All psychological assessments are not the same explained Dr. Elizabeth Wassenaar, Director of Williams House, a part of Lindner Center of Hope In Ohio, in an interview with Lon on October 28, 2015. A short assessment done in a couple of hours in an office does not give nearly enough information to make a properly informed assessment. Lindner Center of Hope feels that it takes two weeks for an adolescent to get oriented, to take a wide battery of necessary tests and be observed for a few days in their normal daily routine. Listen to Dr. Wassenaar explain how to do a proper job of an assessment, it really must be residential and take a few days.