Heidi Baker / Iris Global: Healing Claims in Mozambique

The verdict. Measurable hearing and vision improvements were found in the 2010 STEPP study of 24 participants prayed for by her team, but individual testimonial claims lack independent medical documentation.

Baker's healing ministry is the subject of the STEPP academic study (Brown and colleagues, Southern Medical Journal, 2010), which provides the best available evidence. Beyond STEPP, her individual healing testimonies follow the standard pattern: compelling first-person accounts, no independent medical records, no physician confirmation. Baker has claimed restorations of sight to the blind and hearing to the deaf on numerous occasions. The STEPP study suggests something measurable may be occurring (see that entry), but the methodology was too flawed to confirm what. Individual testimony-based claims score lower. Baker's ministry is large, long-running, and her personal integrity is less disputed than Bentley's or Bonnke's, which is why the authentic assessment is slightly higher than those cases.

On the STEPP methodology. The STEPP study is the most rigorous investigation of these claims, but its methodological limitations — no control group, noisy field conditions known to produce practice-effect improvements, no baseline clinical selection — mean it suggests something measurable may be occurring without confirming what. The STEPP entry should be read alongside this one.

On the testimony pattern. The testimony model is universal in charismatic healing ministry. The absence of pre/post medical records does not establish that healings did not occur — it establishes that they cannot be independently evaluated. This is a strong point in the direction of natural explanation: it does not establish organic change.

On the logistical context. The remote-rural-Mozambique context is genuine and cuts both ways. The difficulty of documentation is real, but it also means the difficulty of distinguishing actual from claimed improvement is higher. Context limits both evidence gathering and verification equally.

On character. Baker's ministry is longstanding and her personal conduct has not been subject to the fraud/moral-failure pattern seen with Bentley. Character evidence is weak evidence for healing claims, but relevant for prior probability assessment.

Evidence summary. (1) STEPP found statistically significant measured improvements in hearing and vision among Baker's ministry participants — moderate support for authenticity. (2) Baker's individual testimony-based claims are not backed by pre/post medical records — strong point toward a natural or unverifiable explanation. (3) Ministry operates in rural Mozambique where baseline medical assessment and follow-up are logistically difficult — neutral, moderate weight. (4) Ministry is longstanding and conduct has not shown the fraud/moral-failure pattern seen with Bentley — weakly favorable for authenticity.