Teri 2005b.

Methods	Randomised controlled trial. Study duration: 2 months.
Participants	31 residents and 25 staff from four assisted living residences. Residents were predominantly female, had a mean age of 85.8 years and a MMSE mean score of 16.0. The mean age of staff was 37.4 years.
Interventions	Staff Training in Assisted Living Residences (STAR) based on a manual. Control ‐ usual onsite training Primary aim of intervention: Dementia specific training program to teach direct care staff to improve care and reduce problems in residents with dementia. (See Table 2)
Outcomes	Geriatric Depression Scale (GDP) Clinical Anxiety Scale (CAS) Revised Memory and Behaviour Problem Checklist (RMBPC) Agitated Behaviours in Dementia (ABID) Neuropsychiatric Inventory (NPI) Short Sence of Competence Questionnaire (SSCQ) (See Table 3)
Notes	Country of origin: Seattle, Washington, USA. STAR is conducted over 2 months, through 2 half day group workshops and four individualised sessions.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	'Four assisted living residences were randomly assigned to intervention or control'
Allocation concealment (selection bias)	Unclear risk	Randomisation procedure not reported.
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	A training manual and protocol were used. Opportunities to discuss site specific issues that might hinder implementation or sustainability were provided. Unclear as to the level of blinding of participants and staff other than outcome assessors.
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Interviewers blind to treatment condition conducted pre‐training and post‐training assessments
Incomplete outcome data (attrition bias) All outcomes	Low risk	No attrition to report.
Selective reporting (reporting bias)	Unclear risk	No RMBPC frequency data reported. Doesent state the number of participants in each group, this information had to be sought by authors.
Other bias	Low risk	Training by authors.