Thresholds
Psychology ⇒ Sensation and Perception
Thresholds starts at 10 and continues till grade 12.
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See sample questions for grade 11
A person is exposed to two tones: one at 1000 Hz and another at 1005 Hz. If they can just notice the difference, what is the difference threshold for this person?
A researcher finds that a participant can detect a light at 10 units of intensity but not at 9 units. What is the participant's absolute threshold for this light?
According to Weber's Law, if the JND for a 50g weight is 2g, what would be the JND for a 100g weight?
Describe how adaptation can affect sensory thresholds.
Describe how individual differences can affect sensory thresholds.
Describe how signal detection theory differs from the concept of absolute threshold.
Describe how the concept of threshold applies to hearing a faint sound in a quiet room.
Explain the difference between absolute threshold and difference threshold.
Explain the term 'subliminal stimulus' in relation to thresholds.
Explain Weber's Law in the context of difference thresholds.
Explain why the absolute threshold is measured at the point where a stimulus is detected 50% of the time.
If a person can detect a difference between 10g and 11g, but not between 10g and 10.5g, what is their JND for weight at this level?
If a person can detect a sound at 20 decibels 50% of the time, what is their absolute threshold for that sound?
If a person can just notice the difference between a 100g and a 105g weight, according to Weber's Law, what is the just noticeable difference for a 200g weight?
If the Weber fraction for weight is 0.02, what is the JND for a 500g weight?
What is the absolute threshold in sensation and perception?
