Which part of the measurement plan includes a narrative description of conditions that affects work performance?

The correct choice focuses on "Measurement instructions" as it encompasses a detailed narrative description of the conditions that impact work performance. This section elaborates on various factors that can influence how employees perform their tasks, including environmental, organizational, and contextual elements. Through this narrative, stakeholders gain insights into the conditions under which measurements are taken, which is essential for interpreting the data accurately and understanding its implications on work performance.

For example, if the measurement plan identifies potential interruptions in a workplace that could affect productivity, this information helps those analyzing the results comprehend variances in performance levels. A robust narrative in this section ensures clear communication about the operating environment and its effects on the outcomes of the assessment, thereby supporting effective decision-making and planning.

Other options like general study information, operational audit procedures, and measurement goals serve different purposes in a measurement plan. They may outline the framework, the process of assessing operations, or define outcomes to achieve, but they do not specifically focus on the narrative surrounding conditions affecting performance. Thus, the selection of "Measurement instructions" is vital for making the connections between the work environment and performance metrics clear and comprehensive.