ABSTRACT
Interpersonal solidarity is a feeling of closeness between people that develops as a result of shared sentiments, similarities, and intimate behaviors. Interpersonal solidarity is becoming increasingly more important in interpersonal relationship research, and this scale will help provide an index of how close relationships are. Research using this instrument has been scant, but the results are consistent that interpersonal solidarity as measured is correlated with related constructs in the expected direction. Future studies should provide additional evidence of internal consistency. Reliability information is sparse; however, the scale appears internally consistent. The first version of the Interpersonal Solidarity Scale consisted of 10 items, 9 of which formed a unidimensional scale with high internal consistency. Closeness items were added to improve the scale’s content validity and the resulting 20-item Likert-type scale was factor-analyzed. The scale appeared to be unidimensional and reliable.
