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PSYCHOTHERAPY RESEARCH METHODS

From single-case studies to practice-based knowledge: Aggregating and synthesizing case studies

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Pages 601-611 | Received 15 Jul 2008, Published online: 22 Sep 2009
 

Abstract

Recent developments in case study methodology reflect a rising interest that clinicians and researchers share in building a clinically useful and empirically sound knowledge base from single-case studies. The present article describes three types of single-case studies (clinical, experimental, systematic) and examines their potential contributions to psychotherapy research. It then lays out three ways in which single-case studies can be aggregated and synthesized to enhance clinical understanding: (a) a case database that allows clinicians to efficiently search for relevant cases, (b) a metasynthesis of single-case studies that integrates common themes across similar cases, and (c) an individual case comparison method in which closely matched cases are compared to identify both therapeutic and hindering processes.

ABSTRACT

Die jüngsten Entwicklungen in der Fallstudien-Methodik zeigen die zunehmende Bedeutung dieser Methode, an der Kliniker und Forscher durch die Bildung einer klinisch sinnvollen und empirisch korrekten Wissensbasis einen gemeinsamen Anteil haben. Der vorliegende Artikel beschreit drei Arten an Einzelfallstudien (klinisch, experimentell, systematisch), und untersucht ihre potenziellen Beiträge für die Psychotherapieforschung. Dann werden drei Wege bereitgestellt, wie Einzelfallstudien aggregiert und synthetisiert werden können, um das klinische Verständnis zu verbessern: (a) eine Falldatenbank, welchen Klinikern erlaubt, effizient nach relevanten Fällen zu suchen, (b) eine Meta-Synthese von Einzelfallstudien, welche gemeinsame Themen über verschiedene Fälle hinweg integriert, und (c) eine Methode um Einzelfälle zu vergleichen, indem eng zusammenpassende Fälle verglichen werden, um sowohl therapeutische wie auch hinderliche Prozesse zu identifizieren.

RÉSUMÉ

Les développement récents dans la méthodologie de l’étude de cas reflètent un intérêt croissant partagé par les chercheurs et les cliniciens à construire une base de connaissance cliniquement utile et empiriquement solide à partir d’études de cas. L'article présent décrit trois types d’études de cas (clinique, expérimentale, systématique) et examine leur contribution potentielle dans la recherche en psychothérapie. Cela indique trois voies dans lesquelles des études de cas peuvent être agrégées et synthétisées pour augmenter la compréhension clinique : (a) une base de données de cas permettant aux cliniciens de chercher efficacement des cas pertinents ; (b) une méta-synthèse d’études de cas intégrant les thèmes communs pour des cas similaires ; et (c) une méthode de comparaison de cas individuels dans laquelle des cas étroitement comparables sont identifiés pour identifiés à la fois les processus thérapeutiques et les processus qui entravent la thérapeutique.

OS desenvolvimentos recentes na metodologia de estudos de caso reflectem um interesse crescente que é partilhado por clínicos e investigadores em construir conhecimento clinicamente útil e empiricamente válido baseado em estudos de caso. O presente artigo descreve três tipos de estudos de caso (clínicos, experimentais e sistemáticos) e examina as suas potenciais contribuições para a investigação em psicoterapia. Assim ,delineia três modos como os estudos de caso podem ser agregados e sintetizados para promover a compreensão clínica: a) Uma base de dados que permite aos clínicos de um modo eficiente procurar casos relevantes, b) uma meta-síntese de estudos de caso que integram temas comuns em casos semelhantes e, c), um método de comparação de casos individuais em que casos correspondentes são comparados como forma de identificar os processos terapêuticos.

ABSTRACT

I recenti sviluppi di metodologie di studio riflettono un crescente interesse da parte di medici e di ricercatori per contribuire alla costruzione di conoscenze clinicamente e empiricamente utili e solide basate sullo studio di un caso di studio. Il presente articolo descrive tre tipi di studi di caso singolo (clinica, sperimentale, sistematico) ed esamina il loro potenziale contributo alla ricerca in psicoterapia. Si prevedono, quindi, tre modi in cui il singolo caso studio può essere aggregato e sintetizzato per migliorare la comprensione clinica: (a) database di un caso che permette ai medici di effettuare la ricerca in modo efficace (b) una metasintesi del singolo caso, che integra temi comuni in casi analoghi, e (c) un metodo di confronto sul singolo caso in cui sono stati equiparati i casi per identificare i processi terapeutici.

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