within the expected range of development or progress at a similar pace compared to peers of the same age.

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Typical behaviours

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Patterns of behaviour that are expected of an individual or that conform to standards of what is acceptable for a given situation.

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Atypical behaviours

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Patterns of behaviour that are not expected for an individual or that deviate from the norm and can be harmful or distressing for the individual and those around them.

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Atypical development

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Behaviours, skills, or abilities that fall outside the expected range of development or progress at a different pace compared to similar-aged peers.

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Cultural perspectives

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A criterion for determining whether a behaviour is typical or atypical, by accounting for cultural norms or societal standards.

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Social norms

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Shared standards or social beliefs about what is normal, acceptable, or typical behaviour.

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Statistical rarity

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A criterion that views abnormal or atypical behaviours as deviating significantly from the statistical average or mean.

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Personal distress

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A state in which a person experiences unpleasant or upsetting emotions, such as sadness, anxiety, or feeling overwhelmed.

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Maladaptive behaviours

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Behaviour that is unhelpful, dysfunctional, and nonproductive, and that interferes with a person's ability to adjust to their environment appropriately and effectively.

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Normality

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Patterns of behaviour that are typical and expected, or that conform to standards of what is acceptable.