Cultural influences on preference consistency: Consistency at the individual and collective levels

Previous research has shown that there are cultural differences in self-concept consistency across situations. However, little is known about cultural differences in preference consistency over time. The present research examined whether Americans are more consistent in their preferences over time than are Japanese. As hypothesized, there were cultural differences in self-reported ( and ) and actual ( and ) preference consistency over time. Further, cultural differences in preference consistency at the individual level (Study 1) were found to aggregate into collective level differences ( and ) in the consistency of preference trends, such as the popularity of baby names. Implications and future directions are discussed.     

What cognitive and numerical skills best define learning disabilities in mathematics? / ¿Qué habilidades cognitivas y numéricas definen mejor las dificultades de aprendizaje en matemáticas?

Differentiating students with mathematical learning disabilities (MLD) from those with low achievement (LA) is still an unresolved issue. This study explored whether the specific combination of certain cognitive and numerical skills can classify students with MLD, with LA, and without MLD. In order to do this, an analysis was carried out of the performance of 756 Spanish students in grades two to six, on different numerical and cognitive tasks. Two factors were extracted using a principal component analysis of the tasks: a semantic-cognitive factor and a verbal-automation factor. The results obtained from comparing the groups showed that students with MLD and LA demonstrated significant differences in the semantic-cognitive factor, and that these differences were consistent across grade levels. In contrast, there were no differences between groups in the automatic-verbal factor. These results confirm that the groups are not only quantitatively different but also qualitatively different.     

Longitudinal consistency of adolescent ethnic identification across varying school ethnic contexts

The present study examined consistency and inconsistency in adolescents' ethnic identification (i.e., self-reported ethnicity) across the 6 middle-school semesters. The sample (N = 1,589, of whom 46% were boys and 54% were girls) included African American, Asian/Pacific Islander, Caucasian/White, Latino/Latina, Mexican/Mexican American, and multiethnic students. Latent class analyses yielded 3 key patterns in ethnic identification across the middle-school years: consistent, late consistent, and inconsistent. Ethnic identification remained consistent across fall and spring of 6th, 7th, and 8th grades for only about 60% of the students. Asian/Pacific Islander students were more consistent, and multiethnic students were less consistent than students from other ethnic groups. School ethnic composition was associated with systematic shifts in ethnic identification from the beginning to the end of middle school for those students who initially identified as Latino/Latina, African American, or multiethnic but not for Mexican-origin students. In combination, the results provide insight into the consistency of ethnic identification, the role of context in adolescents' self-representation, and considerations for longitudinal studies that examine ethnic differences.     

Validity Stability Across Entering College Cohorts: Exploring the temporal generalizability of local validity estimates

Local validity studies rely on the assumption that validity estimates from one incumbent sample approximate validity for future applicant pools. We test this assumption using SAT scores and high school grades as predictors of first year college grade point average across multiple college applicant pools for over 100 schools. We present evidence for substantial absolute and rank order consistency in validity estimates. However, this consistency is far less than perfect, resulting in potentially meaningful utility differences over time. In addition, observed fluctuations are not fully explained by sampling error alone.     

Consistencies in sex differences on the Cognitive Abilities Test across countries,grades, test forms,and cohorts

Background Strand, Deary, and Smith (2006) reported an analysis of sex differences on the Cognitive Abilities Test (CAT) for over 320,000 UK students 11–12 years old. Although mean differences were small, males were overrepresented at the upper and lower extremes of the score distributions on the quantitative and non‐verbal batteries and at the lower extreme of the verbal battery. Aims We investigate whether these results were unique to the UK or whether they would be seen in other countries, at other grades, cohorts, or forms of the test. Sample The sample consisted of three nationally representative cohorts of US students in grades 3 through 11 (total N = 318,599) for the 1984, 1992, and 2000 standardizations of the US version of the CAT. Methods We replicated and extended the Strand et al. (2006) results by comparing the proportions of males and females at each score level across countries (UK vs. US), grades (3–11), and cohorts/test forms (Forms 4, 5, and 6 standardized in 1984, 1992, and 2000, respectively). Results The results showed an astonishing consistency in sex differences across countries, grades, cohorts, and test forms. Conclusions Implications for the current debate about sex differences in quantitative reasoning abilities are discussed.     

Short-term memory for a pure-tone stimulus among mentally retarded and nonretarded persons

Two studies were conducted to determine whether short-term memory performance differences between mentally retarded and nonretarded persons can be attrubuted to the operation of structural features, as contrasted with strategic control processes. The task—discrimination of intensity differences between two pure tones—was selected as one which would minimize specific strategy utilization. In the first experiment normal children, normal adults, and retarded adults were presented with a standard tone and then a comparison tone after an interval of 1, 5 or 10s. Difference limens and constant errors were computed over a substantial number of trials. Measures of intra-individual variability were also obtained. Clear age and IQ-related threshold differences were obtained. Difference thresholds increased over intervals for all groups. However, the critical interaction that would support a theory of differential decay of the memory trace was not obtained. A second experiment, procedurally similar to the first, was conducted using signal detection methodology. The major findings were: (a) groups differed in sensitivity (d′); (b) d′ decreased with increasing separation of standard and comparison tones; (c) d′ increased as the intensity differences between standard and comparison tones increased; and (d) retarded subjects did not alter response bias to changing task requirements Again, however, the interaction of groups and retention interval was not significant. Intelligence and age-related differences in the task occur early in the information processing sequence and appear to be of a perceptual nature.     

Seeing into the Future: Future Time Orientation as a Moderator of Temporal Distance Effects on Educators' Decisions

Research suggests that the temporal distance from decision outcomes leads to divergent decisions for the near and the distal future. As such, high‐level idealistic concerns and values dominate decisions for the distant future, whereas low‐level pragmatic concerns play a greater role in decisions for the near future. We examined how individual differences in future time orientation are related to decisions vis‐à‐vis the near versus the distal future. The results of three studies, with participants with varying levels of expertise—students (Studies 2 and 3), teachers (Study 1), and school principals (Study 2)—show that principals tend to be overall more idealistic in their choices. Yet discrepancies between decisions for the near versus the distal future exist among all three levels of expertise. However, this dominance of idealistic over pragmatic concerns for more distant future decisions effect was smaller the higher the future time orientation was (whether measured or manipulated). Implications for educational and managerial decision making and training are discussed. Copyright © 2017 John Wiley & Sons, Ltd.     

The Project Method of Teaching Psychology: A Rejoinder to Dr. Cason

Unlike word frequency counts—e.g., Thorndike and Lorge—or nonsense syllable norms, the total number of different words scaled in extant norms with free associations is limited, although some words were repeatedly scaled. In order to remedy this situation and broaden the word pool for future research, a new norm for 48 words was obtained by means of free associations in the present study (N = 58 men and women undergraduate students in psychology). Discrete normative free associations were procured for 10 words for the first time by the current norm. For the words previously scaled, whereas there were some noticeable differences, overall substantial consistency was observed between the present and earlier results. Further, a survey of previously available word association norms disclosed useful information and interesting trends in this field.     

书写字体的性别差异研究

从珠海市中小学一年级至初中三年级随机选出５４０名学生,要求他们每个人抄一段４００字左右的短文,收回抄写卷５４０份。４０名有经验的教师,对书写者的性别做出判断,并回答一份关于判断男女笔迹的依据的问卷。结果表明：１．小学低年级男女生的字体没有明显的性别差异,到中高年级以后,性别差异才明显地表现出来。二、三年级之间,五、六年级之间是差异形成的两个加速期。２．判断者对小学低年级书写者的性别的判断不准确,主要是由于将女生的字体误判为男生的字体而造成的。３．男女生字体的差异主要表现在五个方面,即字体大小程度,字的力度、字体的刚劲度、字的工整度和字的棱角度。     

Perceived past, present, and future control and adjustment to stressful life events

Perceived control is a central construct in psychology and is key to understanding individual differences in poststress outcomes (Frazier, Berman, & Steward, 2001). The goals of the current studies (using 4 samples of undergraduate students, total N = 1,421) were to examine the relations between different aspects of perceived control and poststress outcomes and to differentiate perceived control over specific events from related constructs (i.e., general control beliefs, coping strategies). To accomplish these goals, we first developed a new measure of perceived past, present, and future control over stressful life events. The data supported the content validity, factor structure, internal consistency and test-retest reliability, and convergent and discriminant validity of the new measure. Consistent with the temporal model of control (Frazier et al., 2001), these 3 forms of control had very different relations with adjustment. Present control was consistently related to lower distress levels in cross-sectional, longitudinal, and prospective analyses. Present control also predicted outcomes beyond the effects of general control beliefs and coping strategies. Past and future control had nonsignificant or positive relations with distress, although future control was associated with better outcomes (i.e., course grades) when the stressor was controllable. Thus, our measure can be used to assess the relations between perceived past, present, and future control and outcomes across a range of stressors. Because the relations between these 3 forms of control and outcomes differ markedly, measures that combine these aspects of control hinder the understanding of the important role of perceived control in adjustment to stress.     

Women Engineering Students: Competence Perceptions and Achievement Goals in the Freshman Engineering Course

Research suggests that women engineering students in the United States typically have lower competence perceptions than their male classmates. According to achievement goal theory, low competence perceptions are associated with avoidance achievement goals which involve a preoccupation with avoiding failure rather than a focus on approaching success. The current study was conducted to see if women in a freshmen engineering course would rate their competence lower than their male classmates and if they would be more likely to adopt avoidance achievement goals. Further, would lower competence perceptions (i.e., perceived ability, self-efficacy) and avoidance goals have negative effects on grades and interest in the freshman engineering course? A sample of 117 first-semester engineering students from a U.S. Midwestern University completed surveys several times during the semester. Data were also collected from a sample of 82 first-semester students enrolled in an introductory psychology course for comparison purposes. Women in the freshman engineering course reported lower competence perceptions and higher levels of avoidance achievement goals than did men in the engineering course and than men and women in the psychology course. However, there were no significant gender differences in course grades or interest in the engineering course. Further analyses revealed indirect effects of gender on grades and interest in the engineering course through the competence perceptions. The indirect effects were negative suggesting lower values for women in engineering. The avoidance achievement goals were not influential in the indirect effects. The implications of these finding for the persistence of women in engineering are discussed.     

Academic optimistic bias: Implications for college student performance and well-being

Although optimism has several benefits, there are potential drawbacks associated with “too much of a good thing”. Within an academic context, a possible determinant of the adaptiveness of optimistic bias is whether students have a sense of control over academic outcomes: optimistically-biased (OB) achievement expectations paired with perceptions of academic control may enhance performance and well-being; optimistic bias in the absence of perceived control may result in disappointment, poor performance, and diminished well-being. The current longitudinal study examined academic control cognitions (ACC) among OB college students (n = 319) versus non-optimistically biased (non-OB) students (n = 321). We also examined the effects of academic optimistic bias on composite measures of college performance (perceived success, final psychology course grades, cumulative GPA, course attrition) and well-being (positive and negative emotions, health behaviors, future optimism) 6 months later; and determined whether ACC accounted for those associations. Significant MANCOVAs showed OB students had greater ACC, better subsequent well-being, and outperformed their non-OB counterparts. These well-being and performance differences remained significant after statistically accounting for initial aptitude and ACC. Overall, academic optimistic bias was accompanied by perceived controllability over scholastic outcomes, yet beyond the effects of ACC, optimistic bias was associated with better year-end performance and well-being. Findings have implications for maximizing the successful transition of first-year college students.     

Perceived persuasiveness as a function of response style: Multi-issue consistency over time

This experiment studied the effect of an individual's response style on different issues over a long period of time. A hypothetical situation depicted the repeated responses given by one person on a target issue and on four other issues for one year. The 2 × 2 × 2 factorial design varied consistency of the stimulus person's position on the target issue during the year (consistent or variable); his consistency on other issues during the year (consistent or variable); and social context (alone or dissenting group). Subjects were 155 college students. Results showed an interaction between consistency on the target issue and consistency on other issues for the three dependent measures (p < .001). That is, significantly greater persuasiveness, confidence, and dis-positional causality were attributed to stimulus persons whose opinions were either completely consistent or completely variable on all issues during the year. Results suggest that the consistency of response style across issues—and not the constant advocacy of a specific position–is the crucial factor in the effectiveness of a long-term minority influence.     

Of beasties and butterflies: Evidence for the stability and domain-specificity of individual differences in categorization

Previous research has failed to demonstrate unambiguously the relative stability across time and consistency across tasks of individual differences in categorization, or categorization breadth The present study of categorizing behavior in college students assesses breadth at each of four points in time over a six-week period Results are consistent with an interpretation of breadth as a highly stable individual difference variable, but one that is constrained by the nature of the stimulus sets employed High stability coefficients were observed for each of two redundant tasks In contrast, cross-task consistency indices were generally low Personality correlates of breadth were similarly weak and inconsistent Several variables are suggested that may attenuate the generality of categorization breadth The existence of multiple styles of categorization is discussed     

Is doing your homework associated with becoming more conscientious?

Research has shown that sustained homework effort enhances academic performance and that students’ conscientiousness is a powerful predictor of students’ homework effort. But does homework—as homework proponents claim—in turn also influence the development of conscientiousness over time? In the present study, we examined whether students’ homework effort in two subjects (i.e., mathematics and German) was associated with inter-individual differences in students’ development of conscientiousness in the early years of adolescence. Bivariate change models with a total of N = 2760 students revealed that homework effort and conscientiousness were systematically related over time (Grade 5 to Grade 8). Most importantly, students who invested more effort in their homework showed more positive development in conscientiousness.     

Classroom ecology: relations between seating location, performance, and attendance

Data from 70 classes and 1829 students over a period of 15 years were analyzed. Grade and attendance differences were analyzed for five different seating configurations: by row, by column, the front of the room versus the back of the room, the center of the room versus the perimeter of the room, and the middle of the room versus the sides of the room. Results utilizing numeric percentage grades and attendance percentages indicated students sitting in the more central parts of the class had higher percentage grades and attended classes more frequently than those students sitting in the less central parts of the class. Women attended class more frequently than men, yet there were no sex differences on grades.     

Inter- and intra-individual variability in the kinematics of the back squat

The purpose of this study was to explore the level of inter- and intra-individual variability in the kinematic profiles of the back squat movement among skilled weightlifters. Ten competitive weightlifters volunteered for participation in this study. Barbell velocity (V_Barbell) and angular velocity of the ankle (ω_Ankle), knee (ω_Knee) and hip joint (ω_Hip) were obtained by kinematic recording of six trials at 90% of 1RM in the back squat. Inter-individual variability was assessed by analysing inter-individual differences in the velocity curves through the statistical parametric mapping method. Intra-individual variability was assessed through a correlation analysis between the barbell velocity curves of each trial for each participant. Partial least squares regression analysis, was performed to relate changes in intra-individual variability to movement and anthropometric characteristics. Significant inter- and intra-individual differences were identified in V_Barbell, ω_Ankle, ω_Knee, and ω_Hip (p ≤ 0.05). Having a short trunk and thigh, and a long shin in combination with greater anterior-posterior displacement of the barbell and slower velocities during the acceleration phase increased intra-individual movement consistency over movement variability. The results of the present study clearly demonstrate that skilled weightlifters display both significant inter- and intra-individual variability in the successful execution of the back squat.     

Contemporary longitudinal methods for the study of trauma and posttraumatic stress disorder

Traditional methods for analyzing trends in longitudinal data have typically emphasized average group change over time. In this article, we propose multilevel, regression-based methods for examining inter-individual differences in intra-individual change and apply these methods to research in trauma and posttraumatic stress disorder (PTSD). The outcome or dependent variable of interest is reconceptualized as an index of dynamic change reflecting the trend or trajectory of an individual's PTSD symptom severity scores across time. A basic statistical model is presented, and analyses and findings are demonstrated with an existing database used in previously published studies. The methods offer promise for future study of the natural course of PTSD chronicity or recovery, risk and resilience factors that influence individual growth or decline, and critical timepoints for intervention.     

A note on some reinforcing properties of university lectures

Contingency management systems in university courses have sometimes assigned the role of reinforcing stimulus to lectures and demonstrations. Attending a lecture was made contingent upon having previously finished certain course assignments. The present paper investigated some variables that control student attendance at lectures. Attendance remained high throughout each course at those class meetings where quizzes contributing to course grades were given or where impending quizzes were discussed. Attendance at lectures over the reading assignments or over material unrelated to course quizzes rapidly declined. When students were given course credit for attending these lectures, or when the lectures included information for future quizzes, attendance increased. When attending these lectures was made contingent upon having completed certain assignments the prior week, no increase in assignment completion was noted and the attendance at the lectures decreased even further. All lectures were given during one class meeting each week. Attendance at the other class meetings during the week remained stable.     

Development and initial validation of an implicit measure of humility relative to arrogance

Data from two studies describe the development of an implicit measure of humility and support the idea that dispositional humility is a positive quality with possible benefits. In Study 1, 135 college students completed Humility and Self-Esteem Implicit Association Tests (IATs) and several self-report measures of personality self-concept. Fifty-four participants also completed the Humility IAT again approximately 2 weeks later and their humility was rated by close acquaintances. The Humility IAT was found to be internally and temporally consistent. Implicit humility correlated with self-reported humility relative to arrogance, implicit self-esteem, and narcissism (inversely). Humility was not associated with self-reported low self-esteem, pessimism, or depression. In fact, self-reported humility relative to arrogance correlated positively with self-reported self-esteem, gratitude, forgiveness, spirituality, and general health. In addition, self-reported humility and acquaintance-rated humility correlated positively; however, implicit humility and acquaintance-rated humility were not strongly associated. In Study 2, to examine the idea that humility might be associated with increased academic performance, we examined actual course grades of 55 college students who completed Humility and Self-Esteem IATs. Implicit humility correlated positively with higher actual course grades when narcissism, conscientiousness, and implicit self-esteem were simultaneously controlled. Implications and future research directions are discussed.