What measure records the time from the onset of a stimulus to the onset of the response?

• A. Latency
• B. Duration
• C. Frequency
• D. Permanent product recording procedures

Answer: (A)

Latency is the time between when a stimulus is presented and when the individual begins the response. This measures how quickly a response is initiated after a cue, which is exactly what the question asks. It’s different from duration, which looks at how long the response lasts once it starts, and from frequency, which counts how often the behavior occurs. Permanent product recording procedures focus on the end product of a behavior rather than the speed of initiation. Measuring latency helps assess promptness and how effectively a cue or instruction leads to a rapid start of the behavior.