Individual differences in achievement goals: A longitudinal study of cognitive, emotional, and achievement outcomes   总被引：3，自引：0，他引：3  

Lia M. Daniels  Tara L. Haynes  Robert H. Stupnisky  Raymond P. Perry  Nancy E. Newall  Reinhard Pekrun 《Contemporary educational psychology》2008,33(4):584-608

Within achievement goal theory debate remains regarding the adaptiveness of certain combinations of goals. Assuming a multiple-goals perspective, we used cluster analysis to classify 1002 undergraduate students according to their mastery and performance-approach goals. Four clusters emerged, representing different goal combinations: high mastery/performance (i.e., multiple goals), dominant mastery, dominant performance, and low mastery/performance (i.e., low motivation). In a longitudinal analysis over one academic year, the clusters were compared on cognitive appraisals (expected achievement, perceived success), achievement-related emotions (enjoyment, boredom, anxiety), and objective measures of academic achievement (final grade in Introductory Psychology, GPA). The low-motivation cluster demonstrated the least adaptive profile across all outcomes. The multiple-goals, mastery, and performance clusters showed equivalent levels of achievement; however, students in the performance cluster were more psychologically and emotionally vulnerable than the multiple-goals and mastery clusters. Our discussion focuses on the immediate and potentially long-term implications of specific goal combinations for students and educators, with particular attention to understanding the cognitive and emotional vulnerabilities of students in the performance cluster which appear despite satisfactory achievement levels.  相似文献   

The Roles of Privacy and Trust in Children's Evaluations and Explanations of Digital Tracking     

Susan A. Gelman  Nicole Cuneo  Sanika Kulkarni  Sarah Snay  Steven O. Roberts 《Child development》2021,92(5):1769-1784

A “digital revolution” has introduced new privacy violations concerning access to information stored on electronic devices. The present two studies assessed how U.S. children ages 5–17 and adults (N = 416; 55% female; 67% white) evaluated those accessing digital information belonging to someone else, either location data (Study 1) or digital photos (Study 2). The trustworthiness of the tracker (Studies 1 and 2) and the privacy of the information (Study 2) were manipulated. At all ages, evaluations were more negative when the tracker was less trustworthy, and when information was private. However, younger children were substantially more positive overall about digital tracking than older participants. These results, yielding primarily medium-to-large effect sizes, suggest that with age, children increasingly appreciate digital privacy considerations.  相似文献   

Detection of enzymes dehydrogenases and proteases inBrugia malayi filarial parasites     

Y. P. Bhandary  K. N. Krithika  Sandeep Kulkarni  M. V. R. Reddy  B. C. Harinath 《Indian journal of clinical biochemistry : IJCB》2006,21(1):1-7

Lymphatic filariasis caused mainly by infection fromW. bancrofti andB. malayi remains a major cause of clinical morbidity in tropical and subtropical countries. Analysis ofB. malayi mf, infective larval and adult worm lysates for the activity of enzymes led to the demonstration of activities of three key enzymes of carbohydrate metabolism viz., Malate dehydrogenase (MDH), Malic enzyme (ME) and Glucose-6-phosphate dehydrogenase (G6PDH) in all the three stages of the parasite. The specific activity of all the three dehydrogenases was significantly high in mf lysate compared to their activity in lysates of the other two stages (P<0.001). Analysis by native polyacrylamide gel to their activity inlysates of the other two stages (P<0.001). Analysis by native polyacrylamide gel electrophoresis (PAGE) using 7.5% non-gradient gel showed the presence of two isoforms of each of the three enzymes (MDH, ME & G6PDH) in mf lysate, while only one form of each enzyme was present in L₃ larval and adult worm lysates. Further proteolytic enzyme activity was demonstrated both in microfilarial and infective larval lysates ofB. malayi. While both mf and L₃ larval lysates showed optimal protease activity at alkaline pH of 9.0, the mf lysate showed increased activity also at pH 3.0. The infective larval lysate was markedly inhibited by Tosylamide-L-Phenylalanine chloromethyl ketone (TPCK), a thiol protease inhibitor, while the protease activity in mf lysate was significantly inhibited by both TPCK and a serine protease inhibitor Phenyl Methyl Sulphonyl Flouride (PMSF). In sodium do-decyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE), using gelatin copolymerized gel, the microfilarial lysate showed 3 protease molecules of 40 kDa, 180 kDa and 200 kDa and the L₃ larval lysate had 6 protease molecules of 18, 25, 37, 49, 70 and 200 kDa size.  相似文献   

The Case for Women Mentoring Women     

Betty Ann Block  Tara Tietjen-Smith 《Quest (Human Kinetics)》2016,68(3):306-315

ABSTRACT

The authors argue that there will be a critical mass of women in leadership positions in kinesiology and across higher education for substantial gender-based mentoring to take place in the 21st century. First, the current state of women in higher education leadership, trends in mentoring, and the reasons it is important for women who have aspirations to advance in their careers are examined. The authors argue that it is important to have access to gender-based guidance and support that are critical to successful leadership into the future. The authors advocate for a focused, purposeful type of mentoring supported by relational-cultural theory and narrative practice. Men will continue to be important mentors for women, but the authors argue that, at the same time, women also need to have access to the perspectives of other women who have forged the way into higher education administration.  相似文献   

Oral reading fluency as a screening tool with English learners: A systematic review     

Kirsten W. Newell  Robin S. Codding  Tara W. Fortune 《Psychology in the schools》2020,57(8):1208-1239

Students learning to read in more than one language are a growing population in schools. Early screening and identification of reading difficulties may lead to better outcomes for all students. Oral reading fluency (ORF) is one tool shown to be both a reliable measure of reading and an accurate method to identify students at risk for poor reading outcomes. This study synthesized available validity evidence for ORF with biliterates. All included studies (n = 31) were conducted with English language learners in grades K–8. Results suggested that although ORF is correlated with reading outcomes, the accuracy of ORF to identify English learners at risk of poor reading outcomes does not meet criteria. The strength of validity evidence differed by language proficiency of participants. Finally, the quality of the reviewed studies was low in critical areas.  相似文献   

Multiple perceptions of children's aggression: Differences across neighborhood,age, gender,and perceiver     

Cynthia Hudley  William D. Wakefield  Brenda Britsch  Su‐Je Cho  Tara Smith  Marlene Demorat 《Psychology in the schools》2001,38(1):43-56

We investigated how overtly aggressive behavior was differentially perceived by two types of perceivers, teachers and peers, as a function of student neighborhood, gender, and grade level. Participants (N= 765) were predominantly African American students in grades 3‐5 recruited from two urban public schools in southern California. The neighborhoods surrounding the two schools differed in levels of identified violent crime and economic levels. Teachers in the community experiencing more violence perceived student behavior to be relatively less aggressive and more similar across genders than did teachers in the less violent community. Peers in the community experiencing more violent crime perceived both boys and girls to be somewhat aggressive, whereas in the less violent community, boys were perceived as aggressive more so than were girls. In general, agreement between teacher and peer perceptions was stronger for boys than for girls. © 2001 John Wiley & Sons, Inc.  相似文献   

A Microarray Immunoassay for Serum Thyrotropin and Thyroglobulin Using Antibodies Immobilized on Track-Etched Membranes     

Bharti Jain  J. Kumarasamy  Chandrakala Gholve  Savita Kulkarni  M. G. R. Rajan 《Indian journal of clinical biochemistry : IJCB》2017,32(2):193-199

Serum thyroglobulin (Tg) and thyroid stimulating hormone (TSH) measurements have evolved as important analytes for monitoring the prognosis of patients with differentiated thyroid cancer, post-thyroidectomy. Individual analyte immunoassay is the current practice in clinical pathology, but the simultaneous assay for all relevant analytes for a given disease, can reduce assay costs, improve patient compliance and give the clinician more information for an unequivocal diagnosis. Microarray immunoassay (MI) can achieve this goal and, hence, we have developed and validated a immuno-radiometric MI for quantitation of serum TSH and Tg by using highly micro-porous polycarbonate (PC) track-etched membranes (TEM) to immobilize the monoclonal anti-TSH and polyclonal anti-Tg antibodies in ~1 mm diameter spots. Non-competitive immunoassays were performed using mixture of ¹²⁵I labeled monoclonal anti-TSH and anti-Tg antibodies. Phosphorimager was used to quantify the bound radioactivity. TSH and Tg were detected with detection limit of 0.07 µIU/ml and 0.13 ng/ml respectively, which is lower than the clinically required cut-off level. The assay showed: acceptable intra-assay precision within 20 % and recovery in the range of 76–111.2 %. MI compared well with the established immunoradiometric assay (IRMA) with r = 0.98, p < 0.01 (n = 41). No cross-reactivity was seen between the immobilized antibodies. Although two hormones are addressed in this report, MI using PC TEM and isotopic/non-isotopic tracers has the potential for highly automated multiplexed analysis.  相似文献   

Teaching the Alphabet: Reconciling the Past and the Present     

Linda Shidler  Tara Harrigan 《Early Childhood Education Journal》2010,37(4):239-240

This guest editorial focuses on a reflective journey of two early childhood professionals as student and teacher turning into classroom teacher and literacy coach. In addition, this editorial explores some of the worries the classroom teacher expressed during a reflective journey in learning ways in which to teach alphabet letter recognition that increased child outcomes.  相似文献   

Successful teaching placements in secondary schools (Achieving QTS Practical Handbooks)     

Tara Shirazi 《欧洲师范教育杂志》2010,33(3):323-326

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Prejudice is price of AIDS awareness     

Patel T 《New scientist (1971)》1995,148(2007):9

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