Lab: Theory of Signal Detection Flashcards
what is signal detection theory
Detection theory or signal detection theory is a means to measure the ability to differentiate between information-bearing patterns and random patterns that distract from the information. In the field of electronics, signal recovery is the separation of such patterns from a disguising background
response bias in signal detection theory
Response bias is an index of the human’s decision-making criterion; that is, the human’s tendency to respond “yes” or to respond “no.” Response bias will be a function of the value of each of the four alternative outcomes and the expectancy or likelihood of a signal being present.
sensitivity in signal detection theory
The most commonly used SDT measure of sensitivity is d’ (d prime), which is the standardized difference between the means of the Signal Present and Signal Absent distributions. To calculate d’, we need to know only a person’s hit rate and false alarm rate.
sensitivity in signal detection theory
The most commonly used SDT measure of sensitivity is d’ (d prime), which is the standardized difference between the means of the Signal Present and Signal Absent distributions. To calculate d’, we need to know only a person’s hit rate and false alarm rate.
