 Engagement with credibility issues (such as cross-validation, cooperative inquiry, independent audit, or triangulation) is also likely to increase the reader's confidence.Due to an increased interest in the constructed nature of certain aspects of illness (how we perceive bodily and mental symptoms), IPA has been particularly recommended for its uses in the field of health psychology.However, while this subject-centered approach to experiencing illness is congruent with an increase in patient-centered research, it has also been suggested that IPA may have been historically most employed in health psychology due to the fact that many of its initial supporters operated careers in this field.