Study IV
Sample n=20,057
Four-year randomised controlled trial
A large-scale RCT demonstrating that stage-matched interventions outperformed treatment-as-usual across demographic and jobseeker classifications — the evidentiary anchor for policy-relevant claims.
Key points
- 20,057 jobseekers over four years
- Stage-matched delivery beat business-as-usual on key outcomes
- OSF preprint (Coppin et al., 2020) reports ~41.9% average placement uplift under stage-matched delivery vs comparator across stages — cite PDF for exact definitions
- Supports external validity of the stage framework in live employment systems
Primary citation (Harvard)
Coppin, D 2018, 'A psychosocial stage of change approach to unemployment: A psychosocial, stage of change approach to improve employment outcomes for the unemployed', PhD thesis, Australian Catholic University, doi:10.26199/5ddf4b721bd86.
Cite the thesis for the overall programme; this study page is a plain-language summary unless you add publication-specific citations in the collection record.