True values for some behaviors (for example, compliance) are difficult to assess, because the process for determining true value must be different from the measurement procedures used to obtain the data one wishes to compare to the true value.
True
Step-by-step explanation:
True values for some behaviours are difficult as the process of determining and analysing the true value is much different than measurement procedures that are used to obtain the required data.
With some essential indicators, it could be possible by judging overall behaviour and at last, knowing what are the true values and what they indicate. This is a process which is complex as it includes practicality.
One requires proper study for knowledge and determine the actual values. So by stating the following reasons the given statement a true as it totally relates to it.