In this doctoral thesis, a culturally-sensitive couple therapy model was developed and empirically investigated. In particular, a Western-based couple therapy, Emotionally-Focused Couple Therapy (EFT), was modified to enhance the cultural relevancy of this model to the Japanese population. An extensive literature review was conducted to examine the status of psychotherapy and couple research in Japan, and cultural differences between Western and Japanese couples, with a particular emphasis on important couple variables, including emotional expression, communication, conflict resolution, and attachment. Study objectives included an empirical investigation into cultural differences on key relationship variables of trust, attachment, communication, and conflict resolution, and the use of these findings to guide adaptations of EFT to enhance cultural relevance, and an exploration of the adapted EFT model with three Japanese couples. This study is significant in that it is the first to empirically evaluate the cross-cultural validity of EFT. This dissertation consists of two studies that have been combined in one article for the purpose of publishing the document in a Japanese journal. Both studies were combined in one article for various reasons. First, study one findings are integral to the development of the culturally-sensitive EFT model that is empirically investigated in the second study. Second, the article included in this dissertation will be translated and prepared for publication in a Japanese journal. Including both studies in one article is important given the lack of familiarity in the Japanese research community about key relationship variables, and particularly their applicability to a couple therapy system (i.e., EFT), and their use to measure change in a couple therapy outcome study.

In this doctoral thesis, a culturally-sensitive couple therapy model was developed and empirically investigated. In particular, a Western-based couple therapy, Emotionally-Focused Couple Therapy (EFT), was modified to enhance the cultural relevancy of this model to the Japanese population. An extensive literature review was conducted to examine the status of psychotherapy and couple research in Japan, and cultural differences between Western and Japanese couples, with a particular emphasis on important couple variables, including emotional expression, communication, conflict resolution, and attachment. Study objectives included an empirical investigation into cultural differences on key relationship variables of trust, attachment, communication, and conflict resolution, and the use of these findings to guide adaptations of EFT to enhance cultural relevance, and an exploration of the adapted EFT model with three Japanese couples. This study is significant in that it is the first to empirically evaluate the cross-cultural validity of EFT. This dissertation consists of two studies that have been combined in one article for the purpose of publishing the document in a Japanese journal. Both studies were combined in one article for various reasons. First, study one findings are integral to the development of the culturally-sensitive EFT model that is empirically investigated in the second study. Second, the article included in this dissertation will be translated and prepared for publication in a Japanese journal. Including both studies in one article is important given the lack of familiarity in the Japanese research community about key relationship variables, and particularly their applicability to a couple therapy system (i.e., EFT), and their use to measure change in a couple therapy outcome study.