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.
The definition of content is someone who is satisfied with what they have. An example of content is how a person feels after eating the perfect meal. Content is defined as what is inside or included in something. An example of content is beans inside of a jar. An example of content is the words inside a book.