P is the principal; that's the amount you start with. The r is the interest rate. This is a decimal; in other words, if the interest rate is 9%, we use .09 in the equation. The n is the number of times the interest compounds each year. Finally, t is the time in years of the deposit or borrowed money.
Juan needs to create a questionnaire that adequately measures secondary traumatic stress so that his research study is valid. Secondary traumatic stress is the content domain in Juan's study. Content domain is the body of knowledge, skills or abilities being measured or examined by a test, experiment or research study.
from wikipedia the free encyclopedia a problem domain is the area of expertise or application that needs to be examined to solve a problem a problem domain is simply looking at only the topics of an individual s interest and excluding everything else for example when developing a system to measure good practice in medicine carpet drawings at hospitals would not be included in the problem domain in this example the domain refers to relevant topics solely within the delimited area of interest medicine