Introduction The importance of values in occupational therapy is generally agreed; however, there is no consensus about their nature or their influence on practice. It is widely assumed that occupational therapists hold and act on a body of shared values, yet there is a lack of evidence to support this. Method The research tested the hypothesis that occupational therapists’ responses to ethically challenging situations would reveal common values specific to the occupational therapy profession. A total of 156 occupational therapists were asked to decide what should be done in five common-place yet ethically complex situations, presented as scenarios for debate. Results The results show that while most occupational therapists share very general values, they frequently disagree about what to do in practice situations, often justifying their choices with different and sometimes conflicting specific values. In some cases, the same respondents espouse contradictory values in similar situations. Conclusion The extensive literature about decision-making – together with the study’s results – confirm that when occupational therapists make decisions, they draw on multiple factors, consciously and unconsciously. These factors vary between individuals. Value judgements are one part only of a complex process which includes personal experience, intuition, social influences, culture, psychological influences and relationships with both colleagues and clients.