title: Two short forms of the Agnew Relationship Measure: the ARM-5 and ARM-12.
abstract: This article reports the development and psychometric properties of two short forms of the 28-item Agnew Relationship Measure, the ARM-12 and ARM-5. For the ARM-12, results of previous research were used together with conceptual considerations to select three items to represent each of four ARM subscales: Bond, Partnership, Confidence, and Openness. For the ARM-5, item-analytic principles were used to select five items to represent overall alliance. In all three ARMs, client and therapist versions were constructed to contain parallel items. We drew data to assess reliability and validity from three UK trials of brief therapy for depression. Results indicated that the two short ARMs have acceptable psychometric properties and that they converged with each other and with the full ARM.
authors.affiliation: School of Healthcare, University of Leeds, Leeds, UK. j.l.cahill@leeds.ac.uk
authors.forename: Jane
authors.initials: J
authors.lastname: Cahill
authors.forename: William B
authors.initials: WB
authors.lastname: Stiles
authors.forename: Michael
authors.initials: M
authors.lastname: Barkham
authors.forename: Gillian E
authors.initials: GE
authors.lastname: Hardy
authors.forename: Gregory
authors.initials: G
authors.lastname: Stone
authors.forename: Roxane
authors.initials: R
authors.lastname: Agnew-Davies
authors.forename: Gisela
authors.initials: G
authors.lastname: Unsworth
mesh_terms: D000328:Adult; D003863:Depression / Q000628:therapy; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D008875:Middle Aged; D011594:Psychometrics / Q000295:instrumentation*; D011613:Psychotherapy; D016032:Randomized Controlled Trials as Topic; D015203:Reproducibility of Results; D055815:Young Adult