1. Attachments beyond intimacy;Ainsworth;American Psychologist,1989
2. Identity: a precursor to intimacy;Adams,1994
3. Children's romances;Broderick;Sexual Behavior,1972
4. The scree test for the number of factors;Cattell;Multivariate Behavioral Research,1966
5. From causal description to causal explanation: improving three exemplary evaluations of adolescent health programs;Cook,1993