Suchergebnisse

This brief represents a comprehensive review of methods for estimating characteristics of the foreign-born population in the United States, specifically oriented toward characteristics by legal status. A variety of methods have been proffered over the past many decades, in a large variety of venues; this work brings them together, attempts to impart some order on the definition of 'legal status,' and describes strengths and deficiencies both in methods and in data. The authors have a combined 50 years of experience in both demographic and statistical methodology.

This study models the ability of an experimenter, via control over a dyad's environmental reinforcement structure, to deternine the level of asymnmetry in their interaction. Based on a model of asymmetry that incorporates the dimensionis of directive activity compliance, entvironmental reward, and environimental punishment, we demonstrate how this model can be linked to a method of conztrolling enviroznmenttal rewards and punishmnents. From this we develop a system model of dyadic initeraction under coniditions where rewards to the dyad from the environment are under experimental control. Using 14 male-female dyads who had been together for at least I year, we tested the fit of the model over time. Results from these data are in accord wtih a system model specifying a linkage between external and internal systemns and demonstrate that control of a dyad's intenal structure is only partially dependent otn mazipulations in the external system.