By using __________ assignment of participants to treatment conditions, investigators increase the chances that participants' characteristics will be equally distributed across treatment groups

Dimensional classification is an alternative to categorical systems such as the DSM. one advantage of a dimensional system is

a. better description of patients whose problems do not fit into a single category b. better use of a "common language" to classify patients c. simpler, clearer diagnostic labels for all conditions d. exclusion of all patients' comorbidity issues

Prescribing narcotic drugs to aid sleep in the elderly is particularly beneficial

Indicate whether this statement is true or false.