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.
Definition of domain for English Language Learners. : 1  the land that a ruler or a government controls. : 2  an area of knowledge or activity. 3  computers : a section of the Internet that is made up of computers or sites that are related in some way (such as by use or source)