All Free Psychology MCQs with Answers

• A. the Young-Helmholtz theory
• B. the opponent-process theory
• C. feature detection
• D. color constancy

Explanation: Color constancy keeps an object’s perceived color relatively stable despite changes in illumination, so the rose still appears red in…

• A. the bones of the middle ear
• B. membranes within cochlea
• C. information from the muscles, tendons and joints
• D. the body's sense of balance

Explanation: Kinesthesis, or the kinesthetic sense, detects the position and movement of body parts through receptors in muscles, tendons, and joints.

• A. dark adaptation
• B. light adaptation
• C. coding of contrast
• D. coding of light intensity patterns

Explanation: Light adaptation is the adjustment of the visual system when moving from darkness into bright light.

• A. iris
• B. retina
• C. lens
• D. optic nerve

Explanation: The retina contains rods and cones, whose photoreceptors transduce light into neural signals.

• A. eyes
• B. ears
• C. tongue
• D. skin

Explanation: The skin is the body's largest sense organ because it contains receptors for touch, pressure, temperature, and pain across the body's…

• A. a cloudy cornea
• B. an elongated eyeball
• C. a malfunction of the lens of the eye
• D. an eyeball that has become shortened

Explanation: Myopia occurs when the eyeball is too long from front to back, causing light to focus in front of the retina rather than directly on it.

• A. optic chiasma
• B. optic nerve
• C. blind spot
• D. fovea

Explanation: The optic chiasma is the X-shaped junction where some optic-nerve fibers cross to the opposite hemisphere.

• A. size
• B. shape
• C. color
• D. dimension

Explanation: Perceptual constancies commonly include size, shape, and color constancy, which let objects appear stable despite changes in viewing…

• A. wholistic functions
• B. continuity
• C. proximity
• D. additive vision

Explanation: The principle of proximity groups elements that are close together, so equally spaced dots are perceived as rows or columns.

• A. telepathy and precognition
• B. psycho-kinesis and kinesthesis
• C. balance and kinesthesis
• D. psycho-kinesis and clairvoyance

Explanation: Balance, or equilibrium, and kinesthesis provide information about body position and movement, so they are often added to the five…

• A. similarity
• B. symmetry
• C. holistic perception
• D. continuity

Explanation: The Gestalt principle of continuity describes the tendency to perceive smooth, flowing paths rather than disconnected segments.

• A. stimulus energies are detected
• B. stimulus energies are transformed into neural activity
• C. sensory input is selected, organized and interpreted
• D. nerve cells respond to specific features of a stimulus

Explanation: Perception gives meaning to sensory information by selecting, organizing, and interpreting it.

• A. Cutaneous
• B. Auditory
• C. Visual
• D. Olfactory

Explanation: The visual system contains retinal ganglion cells, and accommodation is controlled by the ciliary muscles that adjust the lens for…

• A. audition
• B. taste
• C. vision
• D. touch

Explanation: Vision contributes more information to human experience than the other senses, allowing us to detect color, form, distance, and movement…

• A. prosopagnia
• B. achromatospia
• C. dyslexia
• D. glaucoma

Explanation: Glaucoma develops when increased fluid pressure inside the eye damages the optic nerve and may progressively impair vision.

• A. lens
• B. iris
• C. pupil
• D. cornea

Explanation: The iris is the pigmented, colored ring surrounding the pupil and controls how much light enters the eye.

• A. photons
• B. waves
• C. intensity
• D. photoreception

Explanation: Light can be described in terms of photons, waves, and intensity. Photoreception is the process of detecting light with receptor cells…

• A. stimulus thresholds
• B. sensory transduction
• C. the tricolor theory
• D. reinforcement rate matching

Explanation: Weber’s law states that the just-noticeable difference is a constant proportion of the original stimulus, making it a law about sensory…

• A. rods
• B. bipolar cells
• C. cones
• D. ganglion cells

Explanation: Cones are retinal receptor cells specialized for color vision and detailed vision in relatively bright light.

• A. shape constancy
• B. size constancy
• C. motion parallax
• D. interposition

Explanation: The Ames room creates a misleading perspective in which equal-sized people appear different in size, testing how visual context can…