Inventario de Procesos de Cambio (in Spanish)
| User Information | |
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Acronym: |
IPC-AH |
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Author/Developer / Address: |
Trujols, J.; Tejero, A.; Casas, M.; |
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Publication dates: |
1997. |
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Description / Type of Assessment: |
IPC-AH is a 40-item self-report. |
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Primary use / Purpose: |
IPC-AH is based on the Processes of Change Inventory (DiClemente and Prochaska, 1985) for smokers. Its purpose is to assess the use of the several processes of change by opiate misusers. |
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Domains measured / Life Areas / Problems Assessed: |
The ten processes of change identified by Prochaska and DiClemente in their theoretical model for change addictive behaviours. |
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Population: |
Adults. |
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Administration / Completion Time: |
Approximately 7-8 minutes. |
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Scoring Procedures: |
Score of items on each change processes are added to obtain a score for these ten change processes. |
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Scoring Time: |
2-3 minutes. |
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Credentials/Training: |
Not necessary. |
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Source of Psychometrics: |
See relevant studies. |
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Languages: |
Spanish. |
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Availability / Inquiries: |
The authors. |
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Price: |
Free. |
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Practicability / usefulness: |
To assess the frequency of using ten different processes of change among opiate misusers in treatment. |
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Comments: |
The IPC-AH can be used as a research tool. Further studies are necessary before using the instrument for clinical purposes. |
For the first time in a sample of opiate addicts, the processes of change dimension of the Prochaska and DiClemente's transtheoretical model of change is tested. A self-report (the Processes of Change Inventory for Opiate Addicts, IPC-AH) for assessing the use frequency of the processes of change was administered in a sample of 178 heroin addicts. Its reliability, validity and discriminative efficiency were studied. An alpha reliability coefficient of 0.87 was obtained, A principal component analysis of the instrument revealed a three component solution which accounted for 34% of the variance. Comparisons between abstinent and non-abstinent subjects revealed significant differences (p<.0001) in two of the ten processes being considered: Counterconditioning and Stimulus Control, Theoretical and clinical implications of the results are discussed.
The processes of change dimension of Prochaska and DiClemente's transtheoretical model of change is tested in a sample of opiate addicts for the first time. A self-report (The processes of Change Inventory for Opiate Addicts, PCI-OA) designed to assess the frequency of processes of change was administered in a sample of 178 addicts in order to study its reliability, validity and discriminative efficiency. An "alpha" reliability coefficient of 0.87 was obtained. A principal component analysis of the measure revealed a three-component solution which accounted for 34% of the variance; "contemplation and preparation processes', "processes of action" and "processes of the final part of the action phase and maintenance". Comparisons between abstinent and non-abstinent subjects revealed differences (P< 0.0001) in two of the ten processes considered: Counterconditioning and stimulus control. A stepwise discriminant analysis yielded a linear combination of eight processes that correctly identified 78% of the total sample. Theoretical and clinical Implications of the results are discussed, suggesting that the PCI-OA can be considered as a useful self-report instrument for identifying which processes of change are being used by a specific opiate-dependent patient.
