Reference:
Glick, G. C., & Rose, A. J. (2011). Prospective associations between friendship adjustment and social strategies: Friendship as a context for building social skills. Developmental Psychology, 47, 1117–1132. http:// dx.doi.org/10.1037/a0023277
Name and number of scales:
Positive: validation and caring, companionship and recreation, conflict resolution, intimate exchange, and helping. Negative: conflict and betrayal.