2 MAXE · 101 HCYSP
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Department
College of Arts & Sciences
UNIVERSITY
LUX ET VERITAS
psychology 101 exam 2
S E N S AT I O N , P E R C E PT I O N , C L A SS I C A L CO N D I T I O N I N G , M E M O RY & P R O B L E M
S O LV I N G
INSTITUTION [UNVERIFIED] University PROGRAM Undergraduate — Introduction to
Psychology Department Psychology
COURSE CODE PSYCH 101 COURSE TITLE Introduction to Psychology
ACADEMIC YEAR EXAM TITLE psychology 101 exam 2
TOTAL QUESTIONS 40 Questions FORMAT Multiple Choice — Select the
Single Best Answer
EXAMINATION INSTRUCTIONS
▸ Select the single best answer for each question unless otherwise instructed.
▸ Sensation, perception, classical conditioning, memory, and problem solving are all testable content.
▸ Correct answers and detailed rationales appear below each question for study purposes.
▸ All content is derived from Psychology 101 course materials.
, SECTION I — SENSATION, PERCEPTION, CONDITIONING,
Questions 1 – 40
MEMORY & COGNITION
1. The absolute threshold is the ______ amount of physical energy required for detection
_____ percent of the time.
A. Maximum; 50
B. Minimum; 50
C. Minimum; 100
D. Maximum; 100
CORRECT ANSWER B — Minimum; 50
RATIONALE The absolute threshold is defined as the minimum stimulus intensity that can be
detected 50% of the time. It is not the maximum (A, D) nor detected 100% of the
time (C). This statistical definition accounts for variability in sensory detection.
2. According to Weber's Law, for a standard stimulus of 50 decibels, a comparison stimulus of
______ decibels would be needed to detect a difference.
A. 51
B. 50.5
C. 47
D. 49
CORRECT ANSWER C — 47
RATIONALE Weber's Law states that the just noticeable difference (JND) is a constant
proportion of the standard stimulus. For sound intensity, the Weber fraction is
approximately 0.06 (6%). For a 50 dB standard, 50 × 0.06 = 3 dB change needed. 47
dB represents a 3 dB decrease, which is detectable.
, 3. Which statement about subliminal perception is FALSE?
A. Subliminal perception is the same as extrasensory perception
B. Subliminal tapes for weight loss or memory improvement don't work
C. Subliminal stimuli are detected less than 50% of the time
D. Subliminal stimuli do not have long-term effects on behavior
CORRECT ANSWER A — Subliminal perception is the same as extrasensory perception
RATIONALE This statement is false — subliminal perception (processing stimuli below
conscious awareness threshold) is fundamentally different from extrasensory
perception (ESP, which claims perception without sensory input). Subliminal
perception is a scientifically documented phenomenon; ESP is not.
4. ______ states that for each type of sensory judgment, the measured JND is a constant
proportion of the standard stimulus value.
A. The absolute threshold
B. Steven's power law
C. Fechner's law
D. Weber's law
CORRECT ANSWER D — Weber's law
RATIONALE Weber's Law states that the just noticeable difference (JND) between two stimuli
is proportional to the magnitude of the standard stimulus — ΔI/I = k (a constant).
Fechner's law (C) built on Weber's work. Steven's power law (B) is a different
scaling model.