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Abandonment n. desertion or substantial leave-taking by a parent or primary caregiver of his or her custodial and other responsibilities to a dependent.…

A-B-A-C-A design a type of single-case design having five consecutive phases: a baseline condition in which no treatment is present (Phase A), a treatment…

A-B design the simplest single-case design, comprising a pretreatment or baseline phase (Phase A) followed by a treatment phase (Phase B). Although…

A-B-A design a type of single-case design having three phases: a baseline condition in which no treatment is present (Phase A), a…

a priori comparison any examination in which two or more quantities are compared in accordance with plans established prior to conducting a…

A prime (symbol: A′) a measure of the sensitivity for correctly detecting or remembering a stimulus in a task or test. This measure is…

A Posteriori denoting conclusions derived from observations or other manifest occurrences: reasoning from facts. Compare a priori. [Latin, “from the latter”]

A Fiber A myelinated nerve fiber (axon) of the somatosensory system. A fibers are subdivided by diameter, ranging from largest to smallest:…

Abnormal Psychology Abnormal Psychology is the branch of psychology devoted to the study, assessment, treatment, and prevention of maladaptive behavior. Abnormal Psychology…

Dyslexia is a relatively common condition epitomised by chronic difficulties with reading, writing, and spelling. It can be inherited (Developmental Dyslexia) or…