Aschool psychologist was concerned with the number of children being diagnosed with attention-deficit hyperactivity disorder (adhd). if she were interested in learning how many new cases of adhd had been diagnosed within the last two years, she will look at

The Diagnostic and Statistical Manual of Mental Disorders, in its fifth edition (or DSM 5).

Explanation:

This a manual created and published by the American Psychiatry Association, which is used by most of today's psychologists for diagnostic related inquiries on mental health disorders.

Last updated, DSM 5, was published in 2013, and it is still consider as useful when seeking for statistic information.

experiments.

surveys.

questionnaires.

interviews.

case studies.

participant and non-participant observation.

observational trials.

studies using the delphi method.

answer; first blank(1); 30% two(2); salmonella; i believe this is correct; //good luck;