Note: Preliminary analysis suggests that
about 60% of people
who try Scientology do only a single course or service, that 80% of new members
become inactive within 2 years, and that 65% of those who
reach the level of Clear become inactive within a year after doing
so. The older a list, the more likely that a person listed on it is
no longer involved in Scientology.
Please read About These Lists for more
information.
Jo Sierro in Scientology's Published Service Completion Lists
The following 25 individual completions for Jo Sierro appear in official Scientology publications:
| Jo Sierro | SCIENTOLOGY DRUG RUNDOWN | Source 55 | 1987-01-01 |
| Jo Sierro | STATE OF CLEAR | Source 55 | 1987-01-01 |
| Jo Sierro | SOLO AUDITOR COURSE. PART I | Source 55 | 1987-01-01 |
| Jo Sierro | L 11 | Source 55 | 1987-01-01 |
| Jo Sierro | SOLO AUDITOR COURSE PART II | Source 56 | 1987-03-01 |
| Jo Sierro | L 10 | Source 56 | 1987-03-01 |
| Jo Sierro | L 12 | Source 56 | 1987-03-01 |
| Jo Sierro | STAFF STATUS I | Source 56 | 1987-03-01 |
| Jo Sierro | DIANETIC CASE COMPLETION | Source 57 | 1987-05-01 |
| Jo Sierro | RECENT CLEARS INCLUDE: | Auditor 211 | 1987-05-01 |
| Jo Sierro | ELIGIBILITY FOR ISSUE OF OT LEVELS CHECK | Source 72 | 1990-09-01 |
| Jo Sierro | NEW OT I | Source 72 | 1990-09-01 |
| Jo Sierro | OT II | Source 73 | 1990-11-01 |
| Jo Sierro | OT III | Source 73 | 1990-11-01 |
| Jo Sierro | NEW OT IV OT DRUG RUNDOWN | Source 73 | 1990-11-01 |
| Jo Sierro | NEW OT V AUDITED NOTS | Source 77 | 1991-11-01 |
| Joe Sierro | DYNAMIC SORT-OUT ASSESSMENT | Source 206 | 2009-11-01 |
| Joe Sierro | PROFESSION INTENSIVE | Source 206 | 2009-11-01 |
| Joe Sierro | OT DEBUG SERVICE | Freewinds 86 | 2011-09-01 |
| Joe Sierro | PURIFICATION RUNDOWN | Source 231 | 2014-04-01 |
| Joe Sierro | NEW OT VI SOLO NOTS AUDITING COURSE | Source 232 | 2014-06-01 |
| Joe Sierro | NEW OT VII | Source 244 | 2017-01-01 |
| Joe Sierro | SURVIVAL RUNDOWN™ | Source 246 | 2017-05-01 |
| Joe Sierro | NEW OT VIII | Freewinds 121 | 2018-02-01 |
| Joe Sierro | SCIENTOLOGY: A HISTORY OF MAN BOOK COURSE | Freewinds 121 | 2018-02-01 |
Note: The dates listed above are the approximate publication dates of the magazines, which may be weeks or months later than the actual date the service was completed.
Jo Sierro in Scientology's Publications
The following 1 mentions of Jo Sierro appear in official Scientology publications:
| Jo Sierro | Honor Roll of the IAS | Impact 102 | 2002-12-01 |
Note: The dates listed above are the approximate publication dates of the magazines, which may be weeks or months later than the actual date the service was completed.
Jo Sierro and the Clear List
Entries for Jo Sierro in my Scientology Statistics Project Clear List database:
| Jo Sierro | Auditor 211 |
Jo Sierro and Scientologist Online Sites
My database does not list a Scientologist Online cookie-cutter web site for this person.
Jo Sierro and WISE Directories
WISE, the World Institute of Scientology Enterprises, publishes directories listing their members.
My database does not list this person in the WISE directories in my archives.
The information on this page comes from my Scientology Statistics database. While I attempt to be as accurate as possible, errors or inaccuracies may be introduced by the source material, the transcription process, or database bugs. If you discover an error or problem, please let me know by writing to kristi@truthaboutscientology.com.