THE EFFECTS OF ORAL PRESENTATION PREVIEWING RATES ON READING PERFORMANCE

A multielement design was used to compare the effects of rapid oral presentation and slow oral presentation during listening previewing on rates of accurate oral rereading. The participants were 2 elementary students with reading skills deficits. For both students, rates of accurate oral rereading were higher when adults reduced their oral reading rates as students read silently.     

The generalized matching law as a description of multiple-schedule responding

The literature was examined to determine how well the generalized matching law (Baum, 1974) describes multiple-schedule responding. In general, it describes the data well, accounting for a median of 91% of the variance. The median size of the undermatching parameter was 0.46; the median bias parameter was 1.00. The size of the undermatching parameter, and the proportion of the variance accounted for by the equation, varied inversely with the number of schedules conducted, with the number of sessions conducted per schedule, and with the time within a component. The undermatching parameter also varied with the operanda used to produce reinforcers and with the reinforcer used. The undermatching parameter did not vary consistently with component duration or with several other variables. Bias was greater when fewer rather than more schedules were conducted, when two rather than one operanda were used, and when White Carneaux rather than homing pigeons served as subjects. These results imply that the generalized matching law may describe both concurrent and multiple-schedule responding, but that the same variables do not always influence the bias and undermatching parameters in the same way for the two types of schedules.     

Publication rates of Australian academic psychologists

This study focused on publication rates of Australian academic psychologists. A random selection of 12 of the 36 Australian universities with psychology programs produced a total of 272 academics with the academic ranks of lecturer, senior lecturer, associate professor, or professor. A search of the PsycINFO database provided lists of publications for each academic. Using all listed publications except corrections and dissertations, the search found approximately a doubling pattern for number of publications going up each step of the rank ladder. Academics from universities that are members of the research‐intensive Group of Eight universities had significantly higher publication averages at every rank than academics at other universities. Male academics had higher publication rates than female academics, but gender differences accounted for only a small amount of variance in the number of publications. The publication rates have potential value in allowing academic psychologists to compare their publication rate with that of their peers, in helping universities make hiring and promotion decisions, and in helping organisations that provide research grants evaluate the publications records of grant applicants.     

Mentoring in Dutch vocational education: an unfulfilled promise

Between 1998 and 2002 an estimated 250 mentoring programmes were started in Dutch secondary vocational education in order to decrease motivational problems and drop-out rates, especially among youngsters from ethnic minorities. Currently there are only two schools in secondary vocational education that include mentoring as part and parcel of their system of guidance and counselling. The vast majority of mentoring programmes do not run for more than two years. The main reason for this seems to be the absence of a vision of mentoring that explains how and why it works – a vision that is shared by mentors, teachers and school managers. In this article, data presented from four different case studies on mentoring in Dutch vocational education showed that the absence of a shared vision resulted in vague, often contradictory, and conflicting perspectives and actions taken by all parties involved in the mentoring scheme. In fact, because no synergy existed, the mentoring programmes had a marginal position in schools and disappeared as soon as external funding stopped.     

Measuring resistance to change at the within-session level

Resistance to change is often studied by measuring response rate in various components of a multiple schedule. Response rate in each component is normalized (that is, divided by its baseline level) and then log-transformed. Differential resistance to change is demonstrated if the normalized, log-transformed response rate in one component decreases more slowly than in another component. A problem with normalization, however, is that it can produce artifactual results if the relation between baseline level and disruption is not multiplicative. One way to address this issue is to fit specific models of disruption to untransformed response rates and evaluate whether or not a multiplicative model accounts for the data. Here we present such a test of resistance to change, using within-session response patterns in rats as a data base for fitting models of disruption. By analyzing response rate at a within-session level, we were able to confirm a central prediction of the resistance-to-change framework while discarding normalization artifacts as a plausible explanation of our results.     

Local rates of responding and reinforcement during concurrent schedules

The literature was searched for information about the local rates of responding and reinforcement during concurrent schedules. The local rates of reinforcement obtained from the two components of a concurrent schedule were equal when a long-duration changeover delay was used and when many sessions were conducted, except when the two components provided different simple schedules. The local rates of responding were equal under some conditions, but they differed when one component provided a ratio and the other an interval schedule. Across schedules, local rates of reinforcement changed with changes in the schedule of reinforcement. Local rates of responding did not change with changes in change-over-delay duration but did with changes in the changeover ratio and with changes in the programmed rates of reinforcement. The results generally conform to the Equalizing and Melioration Principles and help to clarify current statements of the Matching Law. The results also suggest that changes in the local rates of responding and reinforcement may be orderly across schedules.     

Prevalence of Anxiety and Depression in Australian Adolescents: Comparisons with Worldwide Data

Data from two Australian studies were combined so that the prevalence of anxiety and depression in a large, normative sample of Australian adolescents could be investigated. The combined sample comprised 1,299 adolescents randomly selected from metropolitan and country schools in Melbourne, a large Australian city. The data were examined in order to ascertain the percentages of adolescents who scored above the clinical cut-off on two self-report instruments-the Revised Children's Manifest Anxiety Scale (C. R. Reynolds & B. 0. Richmond, 1985) and the Reynolds Adolescent Depression Scale (W. M. Reynolds, 1986). The results of these analyses were then compared with previously reported prevalence rates from studies worldwide. This comparison revealed striking differences in the prevalence of anxiety and depression across different countries and cultures. Limitations attributable to different self-report measures and imposed-etic approaches are discussed. Issues pertaining to social and political climate are also raised.     

EFFECTS OF EXPLICIT TIMING ON MATHEMATICS PROBLEM COMPLETION RATES IN AFRICAN-AMERICAN THIRD-GRADE ELEMENTARY STUDENTS

A multiple baseline design was used to evaluate the effects of Van Houten and Thompson's (1976) explicit timing procedure on problem completion rates and accuracy levels in African-American third-grade students. During the explicit timing phase, students were told that they were being timed and were instructed to circle the last problem completed at each 1-min interval. Results showed that the explicit timing procedure increased problem completion rates. A decreasing trend in percentage of problems correct also occurred. Exploratory data analysis suggested that decreases in accuracy were not caused by the explicit timing procedure and did not occur in students who had attained high levels of preintervention accuracy. Discussion focuses on recommendations for educators who wish to use timing procedures to increase students' rates of accurate responding.     

Who Speaks First? Analyzing Response Waves in a Large-Scale Campus Climate Survey

ABSTRACT

There has been a recent surge in the number of campus climate surveys conducted across the United States; however, little research has examined response rates. Using data from 5,524 students who participated in a Web-based survey at a large university in a South Atlantic part of the United States, four waves of data corresponding with participation rates after reminder e-mails were analyzed. These waves are first compared across a number of demographic variables. Next, the data on rates of stalking, intimate partner violence, sexual assault, and stranger sexual harassment for each wave are examined. The results show few significant differences in the characteristics of the students participating in each wave, and the victimization rates remained relatively constant across the 4 weeks of data collection.     

断指再植术后肝素抗凝治疗的风险评估

为了研究断指再植术后用肝素抗凝对再植成活率的影响,将112例因完全离断行断指再植术的患者随机分成两组,对照组术后连续应用肝素10天,试验组仅术后应用48小时,对比两组再植术后血管危象的发生率、成活率及活化部分凝血活酶时间(APTT).结果显示试验组血管危象发生率10.7％、成活率94.6％,对照组血管危象发生率8.9％(P＞0.05)、成活率92.9％(P＞0.05).术后第10天试验组和对照组的APTT之间有差异(P＜0.05).所以术后长时间的应用肝素并不能降低血管危象的发生率,也不能提高再植的成活率,相反却会导致APTT延长.     

How research ethics boards are undermining survey research on Canadian university students

In Canada, all research conducted by individuals associated with universities must be subjected to review by research ethics boards (REB). Unfortunately, decisions reached by REBs may seriously compromise the integrity of university-based research. In this paper attention will focus on how requirements of REBs and a legal department in four Canadian universities affected response rates to a survey of domestic and international students. It will be shown that in universities in which students were sent a legalistic cover letter to a mail survey, or were required to sign a consent form, lower response rates were achieved than in universities in which students were sent a relatively friendly letter. In turn, lower response rates resulted in: sample characteristics that deviated from population characteristics; a reduction in the possibility of testing research hypotheses; and increased survey costs. As a consequence, it is argued that the unreasonable demands of REBs are seriously compromising the quality of research that can be carried out on Canadian university students.     

A Review of Symptoms Commonly Associated with Menopause: Implications for Clinical Neuropsychologists and Other Health Care Providers

Menopause is a process, either naturally or medically induced, that occurs in nearly all women at some point in life. Some of the most commonly reported symptoms associated with menopause are hot flushes/flashes, fatigue, headaches, irritability, insomnia, and depression. These symptoms overlap with symptoms commonly reported in Traumatic Brain Injury (TBI) as well as postconcussive syndrome. This overlap between symptoms commonly associated with menopause and neuropsychological conditions makes it necessary to have the base rates of these symptoms and conditions available. The purpose of the present review was to consolidate the clinical literature on the most commonly reported menopausal symptoms and to calculate the base rates associated with these symptoms.     

Age variations in the suicide rates and self-reported subjective well-being of married and never married persons

Previous research has established that people who never marry have higher suicide rates and lower self-reported subjective well-being than the married. The present study examines how the differences between: (1) never married persons who live alone, (2) never married cohabitees; and (3) currently married people, vary between age groups. The relevance of such age variations for status integration theory and theories of marital selection is discussed. Summing up results from previous studies of suicide rates, the relative position of the never married is found to be most unfavourable for people in their 30s and 40s; the differences are smaller among the young and the old. Data on self-reported well-being are taken from a large-scale survey of the population of one of Norway's 19 counties (n = 51 000), and are analysed by means of ordinary multiple regression. With regard to single people who were married or who never married, the results are largely consistent with the suicide findings; the advantage of marriage increases until about 40 years of age, then declines. The survey data also provide information about unmarried cohabitation, which seems to be more or less equivalent to marriage in most age groups. Neither status integration theory nor any other single theory of marriage effects or marital selection seems to be able to account for these findings in a satisfactory way.     

Multivariate base rates for the assessment of executive functioning among children and adolescents

This study provides observed base rates of low executive functioning test scores among healthy children and adolescents, stratifies those base rates by narrow intellectual functioning and age groupings, and provides normative classification ranges to aid the interpretation of performances on the Delis-Kaplan Executive Function System (D-KEFS) in clinical practice and research. Participants included 875 children and adolescents between 8 and 19 years old from the D-KEFS normative sample (48% male; 52% female). Among these participants, 838 had complete data and were included in the current study. The racial/ethnic composition of the sample was: White (73.7%), African American (12.4%), Hispanic (11.1%), and other racial/ethnic backgrounds (2.7%). The Overall Test Battery Mean (OTBM) and the prevalence of low scores at various clinical cut-offs were calculated for the 13 primary scores from the D-KEFS Trail Making Test, Verbal Fluency Test, and Color-Word Interference Test. The OTBM and base rates were also calculated separately for those scores reflecting executive functioning (n = 7) and processing speed (n = 6). Healthy children and adolescents commonly obtained low scores on the D-KEFS tests considered here. Younger age, lower estimated full-scale intelligence quotient, and more test scores interpreted were associated with a greater frequency of low scores. Clinicians and researchers are encouraged to consider these multivariate base rates when assessing and attempting to identify executive functioning impairment among children and adolescents with the D-KEFS.     

Calibrated Bayes Factors Should Not Be Used: A Reply to Hoijtink,van Kooten,and Hulsker

Hoijtink, Kooten, and Hulsker (2016 Hoijtink, H., van Kooten, P., &; Hulsker, K. (2016). Why Bayesian psychologists should change the way they use the Bayes factor. Multivariate Behavioral Research, 51, 1--9. doi: 10.1080/00273171.2014.969364.[Taylor &; Francis Online], [Web of Science ®] , [Google Scholar]) present a method for choosing the prior distribution for an analysis with Bayes factor that is based on controlling error rates, which they advocate as an alternative to our more subjective methods (Morey &; Rouder, 2014 Morey, R.D., &; Rouder, J.N. (2014). Bayesfactor: Computation of Bayes factors for common designs. R package version 0.9.9. Retrieved from http://CRAN.R-project.org/package=BayesFactor [Google Scholar]; Rouder, Speckman, Sun, Morey, &; Iverson, 2009 Rouder, J.N., Speckman, P.L., Sun, D., Morey, R.D., &; Iverson, G. (2009). Bayesian t-tests for accepting and rejecting the null hypothesis. Psychonomic Bulletin and Review, 16, 225–237. doi: 10.3758/PBR.16.2.225[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]; Wagenmakers, Wetzels, Borsboom, &; van der Maas, 2011 Wagenmakers, E.-J., Wetzels, R., Borsboom, D., &; van der Maas, H. (2011). Why psychologists must change the way they analyze their data: The case of psi. A comment on Bem (2011). Journal of Personality and Social Psychology, 100, 426–432. doi: 10.1037/a0022790[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]). We show that the method they advocate amounts to a simple significance test, and that the resulting Bayes factors are not interpretable. Additionally, their method fails in common circumstances, and has the potential to yield arbitrarily high Type II error rates. After critiquing their method, we outline the position on subjectivity that underlies our advocacy of Bayes factors.     

Motor unit firing rates of the first dorsal interosseous differ between male and female children aged 8–10 years

The purpose of this study was to examine possible differences in motor unit action potential amplitudes (MUAP_AMPS) and firing rates of the first dorsal interosseous (FDI) in male and female children aged 8–10 years. Eight male (mean ± SD, age = 8.8 ± 0.7 yrs; BMI = 16.5 ± 1.3 kg/m²) and eight female (age = 9.3 ± 0.9 yrs; BMI = 16.1 ± 1.5 kg/m²) children volunteered to complete isometric trapezoidal muscle actions of the first dorsal interosseous at 50% of maximal voluntary contraction (MVC). Electromyographic signals were decomposed to yield MUAP_AMPS and mean firing rates (MFR) at the targeted force. An exponential model was fitted to the MUAP_AMPS vs. recruitment threshold (RT) while linear models were fitted to the MFRs vs. RT relationships for each subject. Ultrasonography determined the muscle cross-sectional area (CSA) of the FDI. Independent samples t-tests were used to examine possible differences between the male and female children for MVC strength, CSA, and the coefficients from the MU relationships. There were no differences in MVC strength, CSA, or the MUAP_AMP vs. RT relationships between the male and female children (P < 0.05). Males, however, had greater MFRs of lower-threshold MUs as evident by significantly larger y-intercepts (P = 0.019) and more negative slopes (P = 0.004) from the MFR vs. RT relationships. Despite no differences in muscle strength, CSA, and MUAP_AMPS, differences in firing rates existed between male and female children aged 8–10 years. Neural mechanisms may primarily contribute to sex-related differences in firing rates.     

Differential information use for near and distant decisions

Whether choosing a cell phone, a senator, or a kitchen appliance, consumers today quickly find themselves awash in information from commercials, magazines, and websites. Whereas some of this information is broad, decontextualized, and abstracted across multiple individuals and instances, other information is more closely tied to a single experience within one specific context. The present research asks: under what circumstances do people rely on abstracted averages, and when are they swayed by another individual’s particular experience? Across three studies, we show that temporal distance increases the relative weight placed on aggregate vs. individualized information when participants are asked to choose between two sleeping pills, migraine medications, or kitchen appliances, and that this process impacts not only evaluation but also willingness to pay and choice. Potential implications for evaluation, decision-making, and base-rate utilization are discussed.     

Differences in Dropout Rates Among Individual, Couple, and Family Therapy Clients

The premature dropout of clients from therapy is an inefficient expenditure of mental health resources. This study examined differences in dropout rates among individual, couple, and family therapy clients. Data came from archived records at a marriage and family therapy clinic at a university in the United States. Results indicated that there were no significant differences in dropout rates, despite the use of multiple measures of dropout. Thus, from a mental health services perspective, administrators and clinicians can expect that dropout rates will remain fairly consistent across treatment modalities.     

Natural rates of teacher approval and disapproval in the classroom

Sixteen classroom observational studies were conducted to determine natural rates of teacher verbal approval and disapproval in the classroom. Rates of teacher verbal approval and disapproval were measured by the Teacher Approval and Disapproval Observation Record (TAD) over Grades 1 through 12. Teacher verbal approval rates dropped over grade, with a marked drop after second grade. In every grade after second, the rate of teacher verbal disapproval exceeded the rate of teacher verbal approval. These rates are interpreted in terms of reinforcement theory.     

Claiming a moral minority, saccades help create a biased majority: Tracking eye movements to base rates in social predictions

How do people hold erroneous views about their own moral behavior? This study investigated the use of distributional information in self and social predictions by measuring eye movements to base rates. Across 15 scenarios, participants claimed moral superiority over a comparison peer by predicting that base rates would be less predictive of one’s own behaviors than a comparison peer’s. In support of the differential use of distributional information hypothesis, participants looked less often to base rate information when making self rather than social predictions. Eye movements mediated the relationship between target of the prediction and the strength of the relationship between base rates and behavioral likelihood estimates. Implications for self-deception in self and social judgment are discussed.