The _____ is the lowest level of stimulation that a person can consciously detect 50 percent of the time that the stimulation is present.

• A. absolute threshold
• B. difference threshold
• C. just noticeable difference
• D. minimal sensory threshold

Answer: (A)

Verified step by step guidance

1. Understand the concept of 'absolute threshold' in psychology, which refers to the minimum level of stimulus intensity needed for a stimulus to be detected 50% of the time.
2. Recognize that the 'difference threshold' or 'just noticeable difference' is related but distinct, as it refers to the smallest change in stimulus intensity that can be detected.
3. Consider the context of the question, which asks for the lowest level of stimulation detectable 50% of the time, aligning with the definition of 'absolute threshold'.
4. Eliminate options that do not fit the definition of detecting the lowest level of stimulation, such as 'difference threshold' and 'just noticeable difference'.
5. Conclude that the term 'absolute threshold' is the correct answer, as it matches the definition provided in the question.