1 There are three kinds of ADHD: predominately inattentive, predominately hyperactive/impulsive, and the combined (inattentive, hyperactive, and impulsive). 2  While medications are commonly used in the treatment of ADHD, behavioral therapy is important in improving the child's ability to function as well.
Actively participate in team building activities at the national and regional level.. National and regional are two different levels, so level ought to be pluralized, unless you're goint to stick the word both between at and the.. Also, team building should be hyphenated.
(2) Use hyphens in compound nouns to show they are single entities. In the examples below, the compound nouns are shaded. Often, the non-hyphenated version is acceptable too. However, using a hyphen will make your word easier to identify as a single entity, and it showcases your writing skills.