This study integrates social exchange theory and the literature on stressful life events into a life-course approach to women's marital duration. We hypothesize that circumstances facilitating a successful transition into marriage have a cumulative effect, enhancing the likelihood of increased marital duration. By contrast, factors easing the transition to divorce have a negative impact on marital duration. We draw on a sample of 313 wives and mothers in an upstate New York community interviewed in 1956 and reinterviewed thirty years later. We find that structural factors (marital duration and previous marriage) and factors that increase women's options outside of marriage, such as self-esteem and returning to school, are more important than attitudinal factors in hastening the transition to divorce. Factors that ease the transition to marriage (similarity in religious beliefs and educational level) may not necessarily affects its duration.
To evaluate the impact of actual and perceived similarity on interpersonal attraction, we meta-analyzed 460 effect sizes from 313 laboratory and field investigations. Results indicated that the associations between interpersonal attraction and both actual similarity (r = .47) and perceived similarity (r = .39) were significant and large. The data also indicate that (i) actual similarity was important in no-interaction and short-interaction studies, (ii) there was a significant reduction in the effect size of actual similarity beyond no-interaction studies, and (iii) the effect of actual similarity in existing relationships was not significant. Alternatively, perceived similarity predicted attraction in no-interaction, short-interaction, and existing relationship studies. The implications of perceived similarity, rather than actual similarity, being predictive of attraction in existing relationships are discussed.
Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights.