Today, attachment research has become increasingly more quantitative and complex, utilizing extremely sophisticated statistical analyses often based on enormous synthesized datasets across the globe (Verhage et al., 2016). This marks a significant advancement in the attachment field in particular and developmental fields in general. However, this phenomenon arguably restricts the ability to visualize interactions of each parent-child dyad, on which the relationship quality is assessed. Notably, the Adult Attachment Interview (AAI) and the Strange Situation Procedure (SSP) are the most validated, widely-used attachment measures world-wide, known to predict attachment transmission. This paper demonstrates the qualitative presentation of attachment transmission data, comparing samples from the US and Japan. We present case studies for each main attachment category through AAI excerpts, SSP behavioral summaries, and the expected transmission process. We also compare case studies cross-culturally to confirm the universality of attachment phenomena as well as to explore any cultural differences that may affect attachment expressions.
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