SOLVED

MULTIPLE-CHOICE QUESTIONS 4-1) Behaviors that are open and directly observable for the researcher are referred to as a. overt. b. covert. c. introspective. d. speculative. 4.2) Jason is participating in a psychology experiment where the researcher is timing how long it takes him to memorize a list of vocabulary words. This study appears to make use of the __________ technique. a. reaction time b. learning-time c. visual cliff d. one-trial 4-3) Claudia is participating in an experiment where she is being asked to look at a computer screen and, as quickly as possible, press a key on the computer’s keyboard as soon as she sees a blue square appear. The researcher is measuring, to the nearest millisecond, how quickly Claudia presses the key. What research technique is being used in this study? a. Learning time b. Visual cliff c. Reaction time d. Evoked potential 4-4) A developmental psychologist is measuring how infants’ eyes move as they are looking at various geometric shapes on a computer screen. This researcher is making use of the __________ technique. a. Electroencephalograph (EEG) b. Positron Emission Tomography (PET) c. visual scanning d. difference threshold 4-5) Madeline is conducting an experiment for her developmental psychology course. She has designed some colored geometric shapes on index cards and she wants to find out if 1-month-old infants can see these shapes. Madeline decides to hold these shapes up side-by-side to see which shape the infants look at the longest. As a shape becomes more familiar to an infant, the infant will tend to look at that shape less and less over time.  What technique is being used here? a. Habituation b. Reaction time c. Performance speed d. Evoked potential 4-6) What field of psychology looks at the connections between stimuli in the physical world and subjects’ perceptions of those stimuli? a. Humanistic b. Behaviorism c. Psychoanalysis d. Psychophysics 4-7) Carlos is participating in an experiment where the researcher is having him adjust the brightness of a light bulb until Carlos can just barely detect the presence of light. Based on this description, it appears as though the researcher is measuring Carlos’ a. electroencephalograph (EEG) pattern. b. absolute threshold. c. visual scanning. d. difference threshold. 4-8) Janet is participating in an experiment where she is being asked to compare different concentrations of lemon juice as two drops of juice are dropped on her tongue at a time. On each trial, she is told to indicate if the two drops of juice are the “same” or “different” in terms of their lemon concentration. What technique is being used with Janet? a. Absolute threshold b. Difference threshold c. Reaction time d. Learning-time 4-9) Manuel is participating in a sensory experiment where he is told to listen to pairs of tones of different frequencies and indicate if the tones are the “same” or “different” in terms of the perceived pitch. The researcher is interested in determining the minimum frequency change needed for Manuel to recognize the tones as being different on half of the trials. It appears as though the researcher is trying to measure Manuel’s a. absolute threshold. b. just noticeable difference. c. evoked potentials. d. performance speed. 4-10) The fact that the presence of a researcher might influence a participant’s behavior is referred to as a. debriefing. b. overt behavior. c. reactivity. d. just noticeable difference. 1