Rater Personality and Performance Dimension Weighting in Making Overall Performance Judgments

Purpose  

The present study examined the effects of rater personality on the performance appraisal process. Specifically, we determined the relative weights that raters place on different performance dimensions when making overall performance evaluations, and examined whether rater personality influenced this weighting process. The literatures on social/political values and mate/friend selection were used as guiding frameworks in developing specific hypotheses.     

Medroxyprogesterone acetate impairs memory and alters the GABAergic system in aged surgically menopausal rats

In women, medroxyprogesterone acetate (MPA) is the most commonly used progestin component of hormone therapy (HT). In vitro, MPA negatively impacts markers of neuronal health and exacerbates experimentally-induced neurotoxicity. There is in vitro evidence that these factors are driven by GABAergic and neurotrophic systems. Whether these effects translate to a negative impact on brain function has not been tested in vivo, clinically or preclinically. Here we evaluate the mnemonic and neurobiological effects of MPA in the surgically menopausal rat. Aged ovariectomized (OVX) rats were given subcutaneous vehicle, natural progesterone, low-dose MPA or high-dose MPA. Multiple cognitive domains were analyzed via the water radial-arm maze (WRAM) and Morris maze (MM). Cognitive brain regions were assayed for changes in the GABAergic system by evaluating GAD protein, the synthesizing enzyme for GABA, and neurotrophins. On the WRAM, both progestin types impaired learning. Further, high-dose MPA impaired delayed memory retention on the WRAM, and exacerbated overnight forgetting on the MM. While neurotrophins were not affected by progesterone or MPA treatment, both progestin types altered GAD levels. MPA significantly and progesterone marginally decreased GAD levels in the hippocampus, and both MPA and progesterone significantly increased GAD levels in the entorhinal cortex. These findings suggest that MPA, the most commonly used progestin in HT, is detrimental to learning and two types of memory, and modulates the GABAergic system in cognitive brain regions, in aged surgically menopausal rats. These findings, combined with in vitro evidence that MPA is detrimental to neuronal health, indicates that MPA has negative effects for brain health and function.     

Unraveling the race paradox of achievement and self-views

Considerable evidence indicates that African American students achieve less academically than European American students. Yet, African American students hold more positive self-views than their European American counterparts. Previous studies that address these seemingly paradoxical findings focus on students in a relatively narrow age range and/or convenience samples. Therefore, the current study examines two common explanations for these seemingly paradoxical findings, among a large and diverse sample of African American and European American students (N = 1, 493) from elementary to post-secondary school and across the socioeconomic spectrum. Results indicate that among a diverse group of students and conceptualized in two different ways, African American students do not devalue academics. However, African American students are more likely than European American students to discount academic feedback.     

Prototype abstraction by monkeys (Macaca mulatta)

The authors analyze the shape categorization of rhesus monkeys (Macaca mulatta) and the role of prototype- and exemplar-based comparison processes in monkeys' category learning. Prototype and exemplar theories make contrasting predictions regarding performance on the Posner-Homa dot-distortion categorization task. Prototype theory--which presumes that participants refer to-be-categorized items to a representation near the category's center (the prototype)--predicts steep typicality gradients and large prototype-enhancement effects. Exemplar theory--which presumes that participants refer to-be-categorized items to memorized training exemplars-predicts flat typicality gradients and small prototype-enhancement effects. Across many categorization tasks that, for the first time, assayed monkeys' dot-distortion categorization, monkeys showed steep typicality gradients and large prototype-enhancement effects. These results suggest that monkeys--like humans--refer to-be-categorized items to a prototype-like representation near the category's center rather than to a set of memorized training exemplars.     

Framing Persuasive Appeals: Episodic and Thematic Framing, Emotional Response, and Policy Opinion

Those seeking to frame political issues to their advantage recognize the power of emotional appeals. Yet the study of framing has focused mainly on the cognitive effects of framing rather than on its emotional effects. This study presents the results of two experiments designed to explore the effect of episodic and thematic framing on emotional response and policy opinion. Participants were randomly assigned to read a column arguing against mandatory minimum sentencing that employed either a thematic or one of two episodic frames featuring a woman who received a harsh sentence under the policy. Episodic framing was more emotionally engaging. Furthermore, the specific emotions elicited by the episodic frame—sympathy and pity for the woman featured in the column—were associated with increased opposition to mandatory minimum sentencing. Yet the thematic frame was actually more persuasive once this indirect effect of frame on emotional response was taken into account. The results are consistent with the conclusion that framing effects on policy opinion operate through both affective and cognitive channels. The theoretical and practical implications of the study are discussed.     

Process demands of rejection mechanisms of recognition memory

A surge of research has been conducted to examine memory editing mechanisms that help distinguish accurate from inaccurate memories. In the present experiment, the authors examined the ability of participants to use novelty detection, recollection rejection, and plausibility judgments to reject lures presented on a recognition memory test. Participants studied a list of word pairs that were arranged in a category relationship (both words from the same category) or an unrelated relationship (both words from different categories) under full or divided attention. At test, participants were given a yes/no recognition test in which they were to respond after seeing the test items for 400 ms or 2,800 ms. Some of the test items were rearranged word pairs that were consistent with the study relationship, whereas others were inconsistent with the study relationship. The results demonstrate that the participants required full attention at study to use novelty detection, recollection rejection, and plausibility judgments to reject lures. Moreover, the results indicate that a long response deadline at test was needed for participants to use both recollection rejection and plausibility judgments to reject lures.     

Mapping the scale of the narcissism epidemic: Increases in narcissism 2002–2007 within ethnic groups

[Twenge, J. M., Konrath, S., Foster, J. D., Campbell, W. K., & Bushman, B. J. (2008a). Egos inflating over time: A cross-temporal meta-analysis of the Narcissistic Personality Inventory. Journal of Personality, 76, 875–901.] found that Narcissistic Personality Inventory (NPI) scores increased between 1982 and 2006 among college students nationwide, but [Trzesniewski, K. H., Donnellan, M. B., & Robins, R. W. (2008). Do today’s young people really think they are so extraordinary? An examination of secular changes in narcissism and self-enhancement. Psychological Science, 19, 181–188.] found that NPI scores remained unchanged over that time in samples from the University of California (UC) campuses. The increasing numbers of Asian-Americans at the UCs over time may have masked changes in narcissism, as Asian-Americans score lower on the NPI. When examined within ethnic groups, Trzesniewski et al.’s data show that NPI scores increased significantly between 2002 and 2007 at twice the rate of the yearly change found over 24 years in Twenge et al. (2008a). The overall means also show a significant increase 2002–2007. Thus the available evidence suggests that college students are endorsing progressively more narcissistic personality traits over the generations.     

Is Character Fate,or Is There Hope to Change My Personality Yet?

Different perspectives on personality development propose a range of possible degrees to which traits are free to change, from hardly at all to very much. This essay reviews the empirical evidence on just how consistent and changeable personality traits are across the life course. To gain a thorough perspective on personality trait development, we review developmental studies that focus on three different types of change: rank‐order consistency, mean level change, and individual level change. Starting in late childhood, personality traits exhibit modest levels of rank‐order consistency that increase with age. In addition personality traits show mean level changes, especially in young adulthood, that are consistent with the idea of increasing maturity. Finally, despite these general trends in personality continuity and change, there is evidence that individuals may change in ways that contradict general trends and that these individual differences in change are related to life experiences.     

Self-representation in social anxiety disorder: linguistic analysis of autobiographical narratives

Cognitive models of social anxiety disorder (SAD) posit aberrant beliefs about the social self as a key psychological mechanism that maintains fear of negative evaluation in social and performance situations. Consequently, a distorted self-view should be evident when recalling painful autobiographical social memories, as reflected in linguistic expression, negative self-beliefs, and emotion and avoidance. To test this hypothesis, 42 adults diagnosed with SAD and 27 non-psychiatric healthy controls (HC) composed autobiographical narratives of distinct social anxiety related situations, generated negative self-beliefs (NSB), and provided emotion and avoidance ratings. Although narratives were matched for initial emotional intensity and present vividness, linguistic analyses demonstrated that, compared to HC, SAD employed more self-referential, anxiety, and sensory words, and made fewer references to other people. There were no differences in the number of self-referential NSB identified by SAD and HC. Social anxiety symptom severity, however, was associated with greater self-referential NSB in SAD only. SAD reported greater current self-conscious emotions when recalling autobiographical social situations, and greater active avoidance of similar situations than did HC. These findings support cognitive models of SAD, and suggest that autobiographical memory of social situations in SAD may influence current and future thinking, emotion, and behavioral avoidance.     

Effects of language experience on the perception of American Sign Language

Perception of American Sign Language (ASL) handshape and place of articulation parameters was investigated in three groups of signers: deaf native signers, deaf non-native signers who acquired ASL between the ages of 10 and 18, and hearing non-native signers who acquired ASL as a second language between the ages of 10 and 26. Participants were asked to identify and discriminate dynamic synthetic signs on forced choice identification and similarity judgement tasks. No differences were found in identification performance, but there were effects of language experience on discrimination of the handshape stimuli. Participants were significantly less likely to discriminate handshape stimuli drawn from the region of the category prototype than stimuli that were peripheral to the category or that straddled a category boundary. This pattern was significant for both groups of deaf signers, but was more pronounced for the native signers. The hearing L2 signers exhibited a similar pattern of discrimination, but results did not reach significance. An effect of category structure on the discrimination of place of articulation stimuli was also found, but it did not interact with language background. We conclude that early experience with a signed language magnifies the influence of category prototypes on the perceptual processing of handshape primes, leading to differences in the distribution of attentional resources between native and non-native signers during language comprehension.