n. the systematic effort to discover or confirm facts, to investigate a new problem or topic, or to describe events and understand relationships among variables, most often by scientific methods of observation and experimentation. Research is essential to science in contributing to the accumulation of generalizable knowledge.
Sorry, "unconditioned-stimulus-preexposure-effect-us-preexposure-effect" is not in the Dictionary of Psychology. Please report to APA if you believe this is an error.