Explains multiple regression, demonstrates its flexibility for analyzing data from various designs, and discusses interpretation of results from multiple regression analysis. Presents regression equations for single independent variable and for two or more independent variables, followed by a discussion of coefficients related to these. Compares…

Tests alternative theoretical models of environment-individual interaction. Findings point to the importance of person-environment fit in the areas of congregation, impulse control, and segregation in explaining morale. (Author)

The purpose of "What Works in Reading?" was to identify the factors that contribute most strongly to achievement growth in reading. The study, which investigated fourth graders in 25 schools, was run jointly by the Philadelphia School District and the Federal Reserve Bank of Philadelphia, and the respect and understanding that developed…

Reviews several potential problems that often invalidate statistical tests of social theories. Discusses how there may be very serious identification problems in the estimation of the relationship between executions and homicides, and that serious questions may be raised regarding the validity of any particular estimation of this relationship.…