GAIN By The Numbers
As of January 6, 2025
Current GAIN Users
- States/Provinces/Territories using the GAIN: 65 (updated June 17, 2024)
- Countries where the GAIN is used: 17 (Australia, Belgium, Brazil, Canada, China, Great Britain, India, Iran, Japan, Malaysia, Mexico, Pakistan, South Africa, South Korea, Spain, Portugal, US) (updated June 17, 2024)
- Licensed GAIN administrative units: 5,676 (updated June 17, 2024)
- Certified GAIN Local Trainers (individuals that completed our train the trainer model and can now train and recommend their staff to Chestnut for certification): 1,792 (updated June 17, 2024)
- Certified GAIN Administrators (individuals from all 50 states and four countries outside the united states have completed certification to administer the GAIN at their agencies; these individuals recorded their GAIN administrations with clients and received feedback and coaching from Chestnut to demonstrate mastery of administration): 3,277 (updated June 17, 2024)
- Certified GAIN Site Interviewers (individuals who were trained by a local trainer at their own agency): 6,379 (updated June 17, 2024)
GAIN Publications and National Dataset
- GAIN-related publications: 949 (updated July 30, 2025)
- GAIN-I related publications: 403 (updated July 30, 2025)
- GAIN Quick related publications: 64 (updated July 30, 2025)
- GAIN Short Screener related publications: 324 (updated July 30, 2025)
- Sample size in GAIN 2023 data set: 754,464 (data through December 31, 2023)
- Sample size in 2018 GAIN Norms: 306,608 (data through August 31, 2018)
GAIN ABS users
- Total GAIN ABS agency accounts: 1,713
- Total GAIN ABS users: 22,685
- Total records in GAIN ABS: 1,305,117
- GAIN-I 5.7: 196,685
- GAIN-M90 5.7: 11,469
- GAIN-I 5.6: 260,6089
- GAIN-M90 5.6: 56,506
- GAIN-Q4: 1,971
- GAIN-Q3: 99,098
- GAIN-Q2: 193,710
- GAIN-Q2 FU: 5,437
- GAIN-SS2: 38,363
- GAIN-SS3: 316,001
- GAIN-SS4: 56,337
- TxSI: 18,703
- Research Specific: 31,401
