Physical attractiveness and health: comment on Weeden and Sabini (2005)

Evolutionary behavioral biology suggests that certain characteristics of the human face and body are important for mate preferences and are therefore subject to sexual selection. J. Weeden and J. Sabini identify a number of weaknesses in the association between traits' attractiveness and health. In contrast, the authors argue that (a) studies on preferences for physical characteristics that rely on 1 trait permit only limited interpretation, (b) limitations placed on J. Weeden and J. Sabini's review exclude important associations, (c) there are misconceptions in their treatment of some traits, and (d) their selected literature provides an inaccurate picture regarding effect size. The authors suggest that future research in this field should seek conceptual and methodological constancy in trait selection and in the evaluation of attractiveness- and health-related traits.     

Publication bias in psychological science: comment on Ferguson and Brannick (2012)

It is well documented that studies reporting statistically significant results are more likely to be published than are studies reporting nonsignificant results--a phenomenon called publication bias. Publication bias in meta-analytic reviews should be identified and reduced when possible. Ferguson and Brannick (2012) argued that the inclusion of unpublished articles is ineffective and possibly counterproductive as a means of reducing publication bias in meta-analyses. We show how idiosyncratic choices on the part of Ferguson and Brannick led to an erroneous conclusion. We demonstrate that their key finding--that publication bias was more likely when unpublished studies were included--may be an artifact of the way they assessed publication bias. We also point out how the lack of transparency about key choices and the absence of information about critical features of Ferguson and Brannick's sample and procedures might have obscured readers' ability to assess the validity of their claims. Furthermore, we demonstrate that many of the claims they made are without empirical support, even though they could have tested these claims empirically, and that these claims may be misleading. With their claim that addressing publication bias introduces subjectivity and bias into meta-analysis, they ignored a large body of evidence showing that including unpublished studies that meet the inclusion criteria of a meta-analysis decreases (rather than increases) publication bias. Rather than exclude unpublished studies, we recommend that meta-analysts code study characteristics related to methodological quality (e.g., experimental vs. nonexperimental design) and test whether these factors influence the meta-analytic results.     

Encoding specificity in short-term memory for movement information: a comment on Lee and Hirota (1980)

Lee and Hirota (1980) claimed to provide evidence for the encoding specificity principle for movement information. I argue that their interpretations are confounded by methodological and theoretical factors. I further suggest that their findings are compatible with generation-recognition models of memory retrieval and thus, their study does not provide an adequate test for investigating encoding-retrieval relations. Finally, I discuss the problems and dangers of borrowing theoretical concepts from verbal domain and applying them indiscriminately to the motor domain.     

Personal goals and personality traits among young adults: Genetic and environmental effects

To assess genetic and environmental contributions to personal goals, 1279 twins aged 20-26 filled in Personal Project Analysis and NEO-FFI inventories. Personal goals relating to education, the respondent’s own family, friends, property, travel and self showed primarily genetic and unique environmental effects, whereas goals related to parents and relatives showed both shared and unique environmental effects. The variation in goals related to health, work, hobbies and life philosophy was attributable to non-shared environmental effects. Openness to experience and personal goals related to family, education and property shared a significant amount of genetic influence. The same was true for extraversion and self-related goals, and agreeableness and goals related to property.     

Evolving science in adolescence: comment on Ellis et al. (2012)

Ellis et al. (2012) bring an evolutionary perspective to bear on adolescent risky behavioral development, clinical practice, and public policy. The authors offer important insights that (a) some risky behaviors may be adaptive for the individual and the species by being hard-wired due to fitness benefits and (b) interventions might be more successful if they move with, rather than against, the natural tendencies of an adolescent. Ellis and colleagues criticize the field of developmental psychopathology, but we see the 2 fields as complementary. Their position would be enhanced by integrating it with contemporary perspectives on dynamic cascades through which normative behavior turns into genuinely maladaptive outcomes, dual processes in adolescent neural development, and adolescent decision making. Finally, they rightly note that innovation is needed in interventions and policies toward adolescent problem behavior.     

Conceptualizing and measuring personality vulnerability to depression: comment on Coyne and Whiffen (1995)

J. C. Coyne and V. E. Whiffen (1995) reviewed research on personality vulnerability to depression, focusing on S. J. Blatt's (1974, 1990) concepts of dependency and self-criticism and A. T. Beck's (1983) concepts of sociotropy and autonomy. The authors discuss 6 issues raised in that review: (a) the typological or dimensional nature of vulnerability, (b) the theoretical implications of "mixed" vulnerability, (c) the relations of vulnerability to Neuroticism. (d) the potential confounding of vulnerability with concurrent depression, (e) the potential confounding of vulnerability with social context, and (f) the differentiation of dependency from relatedness. The authors conclude that Blatt's and Beck's concepts are continuous, nearly orthogonal dimensions that can be identified and measured independently from Neuroticism, depression, and social context.     

Moving beyond pure signal-detection models: comment on Wixted (2007)

The dual-process signal-detection (DPSD) model assumes that recognition memory is based on recollection of qualitative information or on a signal-detection-based familiarity process. The model has proven useful for understanding results from a wide range of memory research, including behavioral, neuropsychological, electrophysiological, and neuroimaging studies. However, a number of concerns have been raised about the model over the years, and it has been suggested that an unequal-variance signal-detection (UVSD) model that incorporates separate recollection and familiarity processes (J. T. Wixted, 2007) may provide an equally good, or even better, account of the data. In this article, the authors show that the results of studies that differentiate these models support the predictions of the DPSD model and indicate that recognition does not reflect the summing of 2 signal-detection processes, as the new UVSD model assumes. In addition, the assumptions of the DPSD model are clarified in order to address some of the common misconceptions about the model. Although important challenges remain, hybrid models such as this provide a more useful framework within which to understand human memory than do pure signal-detection models.     

Socialization, personality development, and the child's environments: comment on Vandell (2000)

Although many socialization agents influence children's behavior (D. L. Vandell, 2000), the evidence (e.g., from intervention studies) indicates that each exerts its influence only within its own domain. Context effects and genetic effects are among the confounding factors that make it impossible, given current data, to reject the null hypothesis of zero long-term effects of parenting on child outcomes. Problems with the prevailing view of development cannot be solved by invoking within-home environmental differences or gene- environment interactions. Group socialization theory can account for findings that do not fit the prevailing view. The theory attributes outside-the-home socialization to identification with a peer group and assimilation of group norms, but attributes nongenetic variation in personality to differentiation within the group. The latter proposition is still largely untested but other aspects of the theory are well supported by evidence.     

Regarding the complexity of additive clustering models: Comment on Lee (2001)

The additive clustering approach to modeling pairwise similarity of entities is a powerful tool for deriving featural stimulus representations. In a recent paper, Lee (2001) proposes a statistically principled measure for choosing between clustering models that accounts for model complexity as well as data fit. Importantly, complexity is understood to be a property, not merely of the number of clusters, but also their size and pattern of overlap. However, some caution is required when interpreting the measure, with regard to the applicability of the Hadamard inequality to the complexity matrix.     

Learning-forgetting independence, unidimensional memory models, and feature models: comment on Bogartz (1990)

In his recent articles, Bogartz offered a definition of what it means for forgetting rate to be independent of degree of original learning. He showed that, given this definition, independence is confirmed by extant data. Bogartz also criticized Loftus's (1985b) proposed method for testing independence. In this commentary, we counter Bogartz's criticisms and then offer two observations. First, we show that Loftus's horizontal-parallelism test distinguishes between two interesting class of memory models: unidimensional models wherein the memory system's state can be specified by a single number and multidimensional models wherein at least two numbers are required to specify the memory system's state. Independence by Loftus's definition is implied by a unidimensional model. Bogartz's definition, in contrast, is consistent with either model. Second, to better understand the constraints on memory mechanisms dictated by the mathematics of the models under consideration, we develop a simple but general feature model of learning and forgetting. We demonstrate what constraints must be placed on this model to make learning and forgetting rate independent by Loftus's and by Bogartz's definitions.     

Social exclusion and the hierarchical defense system: comment on MacDonald and Leary (2005)

G. MacDonald and M. R. Leary hypothesized that physical pain and social exclusion share many affective features in common. In this comment, the author discusses the implications of J. A. Gray and N. McNaughton's (2000) hierarchical defense system model, which MacDonald and Leary used in the development of their theoretical claims. Issues are discussed that require, at least, clarification; but more substantive problems need closer consideration of hierarchically organized defense. It is argued that research findings may be better understood (a) by systems of interacting neural modules, which lead to state dissociations between affective states, and (b) by general modulatory influences on the entire defense system that lead to trait associations (i.e., personality) between physical pain and emotional distress.     

Toward a process-based framework for classifying personality tests: comment on Meyer and Kurtz (2006)

Meyer and Kurtz (2006) argued that the longstanding psychological test labels "objective" and "projective" have outlived their usefulness, and invited further work focusing on alternative terms for these measures. This Comment describes a framework for classifying personality tests based on the psychological processes that occur as people respond to test stimuli. Because an attribution process is involved in responding to both types of measures, those instruments formerly called "objective" tests are labeled self-attribution tests, and those formerly classified as "projective" tests are labeled stimulus-attribution tests. The possibility of extending the process-based framework beyond personality, to psychological tests in general, is also discussed. Clinical and empirical implications of a process-based framework are considered.     

Age changes in personality and their origins: comment on Roberts, Walton, and Viechtbauer (2006)

Comments on the original article "Patterns of Mean-Level Change in Personality Traits Across the Life Course: A Meta-Analysis of Longitudinal Studies," by B. W. Roberts, K. W. Walton, and W. Viechtbauer. Although Roberts et al depicted the present authors as proponents of the immutability of traits, in fact we have always acknowledged the possibility of change, and we are pleased that the results of their meta-analysis are consistent with our conclusions about modest change after age 30. We agree with B.W. Roberts et al that analyses should be conducted at the level of more specific traits, but prefer the 30 facets of the Revised NEO Personality Inventory to the Social Dominance-Social Vitality distinction. The origins of age changes might be found either in environmental influences common to all cultures or in biologically based intrinsic maturation; we offer some reasons for preferring the latter interpretation. Meta-analyses are useful but not definitive, and the resolution of the origin question lies in further research.     

Evolution of life-history trade-offs in mate attractiveness and health: comment on Weeden and Sabini (2005)

J. Weeden and J. Sabini's finding of small to no relation between traits rated as attractive in a mate and health of that mate might be interpreted as consistent with C. Darwin's (1859) proposal that these traits are arbitrary signs of beauty. However, such a conclusion would be premature. A combination of consistent empirical findings with nonhuman species and theoretical reasons argues for a continued search for honest signals of genetic fitness and reproductive health in human mate choices. Moreover, (a) even quite small relationships can be important when viewed across generations, and (b) traits that make a potential mate attractive at one age can result in poor health or early death at a later age. These life-history trade-offs greatly complicate the empirical study of attractiveness-health relations, and their potential importance has been underestimated by J. Weeden and J. Sabini.     

Men in female-dominated professions: Distinguishing personality and background features

Personality and background features of men in female-dominated professions were assessed by comparing survey data on 54 men employed in atypical professions (A′s) with 63 men employed in sex-typical fields (S′s). Subjects were American born, college-educated males, under 50 years of age, employed in fields with over 75% male or female participation, and recruited in Atlanta in 1978. Subjects completed a biographical questionnaire, the Cattell 16 PF, and the Bem Sex Role Inventory under three instructional sets. In comparison with S′s the A′s showed lower adherence to traditional sex-role expectations on the Bem Sex Role Inventory, in the allotment of sex-typed household responsibilities, and in their greater “tender-minded” emotional sensitivity on the Cattell 16 PF. In terms of their personal histories, A′s more frequently reported having had employed mothers, having had distant relationships with their fathers, and having been positively influenced in their career choices by women. A′s more frequently experienced a death of a parent or sibling, or parental divorce or separation, and frequently mentioned such stresses as sensitizing them to their nurturant and emotional capabilities. There was also evidence that upward-mobility strivings may have contributed to atypical career choice, with A′s more frequently being members of racial minorities and/or of lower socioeconomic background. As expected, in contrast to S′s, A′s shared personality and socialization factors indicative of lower sex-typing, thus confirming the psychological significance of the sex composition of one's occupation for men as was confirmed earlier for women.     

Selective migration among southern blacks: A reinterpretation of Lee (1951)

Comparisons of the mean IQs of Northern and Southern blacks have consistently shown a 7–12 point difference favoring the former group. Explanations of this difference have been highly polarized. Hereditarians have generally favored an hypothesis of selective migration; environmentalists have tended to ascribe the difference to such environmental causes as education, discrimination and cultural deprivation. Two studies (Klineberg, 1935; Lee, 1951) have been interpreted by many commentators as decisively vindicating the environmentalist position. In this paper this interpretation is questioned and certain neglected features of Lee's (1951) data are construed as providing strong evidence for selective migration.