The Data Envelopment Analysis and Equal Weights/Minimax Methods of Composite Social Indicator Construction: a Methodological Study of Data Sensitivity and Robustness

In the construction of composite or summary social indicators/indices, a recurrent methodological issue pertains to how to weight each of the quality-of-life/well-being components of the indices. Two methods of composite index construction that have been widely applied empirically in recent decades are Data Envelopment Analysis (DEA), which is based on an optimization principle, and the equal weights/minimax (EW/MM) method, which has been shown to have minimax statistical properties in the sense that it minimizes maximum possible disagreements among individuals on weights. This paper applies both of these methods to two empirical datasets of social indicators: 1) data on 25 well-being indicators used in the construction of state-level Child and Youth Well-being Indices for each of the 50 U.S. states, and 2) data on indicators of life expectancy, educational attainment, and income used in the construction of the United Nations Human Development Programme’s Human Development Index (HDI) for 188 countries. In these empirical contexts, we study issues of measurement sensitivity of the EW/MM and DEA methods to the numbers of indictors used in the construction of the composite indices and corresponding issues of robustness. We find that the DEA method is more sensitive to the numbers of component indicators than the EW/MM method. In addition, the composite indicators formed by the EW/MM and DEA methods become more similar as the numbers of indicators in the composites decreases. We also apply Chance-Constrained DEA method to reclassify countries in the HDI dataset by levels of human development. The resulting human development groupings of the DEA composite indices have a large overlap with those of the HDI in the Human Development Reports, which are based on fixed cut-off points derived from the quartiles of distributions of the HDI component indicators.

     

An Outcome- and Process-Oriented Examination of a Golf-Specific Secondary Task Strategy to Prevent Choking Under Pressure

The present study examined a new golf-specific secondary task to prevent choking under pressure during golf putting. The study examined skilled (n = 20) and novice (n = 24) golfers on a putting task under high- and low-pressure, while carrying out either a golf-specific or an irrelevant letter generation secondary task to prevent skill-focused attention. Results revealed that both secondary tasks prevented choking under pressure in skilled golfers, but not in novices. Additionally, skilled participants displayed increased movement variability associated with improved performance during secondary task performance. These findings provide support for the viability of the new secondary task technique.     

Exploring urban students' constructions about school, work, race, and ethnicity

This qualitative study is an exploration of 32 urban high school students' narratives about the connection between school, work, and societal expectations of their future success related to their racial and ethnic background. The sample varied along 2 contextual dimensions: participation in a psychoeducational intervention (Tools for Tomorrow) and developmental status (i.e., half the sample were 9th-grade students and the other half were 12th-grade students). Using consensual qualitative research, the narratives revealed 3 major domains: future orientation; students' perceptions of society's expectations based on race and ethnicity; and students' perception of the role of their race and ethnicity in future success. Results reveal that the majority of students endorse a connection between school and work, believe that society holds low expectations for them based on their racial and ethnic background, and cannot predict their future success based on their background.     

Book reviews

DIAMOND, S. J. The Social Behaviour of Animals. London: Baqtsford. 1970. Pp. 256. £2.50.

JARRARD, L. E. (Ed.). Cognitive Processes in Non-human Primates. New York: Academic Press. 1971. Pp. 188.

BROZEK, J. and SLOBIN, D. I. (Eds). Psychology in the USSER: An Historical Perspective. New York: International Arts and Sciences Press. 1972. Pp. x + 30.1. $ 15.00.

A. R. JENSEN. Genetics and Education. London: Methuen. 1972. Pp. Vii + 379. £ 3.50.

OATLEY, K. Brain Mechanisms and Mind. London: Thames and Husdson. 1972. Pp. 216. £2.25.

BOAKES, R. A. and HALLIDAY, M. S., (Eds). Inhibition and Learning. London: Academic Press 1972. Pp. 568. £7.25.

TOBACH, E., ARONSON, L. R. and SHAW, E. (Eds). The Biopsychology of Development. New York: Academic Press. 1971. Pp.xix + 593. dollar 22.50.

MOLTZ, H. (Ed.). The Ontogeny of Vertebrate Behavior. New York and London: Academic Press. 1971. Pp. 500. $ 22.50.

SOKOLOV, A. N. Inner Speech and Thought. London: Plenum Publishment Co. 1972. Pp. 283. £ 10.50

SHOUKSMITH, G. Intelligence, Creativity and Cognivity and Cognitive Style. LOndon: Batsford. 1970.Pp. 240. £ 2.30,

BOLTON, N. The psychology of Thinking. Lond Methuuen. 1972. Pp. 291. £3.20.

JOHNSON, D. M. Systematic Introduction to The Psychology of Thinking. New York: Harper and Row, 1972. Pp. 498. £ 5.10.

LLOYD, B. Preception and Cognition. Harmondsworth: Penguin Books. 1972. Pp. 190. £ 0.80.     

The interval between the CS and the UCS as a determiner of generalization performance

Rats were trained in a conditioned taste aversion paradigm in order to determine whether a trace interval between the conditioned stimulus (CS) and the unconditioned stimulus (UCS) would result in the forgetting of stimulus attributes. Accordingly, subjects were conditioned with milk (CS), given either an immediate or a delayed injection of lithium chloride (UCS), and tested 48 h later with either milk or chocolate milk, a generalized flavor. The rats conditioned immediately following the presentation of the CS avoided milk more than chocolate milk, indicating discrimination between the two flavors. Those conditioned after a trace interval avoided both flavors equally, suggesting a loss of stimulus attributes of the original CS. Delay rats, however, still exhibited substantial learning when compared with controls not experiencing the UCS. These results allege a role for the forgetting of stimulus attributes during a trace interval in addition to following a complete learning episode.     

Stress,coping, and depressive symptomatology in Latina and Anglo aids caregivers

In a survey of 432 AIDS caregivers, we examined differences in the stress and coping process and predictors of depressive symptomatology by ethnicity and gender. Our sample included 192 Anglo gay and bisexual male partners, 86 Anglo women, and 154 Latina family caregivers. We examined differences in primary and secondary stressors as predictors of depression; differences in sociodemographic and background factors, and differences in the predictive value and mediating influences of factors that may attenuate the relationship between stress and depression. Results indicate substantial differences in predictors and mediators of depression across groups. While all groups evidenced moderate levels of depression, background factors influenced depression mostly for Latinas. Depression in gay and bisexual partners was more influenced by primary objective stressors such as assisting with activities of daily living (ADLs). Service acquisition appears to be shaped by access, knowledge, and cultural acceptance. Based on our findings, we suggest that service provision for caregivers must also vary and be attuned to cultural and gender differences that may influence perception of stress and depression for caregivers.     

The drive behind learning and memory: A hypothesis of its origin

A mechanism that made movement possible early in the evolution of animal life is considered here to be the drive behind all behavior. It is the build-up of hydrostatic pressure in order to stretch muscles again. In vertebrates, this still occurs in the hindgut and therefore the hindgut plays the central role in this drive-concept. The theory presents a new view upon learning and memory.     

Stressful life events and predictors of post-traumatic growth among high-risk early emerging adults

Stressful life events (SLEs) may elicit positive psychosocial change among youth, referred to as post-traumatic growth (PTG). We assessed types of SLEs experienced, degree to which participants reported PTG, and variables predicting PTG across 24 months among a sample of high-risk, ethnically diverse, early emerging adults. Participants were recruited from alternative high schools (n = 564; mean age = 16.8; 65% Hispanic). Multi-level regression models were constructed to examine the impact of environmental (SLE quantity, severity) and personal factors (hedonic ability, perceived stress, developmental stage, future time orientation) on a composite score of PTG. The majority of participants reported that positive changes resulted from their most life-altering SLE of the past two years. Predictors of PTG included fewer SLEs, less general stress, having a future time perspective, and greater identification with the developmental stage of emerging adulthood. Findings suggest intervention targets to foster positive adaptation among early emerging adults who experience frequent SLEs.     

Does Avatar Appearance Matter? How Team Visual Similarity and Member–Avatar Similarity Influence Virtual Team Performance

This multimethod study investigated how avatar appearance influences virtual team performance. This study is the first to integrate the framework of social identity model of de‐individuation effects (SIDE) and Self‐Identification theory, using “morphing” techniques. Results were obtained from a 2 (team visual similarity: dissimilar vs. similar team avatars) × 2 (member–avatar similarity: cartoon avatars vs. avatar similar to self) experiment (N = 240). The findings indicated that teams using “morphed team avatars,” which combined both a high degree of team visual similarity and member–avatar similarity in their appearances, performed best on the task, and showed greater social attraction than teams in the other conditions. Moreover, content analysis of the chat conversations revealed that these teams interacted more strategically and expressed a greater motivation to solve the task.