For her research methods class, Serena plans to interview several teachers about their attitude toward teaching children who have attention-deficit/hyperactivity disorder (ADHD). This is an example of what type of measurement?

Self-report measurement

Explanation:

Self-report measurement are measures in which participants of a study are required to provide answers to questions regarding their own beliefs, behaviors, intentions, and/or attitudes. Serena plans to collect self-information from the participants, in this case, how teachers feel about their attitude towards teaching children with ADHD.

answer///cannot be totally predicted;

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.