Standard scores (3-digit). The mean 3-digit standard scores of all three written examinations are 500, regardless of when the examinations are given. The minimal passing 3-digit standard score for Level 1 and Level 2 (CE) is 400, for Level 3 is 350, regardless of when the examinations are taken.

Standard deviations of COMLEX written examination 3-digit scores are Level-specific and time-specific. **For Level 1** examinations given between 1998 and 2001, the standard deviation is 71; **from 2002 to October 2005, the standard deviation is 79.** **For Level 2** written examinations given between 1997 and 2000, the standard deviation is 85; from 2001 to June 2005, the standard deviation is 73; **from July 2005 to present, the standard deviation is 83.** For Level 3 examinations given between 1995 and 1999, the standard deviation is 111; from 2000 to June 2005, the standard deviation is 120.

**Standard scores (2-digit). The minimal passing 2-digit standard scores for all three written examinations are 75, regardless of when the examinations are taken.**

Standard deviations of COMLEX written examinations 2-digit scores are Level-specific and time-specific. **For Level 1** examinations given between 1998 and 2001, the standard deviation is 3.55; **from 2002 to June 2005, the standard deviation is 3.95.** **For Level 2** written examinations given between 1997 and 2000, the standard deviation is 4.25; from 2001 to June 2005, the standard deviation is 3.65; **from July 2005 to present, the standard deviation is 5.82.** For Level 3 examinations given between 1995 and 1999, the standard deviation is 3.70; from 2000 to June 2005, the standard deviation is 4.00.