The Expert Says:
Often times when data are entered, mistakes are made. Many times these mistakes are subtle (e.g. a score of 1 entered as a 2) and hard to catch. Other times incorrectly entered scores appear more obvious (i.e. a score of 10 receiving an extra zero and becoming 100). The best option is to check all data entry and make sure it is accurate.
Certain scores can "tip" us off as to the existence of a problem. Often times extreme outliers are inaccurately entered scores.
See the raw data