Answer to Question #200313 in Psychology for Paballo

Question

• Tshepo and his wife, Gugu, have been going to the gym to do weightlifting for about five months now. Today, the gym instructor increased the weight that Tshepo must lift from 60 kg, with 1 kg, to 61 kg. Gugu usually worked with 25 kg weights, which was only increased with half a kilo to 25,5 kg. The fact that Tshepo does not sense an increase in his weight, but Gugu does, can be ascribed to: A. All of these.
•  B. The difference threshold
•  C. Weber’s law
•  D. The minimum amount a stimulus must be changed to detect a difference

Answer 1

B. The difference threshold

A difference threshold is the lowest needed difference between two stimuli for a person to perceive change 50% of the time (and you already know where that 50% comes from). The difference threshold is also known as the just observable difference, which more effectively reflects the notion.