Personal Numero 36 (1997) Link

In 1997, researchers Arthur Aron, Melinat, Aron, Vallone, and Bator published a seminal paper in the Personality and Social Psychology Bulletin titled "The Experimental Generation of Interpersonal Closeness: A Procedure and Some Preliminary Findings". The study sought to determine if interpersonal closeness could be "generated" in a laboratory setting through a structured series of 36 questions.

The core of the study is the Fast Friends procedure , a 45-minute task where pairs of strangers engage in reciprocal, escalating self-disclosure. Personal Numero 36 (1997)

The procedure's effectiveness varied based on individual attachment styles ; for example, high ego-identity subjects showed different closeness patterns when told to "protect themselves" compared to low ego-identity subjects. In 1997, researchers Arthur Aron, Melinat, Aron, Vallone,

The 36 questions are divided into three sets, each becoming progressively more personal. By engineering a "fast track" to closeness, the

Aron’s 1997 "Numero 36" protocol proved that intimacy is not merely a byproduct of time, but a structured outcome of vulnerability and reciprocal self-disclosure. By engineering a "fast track" to closeness, the study redefined how psychologists understand the development of the human social identity. The Experimental Generation of Interpersonal Closeness

The "36 Questions" achieved mainstream fame years later as a tool for romantic connection, but its scientific origin remains a cornerstone for studying interpersonal perception accuracy and relational satisfaction. Today, it is used to investigate how interpersonal closeness can be generated online and across different social demographics.

The procedure is grounded in Arthur Aron's research on the "self-expansion model," which suggests that individuals seek to include others in their self-concept to gain resources and perspectives.