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Types of Feedback

Negative Feedback
Negative Feedback

Negative feedback is a regulatory mechanism in which a 'stimulus' causes an opposite 'output' in order to maintain an ideal level of whatever is being regulated. Steps of Negative Feedback Loops All negative feedback loops occur in a series of steps. Let's continue to use a thermostat as an example.

source: study.com
Positive Feedback
Positive Feedback

Positive feedback is a particularly effective practice for shaping students' academic and behavioral performance, and researchers have identified it as an evidence-based practice for a wide variety of students (e.

Positive Feedforward
Positive Feedforward

In feedforward control the systems output can change without any reaction from the controller while in feedback control any change in the system output will provoke a reaction of the controller. Since the important aspect is the systems output and the feedforward controller does not react to changes in the output it can be considered a non-reactive control method.

Positive Feedforward Affirming Comments About Future Behavior
Positive Feedforward Affirming Comments About Future Behavior

Positive feedback, or affirming comments about past behavior. These are things that went well and need to be repeated. Negative feedforward, or corrective comments about future behavior. These are things that don’t need to be repeated next time.