Survey researchers have to worry about response rate, the number of surveys that are returned compared to the number that are sent out. if only half of a sample completes a survey, that would be an insufficient response rate. true or false.

True

Explanation:

In order for surveyors to make a reliable conclusion they need complete responses without those complete responses they may have to discard some of the returned responses which makes their gathered results to be incomplete.

answer; i believe its jutland peninsula and scandinavian peninsula;

disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.