An Evaluation of Population Estimates in Florida: April 1, 2000

The housing unit (HU) method is the most commonly used method for making small-area population estimates in the United States. These estimates are used for a wide variety of budgeting, planning, and analytical purposes. Given their importance, periodic evaluations of their accuracy are essential. In this article, we evaluate the accuracy of a set of HU population estimates for counties and subcounty areas in Florida, as of April 1, 2000. We investigate the influence of differences in population size and growth rate on estimation errors; compare the accuracy of several alternative techniques for estimating each of the major components of the HU method; compare the accuracy of 2000 estimates with that of estimates produced in 1980 and 1990; compare the accuracy of HU population estimates with that of estimates derived from other estimation methods; consider the role of professional judgment and the use of averaging in the construction of population estimates; and explore the impact of controlling one set of estimates to another. Our results confirm a number of findings that have been reported before and provide empirical evidence on several issues that have received little attention in the literature. We conclude with several observations regarding future directions in population estimation research.     

The interrelationships of positive affect,negative affect,and life satisfaction in an adolescent sample

A total of 266 adolescent students responded to two self-report well-being measures, the Positive and Negative Affect Schedule (Watson et al., 1988) and the Students' Life Satisfaction Scale (Dew and Huebner, 1994). The findings supported multidimensional models of subjective well-being. Similar to findings with adults and younger children, three separable factors of well-being were identified: positive affect, negative affect, and life satisfaction. Demographic variables correlated differentially with the three factors. Considered together with findings from other research, the results suggest the structural invariance of subjective well-being from middle childhood through adulthood.     

The Role of Life Satisfaction in the Relationship between Authoritative Parenting Dimensions and Adolescent Problem Behavior

Research examining environmental factorsassociated with adolescents' life satisfaction(LS) has revealed that familial variables(e.g., parent-child conflict, familystructure) are crucial correlates. Thepurpose of the current study was to identifyparticular dimensions of authoritativeparenting (strictness-supervision, socialsupport/involvement, and psychological autonomygranting) that are related to LS during early,middle, and late adolescence, as well as toexplore the hypothesis that LS serves as amediator between authoritative parenting andadolescent internalizing and externalizingbehavior. A sample of 1201 middle and highschool students completed self-report measuresassessing these constructs. Results indicatedstatistically significant relationships betweeneach authoritative parenting dimension andadolescent LS. Although all three parentingdimensions were positively related to LS,perceived parental social support emerged asthe strongest correlate. Importantdevelopmental differences were revealed,including the finding that the associationbetween parenting behaviors and adolescents' LSchanged as children aged. Last, LS fullymediated the relationship between socialsupport and adolescent problem behavior andpartially mediated relationships between theremaining authoritative parenting dimensions(i.e., strictness-supervision, psychologicalautonomy granting) and maladaptive adolescentbehavior.     

changes in the propensity to live alone: 1950–1976

The growth in single-person households is a pervasive behavioral phenomenon in the United States in the post-war period. In this paper we investigate determinants of the propensity to live alone, using 1970 data across states for single men and women ages 25 to 34 and for elderly widows. Income level appears to be a major determinant of the propensity to live alone. The estimated cross-state equations track about three-quarters of the increase in the propensity to live alone between 1950-1976and suggest that income growth has been the principal identified influence. Other variables found to affect (positively) the propensity to live alone include mobility, schooling level, and for young people a measure of social climate; non-whites appear to have a somewhat lower propensity to live alone.     

The dynamics of smallpox epidemics in Britain, 1550–1800

Time-series analysis, a valuable tool in studying population dynamics, has been used to determine the periodicity of smallpox epidemics during the seventeenth and eighteenth centuries in two contrasting representative situations: 1) London, a large city where smallpox was endemic, and 2) Penrith, a small rural town. The interepidemic period was found to be two years in London and five years in Penrith. Equations governing the dynamics of epidemics predict 1) a two-year periodicity and 2) that oscillatory epidemics die out quickly. It is suggested that epidemics were maintained by a periodic variation in susceptibility linked either to a five-year cycle of malnutrition or to an annual cycle. Computer modeling shows how the very different patterns of epidemics are related to population size and to the magnitude of the oscillation in susceptibility.     

Preliminary Validation of the Brief Multidimensional Students' Life Satisfaction Scale (BMSLSS)

Two studies investigated the psychometricproperties of the Brief MultidimensionalStudents' Life Satisfaction Scale (MSLSS: Huebner, 1994). In Study 1, 221 middle schoolstudents completed the Brief MultidimensionalStudents' Life Satisfaction Scale (BMSLSS),Multidimensional Students' Life SatisfactionScale, Students' Life Satisfaction Scale (SLSS:Huebner, 1991a), Positive and Negative AffectSchedule-Children's Version (Laurent et al.,1999), Children's Social Desirability Scale(Crandall et al., 1965), and a one-item globallife satisfaction rating (GLLS). Students alsorated the importance of the BMSLSS five lifesatisfaction domains (Family, Friends, School,Self, Living Environment). The results revealedacceptable internal consistency reliability,criterion-related validity, and constructvalidity for the BMSLSS Total score forresearch purposes. Furthermore, evidence ofconvergent and discriminant validity for theBMSLSS domain scores was also obtained throughmultitrait-multimethod analyses. Finally, theresults failed to provide strong support forthe usefulness of importance scores inpredicting overall life satisfaction;unweighted BMSLSS scores were highly related toglobal life satisfaction (GLLS) scores. InStudy 2, 46 high school students completed theBMSLSS and MSLSS to test the generalizabilityof the convergent and discriminant validityfindings with older adolescents. The findingsrevealed stronger evidence of validity withthis age group. Overall, the findings offered preliminary support for the reliability andvalidity of the BMSLSS, suggesting that it canserve as a useful alternative to the longerMSLSS in studies with adolescents in whichbrevity is an important consideration.     

Opportunity for Adult Bonding/Meaningful Neighborhood Roles and Life-Satisfaction among USA Middle School Students

This study investigated the relationship between adolescent life- satisfaction and bonding to adults/developing meaningful roles in the neighborhood within a pilot study of slightly modified version of the CDC Middle School Youth Risk Behavior Survey (MSYRBS) in a southern state in the USA. Overall, 43% of students reported that they were satisfied with their lives overall, and 34% reported that they experienced positive adult relationships and meaningful roles in their neighborhoods. After adjusting for socioeconomic status and family structure, differential associations were found between adolescent life satisfaction and bonding to adults/developing meaningful roles. Opportunities for adult bonding and meaningful roles in the neighborhood related to increased life satisfaction more strongly for Caucasian students than African-American students. Post-Hoc analyses suggest that the explanation for these differential relationships may involve socioeconomic status. *This research was conducted via the South Carolina Middle School Youth Risk Behaviour Survey funded by the CDC/Legacy Foundation, Atlanta, Georgia in cooperation with the South Carolina Department of Health & Environmental Control, Columbia, South Carolina.     

Psychological Approaches to Values in Organizations and Organizational Behavior Management

Researchers studying individual and organizational value congruence are concerned with the degree to which the values of the employee and the organization for which he or she works agree and the affective outcomes that more or less agreement might predict. While a robust area of research, the applications following from it are somewhat limited. This paper reviews the concepts and research findings concerning value congruence, discusses various behavioral interpretations of the values construct, applies those interpretations to the organizational level, and offers recommendations for how these interpretations might point to more successful organizational change initiatives.