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When σ is unknown, one should use an estimate that is considered to be at least as large as the true σ. This will provide a conservative sample size to be on the safe side.
Childhood Schizophrenia
A rare and severe mental disorder in children characterized by hallucinations, delusions, and disordered thinking and behavior.
Autism Spectrum Disorder
A range of neurodevelopmental conditions characterized by challenges with social skills, repetitive behaviors, and communication, both verbal and non-verbal.
Clinical Features
The observable and measurable symptoms and signs of a particular disease or condition, assisting in diagnosis and treatment.
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