Emily is a menace to all those around her. she has rapid mood swings which are punctuated by uncontrollable bouts of aggression. she has cuts on her arms and legs owing to self-inflicted injuries. this has forced her parents to limit her interaction with others. they find it hard to control her themselves. according to the "4 ds" of determining whether something is a mental disorder, what does this reveal about emily's behavior?

Janette goes into an electronics superstore to buy a new computer. the salesperson works with her to find the right model, and she agrees to buy a new computer for $500 and a floor-model 18-inch monitor for $100. just when she is ready to pay, the salesperson walks away for a minute and then comes back to inform her that the monitor she was ready to purchase can't be sold for < $125. she agrees to the extra $25 even though they had initially agreed on the $100 selling price. janette has fallen for the technique of gaining compliance.

Calculate the iq of a 20 year old who has the mental age of 25

Experiment to investigate effect of medication on levels of stress in males and females. dependant variable?