Learning new meanings for old words: effects of semantic relatedness

Changes to our everyday activities mean that adult language users need to learn new meanings for previously unambiguous words. For example, we need to learn that a "tweet" is not only the sound a bird makes, but also a short message on a social networking site. In these experiments, adult participants learned new fictional meanings for words with a single dominant meaning (e.g., "ant") by reading paragraphs that described these novel meanings. Explicit recall of these meanings was significantly better when there was a strong semantic relationship between the novel meaning and the existing meaning. This relatedness effect emerged after relatively brief exposure to the meanings (Experiment 1), but it persisted when training was extended across 7?days (Experiment 2) and when semantically demanding tasks were used during this extended training (Experiment 3). A lexical decision task was used to assess the impact of learning on online recognition. In Experiment 3, participants responded more quickly to words whose new meaning was semantically related than to those with an unrelated meaning. This result is consistent with earlier studies showing an effect of meaning relatedness on lexical decision, and it indicates that these newly acquired meanings become integrated with participants' preexisting knowledge about the meanings of words.     

Research productivity and scholarly impact of APA-accredited school psychology programs: 2005-2009

This study examined the research productivity and scholarly impact of faculty in APA-accredited school psychology programs using data in the PsycINFO database from 2005 to 2009. We ranked doctoral programs on the basis of authorship credit, number of publications, and number of citations. In addition, we examined the primary publication outlets of school psychology program faculties and the major themes of research during this time period. We compared our results with those of a similar study that examined data from a decade earlier. Limitations and implications of this study are also discussed.     

Passion, craving, and affect in online gaming: Predicting how gamers feel when playing and when prevented from playing

According to the Dualistic Model of Passion, two forms of passion can motivate a behavior: harmonious passion and obsessive passion. Across various life activities, studies have found that the two forms of passion show different relationships with affect, linking harmonious passion to positive affect and obsessive passion to negative affect. To investigate if this pattern also holds for online gaming, the present study investigated 160 gamers involved in playing massively multiplayer online role-playing games (MMOs) and examined positive and negative affect (a) when playing and (b) when prevented from playing. In addition, the effects of general affect and craving for playing MMOs were controlled for. Results were as expected from the Dualistic Model of Passion: harmonious passion for online gaming predicted positive affect when playing whereas obsessive passion predicted negative affect when playing and when prevented from playing. Moreover, these effects remained unchanged when general affect and craving were controlled for. With this, the present research shows that individual differences in passion for online gaming explain unique variance in gaming-related emotions. Moreover, the present findings suggests that craving is a variable that future research on positive and negative affect in online gaming should pay closer attention to.     

Intrinsic motivations and the non-profit health sector: Evidence from Ethiopia

Economists have traditionally assumed that individual behavior is motivated exclusively by extrinsic incentives. Social psychologists, in contrast, stress that intrinsic motivations are also important. In recent work, economic theorists have started to build psychological factors, like intrinsic motivations, into their models. Besley and Ghatak (2005) propose that individuals are differently motivated in that they have different “missions”, and their selection into sectors or organizations with matching missions enhances organizational efficiency. We test Besley and Ghatak’s model using data from a unique cohort study. We generated two proxies for intrinsic motivations: a survey-based measure of the health professionals philanthropic motivations and an experimental measure of their pro-social motivations. We find that both proxies predict health professionals’ decision to work in the non-profit sector. We also find that philanthropic health workers employed in the non-profit sector earn lower wages than their colleagues.     

Realism and Political Normativity

Ethical Theory and Moral Practice - A prevailing understanding of realism, chiefly among its critics, casts realists as those who seek a ‘distinctively political normativity’, where...     

Traction without Tracing: A (Partial) Solution for Control‐Based Accounts of Moral Responsibility

Control‐based accounts of moral responsibility face a familiar problem. There are some actions which look like obvious cases of responsibility but which appear equally obviously to lack the requisite control. Drunk‐driving cases are canonical instances. The familiar solution to this problem is to appeal to tracing. Though the drunk driver isn't in control at the time of the crash, this is because he previously drank to excess, an action over which he did plausibly exercise the requisite control. Tracing seeks to show that an agent's responsibility for some outcome (over which he lacked control) can be traced back to a prior exercise of control which caused (in the right way) the later lack of control. These and related cases have led many theorists to treat tracing as an indispensable component of any adequate theory of responsibility. This paper argues that tracing is in fact dispensable. I offer two strategies for explaining responsibility in drunk‐driving cases (and those with a similar structure): responsibility can either be exhaustively modeled on recklessness, or exhaustively modeled on negligence. Neither explanation, however, relies on tracing. If I'm right, the case for tracing is seriously weakened.     

Vicarious Peer Victimization and Adolescent Violence: Unpacking the Effects of Social Learning,General Strain,and Peer Group Selection

This study examines how the victimization of a close friend, or vicarious peer victimization, affects adolescent violence. Competing processes linking vicarious peer victimization and violence are empirically evaluated including social learning theory, general stain theory, and peer group selection models. The analyses use peer-network data from three waves of the National Longitudinal Study of Adolescent Health (Add Health). Regression models demonstrate that the association between vicarious peer victimization and violence is attributed primarily to peer-group selection and social learning mechanisms. These findings indicate that victimization affects not only the immediate victims of violence, but permeates throughout adolescent social networks.     

No evidence of racial discrimination in criminal justice processing: Results from the National Longitudinal Study of Adolescent Health

One of the most consistent findings in the criminological literature is that African American males are arrested, convicted, and incarcerated at rates that far exceed those of any other racial or ethnic group. This racial disparity is frequently interpreted as evidence that the criminal justice system is racist and biased against African American males. Much of the existing literature purportedly supporting this interpretation, however, fails to estimate properly specified statistical models that control for a range of individual-level factors. The current study was designed to address this shortcoming by analyzing a sample of African American and White males drawn from the National Longitudinal Study of Adolescent Health (Add Health). Analysis of these data revealed that African American males are significantly more likely to be arrested and incarcerated when compared to White males. This racial disparity, however, was completely accounted for after including covariates for self-reported lifetime violence and IQ. Implications of this study are discussed and avenues for future research are offered.