The evaluation process needs to incorporate multiple measures when evaluating teacher effectiveness and it must incorporate valid observations of professional practice. (mcede.org)
The company chose to use the «follow me home» approach because customers are less likely to provide valid observations when they are working in a lab. (businessinsider.com)
This is a pity because the piece covers a lot of ground and makes quite a number of valid observations otherwise, but the record must be set straight. (motivelegal.com)