Video Deficit in Toddlers’ Object Retrieval: What Eye Movements Reveal About Online Cognition

The purpose of this study was to determine whether toddlers exhibit different eye‐movement patterns when watching real events versus video demonstrations in an object‐retrieval task. Twenty‐four‐month‐olds (N = 36) searched for a sticker on a felt board after watching an experimenter hide it behind a felt object in person or via video. Eye movements during the hiding event were recorded. Compared to those watching in‐person events, children watching video spent more time looking at the target location overall, yet they had relatively poor search performance. Visual attention to the target location predicted search performance in the video condition only; children who watched in‐person hiding events had high success rates even if they paid relatively little visual attention to the correct location. Findings are consistent with the hypothesis that toddlers process information more quickly for in‐person (versus video) events, enabling them to learn as well (or better) despite relatively low selective attention. Thus, relatively poor encoding, as well as memory retrieval, may underlie the video deficit.     

Seeking and Processing Information for Health Decisions among Elderly Chinese Singaporean Women

Information behavior includes activities of active information seeking, passive acquisition of information, and information use. Guided by the Elaboration Likelihood Model, this study explored elderly Singaporean women’s health information behavior to understand how they sought, evaluated, and used health information in everyday lives. Twenty-two in-depth interviews were conducted with elderly Chinese women aged 61 to 79. Qualitative analysis of the interview data yielded three meta-themes: information-seeking patterns, trustworthiness of health information, and peripheral route of decision making. Results revealed that elderly women took both systematic and heuristic approaches to processing information but relied on interpersonal networks to negotiate health choices.     

Revealing stereotype threat effects and women’s maths performance: the moderating role of mathematical anxiety / Análisis de los efectos de la amenaza del estereotipo y el rendimiento matemático de las mujeres: el rol moderador de la ansiedad matemática

Stereotype threat is a phenomenon by which members of a stereotyped group have their performance impaired when their group identity is made salient. Previous research has found that telling women about stereotype threat prevents impaired performance in mathematical tasks. Moreover, the effect of stereotype threat seems to be moderated by mathematical anxiety. The present work seeks (1) to test the effect of stereotype threat on women’s maths performance taking into account a previous maths score, (2) to replicate in a Spanish sample the protective effect of teaching intervention and (3) to test the moderator role of maths anxiety in the relationship between stereotype threat and impaired performance. Participants (110 undergraduate students) were randomly assigned to either stereotype threat or teaching intervention condition and the decrement in their performance was used as a dependent variable. Stereotype threat only impairs the performance of women with higher maths anxiety scores, and teaching intervention is effective to ameliorate this decrement in performance. We recommend the development of programmes that teach girls about stereotype threat and reduce mathematical anxiety.     

Developmental Trajectories of Social Justice Values in Adolescence: Relations with Sympathy and Friendship Quality

This study examined developmental trajectories of social justice values (SJV) in a representative sample of Swiss adolescents (N = 1258) at 15 (Time 1), 18 (Time 2), and 21 years of age (Time 3). SJV and friendship quality were measured via self‐reports. Sympathy was assessed via self‐ and mother‐reports. Latent class growth analysis revealed three developmental trajectories of SJV: high‐stable (80 percent), moderate‐decreasing (17 percent), and low‐increasing (3 percent). Adolescents with low levels of self‐ and mother‐reported sympathy were more likely to be members of the low‐increasing than the high‐stable or moderate decreasing trajectory groups. Adolescents who reported low levels of sympathy and friendship quality at 15 years of age were more likely to be members of the moderate‐decreasing trajectory group than the high‐stable trajectory group. Results are discussed with respect to the potential significance of sympathy and friendship quality for understanding the development of SJV during adolescence.     

Approximate and generalized pivotal quantities for deriving confidence intervals for the offset between two clocks

Development of algorithms that estimate the offset between two clocks has received a lot of attention, with the motivating force being data networking applications that require synchronous communication protocols. Recently, statistical modeling techniques have been used to develop improved estimation algorithms with the focus being obtaining robust estimators in terms of mean squared error. In this paper, we extend the use of statistical modeling techniques to address the construction of confidence intervals for the offset parameter. We consider the case where the distributions of network delays are members of a scale family. Our results include an asymptotic confidence interval and a generalized confidence interval in the sense of [S. Weerahandi, Generalized confidence intervals, Journal of the American Statistical Association 88 (1993) 899–905. Correction in vol. 89, p. 726, 1994]. We compare and contrast the two approaches for obtaining a confidence interval, and illustrate specific applications using exponential, Rayleigh and heavy-tailed Weibull network delays as concrete examples.     

Inflationary Expectations in Israel: A Multiple Indicators Approach

This article derives unobservable short-term inflationary expectations in Israel from their postulated effects on the velocity of demand deposits and the nominal interest rate. A multiple-indicators model is estimated to assess the impact of inflationary expectations on these variables. The expectations-formation mechanism is estimated using a multiple indicators–multiple causes (MIMIC) model. This methodology allows us to test for the structural stability of the model and estimate the relative variances of the postulated error components. Moreover, this procedure contains a built-in specification test of the chosen expectations-formation mechanism.     

Rural Depopulation: Growth and Decline Processes over the Past Century

This article highlights the rise and geographic spread of depopulation in rural America over the past century. “Depopulation” refers to chronic population losses that prevent counties from returning to an earlier period of peak population size. In this article, we identify 746 depopulating counties—mostly nonmetropolitan—representing 24 percent of all U.S. counties. More than 46 percent of remote rural counties are depopulating compared to 24 percent of the adjacent nonmetropolitan counties and just 6 percent of metropolitan counties. Rural county populations often peaked in size during the 1940s and 1950s, especially in the agricultural heartland. Depopulation today reflects a complex interplay of chronic net out‐migration and natural decrease that is rooted in the past. Depopulation not only is a direct result of persistent out‐migration but also reflects large second‐order effects expressed in declining fertility and rising mortality (usually associated with population aging). Depopulation has become a signature demographic phenomenon in broad regions of rural America.     

Rationality for Economists?

Rationality is a complex behavioral theory that can be parsed into statements about preferences, perceptions, and process. This paper looks at the evidence on rationality that is provided by behavioral experiments, and argues that most cognitive anomalies operate through errors in perception that arise from the way information is stored, retrieved, and processed, or through errors in process that lead to formulation of choice problems as cognitive tasks that are inconsistent at least with rationality narrowly defined. The paper discusses how these cognitive anomalies influence economic behavior and measurement, and their implications for economic analysis.