Does matter really matter? Computer simulations,experiments, and materiality

A number of recent discussions comparing computer simulation and traditional experimentation have focused on the significance of “materiality.” I challenge several claims emerging from this work and suggest that computer simulation studies are material experiments in a straightforward sense. After discussing some of the implications of this material status for the epistemology of computer simulation, I consider the extent to which materiality (in a particular sense) is important when it comes to making justified inferences about target systems on the basis of experimental results.     

Meta-analysis of work–family conflict mean differences: Does national context matter?

Work–family conflict continues to be a topic of considerable interest to researchers and practitioners across the globe. In the current study, meta-analysis is used to compare cross-national mean differences in work-to-family conflict and family-to-work conflict across cultural, institutional, and economic aspects of context. No significant differences in work-to-family conflict were detected. Reports of family-to-work conflict were higher in more collectivistic versus more individualistic cultures, in countries with a higher versus a lower economic gender gap, and in countries other than the U.S. versus the U.S.     

Does the walking task matter? Influence of different walking conditions on dual-task performances in young and older persons

Previous literature suggests that age-related deficits of dual-task walking are particularly pronounced with second tasks that require continuous visual processing. Here we evaluate whether the difficulty of the walking task matters as well. To this end, participants were asked to walk along a straight pathway of 20 m length in four different walking conditions: (a) wide path and preferred pace; (b) narrow path and preferred pace, (c) wide path and fast pace, (d) obstacled wide path and preferred pace. Each condition was performed concurrently with a task requiring visual processing or fine motor control, and all tasks were also performed alone which allowed us to calculate the dual-task costs (DTC). Results showed that the age-related increase of DTC is substantially larger with the visually demanding than with the motor-demanding task, more so when walking on a narrow or obstacled path. We attribute these observations to the fact that visual scanning of the environment becomes more crucial when walking in difficult terrains: the higher visual demand of those conditions accentuates the age-related deficits in coordinating them with a visual non-walking task.     

Does spirituality really matter?: A study on the potential of spirituality for older adult's adjustment to aging

This study intended to analyze the indicators of adjustment to aging (AtA) and to investigate the latent constructs that can work as major determinants in spirituality for a cross‐national older community‐dwelling population. Questionnaires were completed to assess the participants' background information. Interviews were performed, addressing one core area: indicators of AtA. Complete data were available for 154 older adults from two nationalities (German and Portuguese), aged between 75 and 103 years (M = 86.6; SD = 6.98). The data were subjected to content analysis. Representations of the associations and latent constructs were analyzed using a multiple correspondence analysis (MCA). The most prevalent response of the interviewed participants for indicators of AtA was spirituality (43.2%). Spiritual activities was the most reported response regarding spirituality (20.0%). A significant moderate association was found between spiritual activities and nationality (V = .365; p < .001). Spirituality for older adults was explained by a three‐dimensional overall model: spiritual and existential meaning, limit‐related awareness and community embeddedness. The findings presented in this paper emphasized the need to explore the potential of spirituality for AtA and the need for improving the spiritual dimension of health care for the older cross‐national population.     

Sex differences in the association of math achievement with visual-spatial and verbal working memory: Does the type of math test matter?

Previous research on sex differences in mathematical achievement shows mixed findings, which have been argued to depend on types of math tests used and the type of solution strategies (i.e., verbal versus visual-spatial) these tests evoke. The current study evaluated sex differences in (a) performance (development) on two types of math tests in primary schools and (b) the predictive value of verbal and visual-spatial working memory on math achievement. Children (N = 3175) from grades 2 through five participated. Visual-spatial and verbal working memory were assessed using online computerized tasks. Math performance was assessed five times during two school years using a speeded arithmetic test (math fluency) and a word problem test (math problem solving). Results from Multilevel Multigroup Latent Growth Modeling, showed that sex differences in level and growth of math performance were mixed and very small. Sex differences in the predictive value of verbal and visual-spatial working memory for math performance suggested that boys seemed to rely more on verbal strategies than girls. Explanations focus on cognitive and emotional factors and how these may interact to possibly amplify sex differences as children grow older.     

Does content matter? The effect of remorseful tone on length of prison sentence

The expression of remorse by offenders has been found to affect jurors' determination of length of prison sentences. This study explores this phenomenon by contrasting the impact of exercising remorse solely in words or through emotional tone. Remorse consists of guilt, shame and sorrow. This study examines the contribution of each of these emotions to judgements about prison sentences, which is an area seldom explored in the literature. It is shown that regardless of the gender of the offender, participants censured a significantly more severe punishment for the offender who expressed a sense of remorse using words rather than tone. In addition, only shame was a significant predictor of the severity of punishment. These findings are consistent with previous studies and further differentiate the influence of displaying remorse at the content and tonal levels.     

Does whom you work with matter? Effects of referent group gender and age composition on managers' compensation

Much research has examined gender and age effects on compensation, concluding that a wage gap exists favoring men and negative stereotypes against older workers persist. Although the effect of an employee's gender or age has been widely studied, little work has examined the impact of the demographic characteristics of a focal employee's immediate referent groups (e.g., subordinates, peers, or supervisors) on pay. The effect of the gender and age composition of a focal manager's subordinates, peers, and supervisor on the manager's compensation levels was investigated in a sample of 2,178 managers across a wide range of organizations and functional areas. After controlling for a number of human capital variables, results indicated that not only does a wage gap favoring men exist, but also managerial pay is lower when managers' referent groups are largely female, when subordinates are outside the prime age group, and when peers and supervisors are younger.     

The effect of an extinction cue on ABA-renewal: Does valence matter?

The present human fear conditioning study examined whether the valence of an extinction cue has a differential effect on attenuating renewal that is induced by removal of the extinction context. Additionally, the study aimed to assess whether such attenuating effect is based on a modulatory or safety-signal role of the cue. In acquisition, extinction, and test stages of the experiment, human participants received pairings of human faces, presented against a particular background color, with the presence or absence of an aversive auditory stimulus. Experimental groups differed in the valence of a cue that was presented during extinction, in whether or not extinction took place against a different background color than present during acquisition and testing, and in whether the extinction cue was present or absent at test. The conditioned response consisted of auditory-stimulus expectancy ratings. It was hypothesized that a positively valued extinction cue yields faster extinction, stronger attenuation of renewal, and better transfer of its inhibitory power to non-extinguished stimuli than a negatively valued cue. All three hypotheses were confirmed, suggesting that the positive, but not the negative, cue had become a safety signal. The results were discussed in the framework of extinction-based exposure treatments.     

Does nationality matter? The impact of stereotypical expectations on student teachers’ judgments

In Germany, Turkish students are overrepresented on lowest school tracks. Research has provided evidence that stereotypical expectations can color judgments. We experimentally investigated whether student information that strongly confirmed or disconfirmed Turkish stereotypical expectations led to student teachers’ judgments that were biased against nationality. Furthermore, we explored whether judging an expectation-confirming or expectation-disconfirming Turkish student resulted in changes in stereotypical beliefs. Results showed that student teachers’ judgments were biased against nationality when it came to an expectation-confirming student and that the expectation-disconfirming student could change stereotypical beliefs into slightly more positive ones. Results are discussed with regard to their theoretical relevance as well as to their importance for teacher education.     

Does ethnicity matter? The impact of stereotypical expectations on in-service teachers’ judgments of students

Ethnic minority students face many disadvantages in school, which might be due in part to teachers’ stereotypical expectations and attitudes. Dual process theories of impression and judgment formation specify person information that confirms or disconfirms stereotypical expectations as determinants of how judgments are formed. While expectation-confirming information should result in stereotype-based judgments, expectation-disconfirming information should lead to more information-integrating processes. Moreover, attitudes should also be affected in a positive way when a person encounters expectation-disconfirming information. The current study experimentally investigated these hypotheses with regard to stereotypical expectations about ethnic minority students. Eighty-three experienced teachers were randomly divided into four different groups. One group judged a below-average ethnic minority student (confirming) and another group a below-average ethnic majority student. Two other groups judged either an above-average ethnic minority (disconfirming) or ethnic majority student. When assessing a below-average student, teachers judged the confirming ethnic minority student as less proficient in language than the ethnic majority student. These differences could not be found for mathematical achievement or between the above-average ethnic minority and majority students. Attitudes toward ethnic minority students were not affected in the expected way. Findings are discussed with respect to their implications for future research.     

Mother-Teacher Agreement on Preschoolers’ Symptoms of ODD and CD: Does Context matter?

The aims of this study were to examine mother-teacher agreement on oppositional defiant disorder (ODD) and conduct disorder (CD) symptoms and diagnoses in preschool children; to determine if context is a source of disagreement; and to explore if sex, referral status, and age moderated agreement rates. Participants included 158 male and 139 female 3- to 5-year old preschool children, their mothers, and teachers. A structured interview, the Kiddie-Disruptive Behavior Disorder Schedule was used for maternal report and teachers completed the Early Childhood Inventory. Results indicated that mothers reported more symptoms and diagnoses of ODD and CD than teachers, and mother-teacher agreement on both ODD and CD symptoms and diagnoses was low. Level of mother-teacher agreement increased when reporting on behavior in the same context; however, the rates remain modest. Referral status increased the likelihood of mother and teacher agreement on several ODD and CD symptoms, as well as ODD and CD diagnosis. These data suggest that context plays a role in mother-teacher agreement in the assessment of young children's ODD and CD symptoms.     

Does it really matter whether students' contributions are spoken versus typed in an intelligent tutoring system with natural language?

There is the question of whether learning differs when students speak versus type their responses when interacting with intelligent tutoring systems with natural language dialogues. Theoretical bases exist for three contrasting hypotheses. The speech facilitation hypothesis predicts that spoken input will increase learning, whereas the text facilitation hypothesis predicts typed input will be superior. The modality equivalence hypothesis claims that learning gains will be equivalent. Previous experiments that tested these hypotheses were confounded by automated speech recognition systems with substantial error rates that were detected by learners. We addressed this concern in two experiments via a Wizard of Oz procedure, where a human intercepted the learner's speech and transcribed the utterances before submitting them to the tutor. The overall pattern of the results supported the following conclusions: (1) learning gains associated with spoken and typed input were on par and quantitatively higher than a no-intervention control, (2) participants' evaluations of the session were not influenced by modality, and (3) there were no modality effects associated with differences in prior knowledge and typing proficiency. Although the results generally support the modality equivalence hypothesis, highly motivated learners reported lower cognitive load and demonstrated increased learning when typing compared with speaking. We discuss the implications of our findings for intelligent tutoring systems that can support typed and spoken input.     

Does valence matter? Effects of negativity on children’s early understanding of the truth and lies

Early deceptive behavior often involves acts of wrongdoings on the part of children. As a result, it has often been assumed, although not tested directly, that children are better at identifying lies about wrongdoing than lies about other activities. We tested this assumption in two studies. In Study 1, 67 3- to 5-year-olds viewed vignettes in which a character truthfully or falsely claimed to have committed a good or bad act. Children were biased to label claims that the character had committed a good act as the truth and claims that the character had committed a bad act as lies. In Study 2, 51 4- to 6-year-olds viewed vignettes in which characters either admitted or denied committing a good or bad act. Children were better at identifying truth-tellers and liars when the acts were good. Results suggest that young children initially overgeneralize the concept of lie to include all negative acts and the concept of the truth to include all good acts and only gradually make a distinction between act valence and honesty. As a result, including wrongdoing in scenarios to test children's early understanding of the meaning of lying is likely to underestimate children's abilities.     

Does the distance between us matter? Influences of physical proximity to others on consumer choice

Individuals’ physical closeness to one another can either increase or decrease their preference for distinctive products. When individuals perceive their proximity to others to be voluntary, they are likely to interpret it as an indication of their affiliation motivation. Consequently, in a product choice task, they choose options that others consider desirable. When people perceive that their close proximity to others results from circumstances beyond their control, however, they feel that their personal space is violated and experience a need for to express their individuality. In this case, they are more likely to choose products that distinguish themselves from others.     

Does parental support moderate the effect of children's motivation and self-efficacy on physical activity and sedentary behaviour?

Objectives1) To test whether parental support moderates the direct effects of children's motivation and self-efficacy on objectively measured moderate-vigorous physical activity (MVPA) and sedentary time. 2) To explore differences in the relationships between boys and girls.DesignCross-sectional observational study.MethodData were collected from 430 9–11 year old UK children and their parents; parents self-reported on the support they provided to their children to be active (through providing transport, encouragement, watching, or taking part with their child), and children self-reported their motivation and self-efficacy towards exercise. MVPA and sedentary time were measured using accelerometers.ResultsBoth parent- and child-level factors were largely positively associated with children's MVPA and negatively related to sedentary time. There was no evidence of a moderation effect of parental support on MVPA or sedentary time in boys. Parental provision of transport moderated the effect of girls' motivation on week-day MVPA; more motivated girls were less active when transport was provided. Transport and exercising with one's child moderated the effect of motivation and self-efficacy on girls' sedentary time at weekends; more motivated girls, and those with higher self-efficacy were less sedentary when parents provided more frequent transportation or took part in physical activity with them.ConclusionsThe results largely supported a model of the independent effects of parent and child determinants for moderate-to-vigorous physical activity, but there was evidence that some types of parent support can moderate sedentary time in girls. Further research is needed to explore the causal pathways between the observed cross-sectional results.     

Does aversive behavior during toddlerhood matter? The effects of difficult temperament on maternal perceptions and behavior

Seventy‐three mothers and their toddlers were observed when the children were 18 and 24 months of age in a series of laboratory procedures designed to assess relations among frustration distress, aggression/venting, and defiance, as indicators of aversive behavior, and their relations to maternal interactive style concurrently and over time. A second goal was to identify the predictors of aversive behavior at 24 months of age. Child aversive behavior as a predictor of increases in maternal negativity over time was also examined. Results indicated that distress, venting, and defiance were related to one another at 18 months of age. For boys, venting at 24 months of age, but not distress or defiance, was associated with greater maternal report of stress and higher incidence of behavior problems at 24 months of age. Venting behavior at 24 months of age was predicted by the interaction of early aversive behavior and low maternal positive guiding behavior. Increases in maternal negative behavior over the six‐month period were predicted by the interaction of earlier negative maternal behavior and child sex, with negative mothers of boys displaying greater increases in negative behavior at the later age. These findings are discussed in terms of the significance of early aversive behavior, in the context of mother–child interaction, for later problematic behavior. ©2002 Michigan Association for Infant Mental Health.     

Does the effect of familiarity on proofreading change with encoding task and time?

The authors examined whether the beneficial effect of text familiarity on proofreading is dependent on the type of encoding operations performed on the text prior to proofreading (i.e., surface vs. deep), and on the time elapsed between encoding and proofreading. In the present study, familiarity, irrespective of the nature of the encoding operations and delay, improved proofreading times, whereas only surface encoding made proofreading more accurate. These results represent a challenge for the transfer-appropriate processing model of memory.     

Does young adults’ preferred role in decision making about health,money, and career depend on their advisors’ leadership skills?

Few empirical data exist on how decision making about health differs from that in other crucial life domains with less threatening consequences. To shed light on this issue we conducted a study with 175 young adults (average age 19 years). We presented the participants with scenarios involving advisors who provided assistance in making decisions about health, money, and career. For each scenario, participants were asked to what extent they wanted the advisor to exhibit several leadership styles and competencies and what role (active, collaborative, or passive) they preferred to play when making decisions. Results show that decision making about health is distinct from that in the other domains in three ways. First, most of the participants preferred to delegate decision making about their health to their physician, whereas they were willing to collaborate or play an active role in decision making about their career or money. Second, the competencies and leadership style preferred for the physician differed substantially from those desired for advisors in the other two domains: Participants expected physicians to show more transformational leadership—the style that is most effective in a wide range of environments—than those who provide advice about financial investments or career. Finally, participants’ willingness to share medical decision making with their physician was tied to how strongly they preferred that the physician shows an effective leadership style. In contrast, motivation to participate in decision making in the other domains was not related to preferences regarding advisors’ leadership style or competencies. Our results have implications for medical practice as they suggest that physicians are expected to have superior leadership skills compared to those who provide assistance in other important areas of life.