Research Methods
This type of research measures the relationship between two variables without proving cause.
What is correlation?
The minimum stimulation needed to detect a stimulus 50 percent of the time.
What is the absolute threshold?
This memory system holds information for about 20 to 30 seconds.
What is short term memory?
This psychologist created the hierarchy of needs.
Who is Abraham Maslow?
This theory says emotion happens first, then physical arousal follows.
What is the Cannon Bard theory?
In an experiment, this variable is changed by the researcher.
What is the independent variable?
This principle explains why you can notice a candle in a dark room but not in bright sunlight.
What is sensory adaptation?
This type of memory stores facts and general knowledge.
What is semantic memory?
This researcher studied classical conditioning with dogs.
Who is Ivan Pavlov?
The desire to perform a behavior because it is rewarding in itself.
What is intrinsic motivation?
This group does not receive the treatment and is used for comparison.
What is the control group?
The process by which sensory receptors convert stimuli into neural signals.
What is transduction?
This brain structure plays a key role in forming new memories.
What is the hippocampus?
This psychologist developed operant conditioning and the Skinner box.
Who is B. F. Skinner?
This hormone increases during stress and helps prepare the body for action.
What is cortisol?
This type of bias occurs when participants change behavior because they know they are being studied.
What is the Hawthorne effect?
This Gestalt principle explains why we group objects that are close together.
What is proximity?
This memory problem occurs when new information blocks recall of old information.
What is retroactive interference?
This psychologist proposed stages of cognitive development in children.
Who is Jean Piaget?
This theory says physical arousal comes first and emotion is the interpretation of that arousal.
What is the Schachter Singer two factor theory?
This statistical measure shows how closely two variables move together and ranges from -1 to +1.
What is the correlation coefficient?
The theory that color vision works through opposing pairs like red and green.
What is the opponent process theory?
This theory says memory improves when the context during recall matches the context during learning.
What is encoding specificity?
This psychologist created the psychoanalytic theory and studied the unconscious mind.
Who is Sigmund Freud?
This theory says physiological arousal and emotion happen at the same time.
What is the Cannon Bard theory?