Title

Development and evaluation of the Transpersonal Depth-Guided Imagery and Music (TD-GIM) inventory

Document Type

Article

Publication Date

2-23-2015

Journal / Book Title

Nordic Journal of Music Therapy

Abstract

The purpose of the present study was to evaluate the criterion validity of a 33-item, binary-response inventory, the Transpersonal Depth-Guided Imagery and Music (TD-GIM), for assessing the degree to which experiences of the Bonny Method are transpersonal. Participants (N = 60) were experienced Bonny Method practitioners, each of whom completed the TD-GIM online, for 1–2 exemplars of Bonny Method experiences they themselves encountered, as clients. As a criterion measure, participants also rated the transpersonal depth of their experiences on a five-point Likert scale. The combined pool of exemplars from all participants was randomly distributed between two data sets (n = 57 and n = 58). TD-GIM scores and five-point ratings correlated at r = .72 (p < .0001) for data set one, and r = .76 (p < .0001) for data set two. An item analysis yielded a modified, brief version of the TD-GIM consisting of the nine items most strongly correlated with the five-point criterion measure. The brief version produced correlations of r = .77 (p < .0001) for data set one, and r = .78 (p < .0001) for data set two. Methodological considerations include inventory design, wording, rating distributions, and internal homogeneity, as well as the approach to creating the brief version. Potential clinical applications include use as a guiding framework for identifying transpersonal experiences in Bonny Method work that complement the Bonny Method Guide’s expert sensibilities. Future research implications include the value of addressing the unanswered questions following the present inquiry.

DOI

10.1080/08098131.2015.1008557

Journal ISSN / Book ISBN

1944-8260

Published Citation

Abrams, B. Development and evaluation of the Transpersonal Depth-Guided Imagery and Music (TD-GIM) inventory. Nordic Journal of Music Therapy, 25 (1), 32-56.

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