Fatigue, insomnia, sluggishness, feelings of extreme guilt, and recurrent death thoughts are all diagnostic criteria for major _____ disorder

__________ is a phenomenon in which researchers' hypotheses lead them to unintentionally bias the outcome of a study

a. Durability bias b. Expectancy bias c. Availability heuristic d. Confounding variable e. Confirmation bias

The difference threshold is:

a. the ability of different species to detect varying aspects of electromagnetic waves, from radio waves to cosmic waves. b. the smallest difference in stimulation that can be detected by an observer when two stimuli are compared. c. the difference in absolute thresholds between individuals with normal sensory abilities and those who have limitations in one or more senses. d. the difference between anatomical codes and functional codes when determining how individuals are able to experience so many different kinds of sensations.