Final answer:
The component that is not a part of reliability is validity. While reliability focuses on consistency of results, validity is about whether the measurement actually measures what it's supposed to measure.
Step-by-step explanation:
All of the following are components of reliability except: a. validity. Reliability refers to the ability to consistently produce a given result. This concept is key in areas such as psychological research and involves ensuring that instruments or tools used for data collection can deliver consistent and reproducible results. There are a number of different types of reliability, such as inter-rater reliability, internal consistency, and test-retest reliability. Validity, on the other hand, pertains to whether the instrument measures what it is intended to measure and is hence not a component of reliability but rather a different attribute of measurement quality. The other options, accuracy, verifiability, and feedback value are associated with producing reliable results.