Reliability and Validity Tests of the Harthill Leadership Development Profile in the Context of Developmental Action Inquiry Theory, Practice and Method *
developmental action inquiry (DAI)
Harthill leadership development profile (LDP)
Social sciences (General)
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AbstractIn this paper, we describe how the Harthill Leadership Development Profile(LDP), a language-based instrument has evolved from Jane Loevinger’s WashingtonUniversity Sentence Completion Test (WUSCT), and has been redesigned to assess andoffer feedback about adults’ action logics in work or educational settings, in the contextof Developmental Action Inquiry (DAI) theory, practice, and method (Torbert, 1972,1976, 1987, 1991; Torbert & Associates, 2004).Next, we challenge a recent critique of the LDP as a soft measure unsupported bypublished, quantitative psychometric reliability and validity studies (Stein & Heikkinen,2009) and present both previously unpublished and previously published-but-notaggregatedstudies illustrating Harthill LDP as a well-calibrated measure of adult egodevelopment.Because the DAI approach to social inquiry and social practice invites us all tointerweave first-, second-, and third-person inquiry and everyday action, the validitystudies reported tend to concern field-based experiments seeking to generatedevelopmentally transforming change in adults, including the researchers and/orinterventionists, as well as in the organizations in which they participate.In our conclusion, we briefly consider what a social science and a social practice basedon the developmentally late action-logics will look like, once social science is recognizedas embracing, not just 3rd-person empirical positivist research “on” subjects, but also 1st-,2nd-, and 3rd-person research and action with co-participants in live settings.