<unk>  can occur for several reasons.<unk>  shadowing most often occurs when a new behavior develops or previous abnormal behaviors increase. Staff inexperienced with working with people with intellectual disability are also more likely to mistakenly attribute symptoms of a physical illness to a person's intellectual disability. Time pressures of healthcare providers and stigma have been found to be additional causes of<unk> .
Diagnostic overshadowing
Blissful ignorance effect
Unwarranted variation
Construct validity
Inequality in disease
Aseptic sampling
False positives and false negatives
Misuse of p-values