Coming up with memory tricks such as roy g. biv for the visible spectrum of colors and homesfor michigan's great lakes are types of

a. mnemonics.
b. repeated testing.
c. spaced practice.
d. recency effects.

A. Mnemonics.

A mnemonic is a device used to memorize information by reducing the elements of a topic to it's key elements.

answer; delirium is a common adverse reaction seen when elderly patients take diphenhydramine;