83 research outputs found
Thoughts From William R. Torbert
No full text My story about the early years of my career leads to the advice: make big mistakes early and often, just be sure you reap some rewards from them later. More specifically, if we wish social science to make a transforming contribution to humankind, we will seek to triangulate among: 1) the third-person, objectified research of virtually all of today’s scholarly journals; 2) the first-person research/practices of researchers studying ourselves in action; and 3) the divergent second-person voices of intersubjective, interactive teams, families, and other meetings. I recommend that young scholars create their own changing/enduring communities of inquiry as developmental sites for improving their first-, second-, and third-person research research methods and teaching practices, especially methods for engaging in double-loop, transforming learning and change. Finally, I invite the field to give itself a real kick in the pants in terms of third-person research standards by requiring that principal variables in quantitative studies explain at least 25% of the variance, and that we treat non-parametric rather than parametric statistics as most meaningful. </jats:p
Torbert, William R., Learning from Experience: Toward Consciousness . New York: Columbia University Press, 1972.
No full textGives an experiential theory of instruction based on experience
Torbert, William R., Creating a Community of Inquiry: Conflict, Collaboration, Transformation . New York: John Wiley and Sons, 1976.
No full textDiscusses the use of action research primarily in social psychology
Reliability and Validity Tests of the Harthill Leadership Development Profile in the Context of Developmental Action Inquiry Theory, Practice and Method
No full textIn this paper, we describe how the Harthill Leadership Development Profile (LDP), a language-based instrument has evolved from Jane Loevinger’s Washington University Sentence Completion Test (WUSCT), and has been redesigned to assess and offer feedback about adults’ action logics in work or educational settings, in the context of Developmental Action Inquiry (DAI) theory, practice, and method (Torbert, 1972, 1976, 1987, 1991; Torbert & Associates, 2004). Next, we challenge a recent critique of the LDP as a soft measure unsupported by published, quantitative psychometric reliability and validity studies (Stein & Heikkinen,2009) and present both previously unpublished and previously published-but-not aggregated studies illustrating Harthill LDP as a well-calibrated measure of adult ego development. Because the DAI approach to social inquiry and social practice invites us all to interweave first-, second-, and third-person inquiry and everyday action, the validity studies reported tend to concern field-based experiments seeking to generate developmentally transforming change in adults, including the researchers and/or interventionists, as well as in the organizations in which they participate. In our conclusion, we briefly consider what a social science and a social practice based on the developmentally late action-logics will look like, once social science is recognized as embracing, not just 3rd-person empirical positivist research “on” subjects, but also 1st-, 2nd-, and 3rd-person research and action with co-participants in live settings
The Power of Balance: Transforming Self, Society, and Scientific Inquiry
No full textThe “power of balance” as conceived by Torbert represents an integral paradigm of principles, theory, and praxis. Deployed, the paradigm is one that can indeed inform and shape the development of self, society, and scientific inquiry. To explicate that fulsome vision, the book’s fifteen chapters develop the themes of three sections: Theory and Strategy, Heart and Practice, and Vision and Method. Here, we have excerpted from several chapters in Theory and Strategy, and from one chapter in Vision and Method.
This means, of course, that we present but a small fraction of this integral classic, leaving out all of the rich, in-depth illustrations, including the author’s learning practice as he first attempted to enact the principles.
Yet, we hope even this abbreviated form of The Power of Balance supports at least two goals: to offer deployable insights and practices for developing politics and the political; and to take root as part of a foundational canon for integral political thought, research, and praxis. How we readers deploy these principles in our own actions will determine the degree to which self, society, and scientific inquiry transform
Torbert, William R., Why Educational Research Has Been So Uneducational: The Case for a New Model of Social Science Based on Collaborative Inquiry, pp. 141-151 in Peter Reason and John Rowan, eds., Human Inquiry . New York: John Wiley and Sons, 1981.*
No full textDescribes collaborative inquiry approaches and assumptions
Genetic variation of the ribosomal DNA intergenic spacer of maize
No full textFour maize (Zea mays L.) populations selected for grain yield BS10, BS11, RBS10, and RSSSC, were assayed for molecular variation in the ribosomal DNA (rDNA) intergenic spacer (IGS) at initial and advanced cycles of selection. RSSSC and RBS10 underwent reciprocal recurrent selection with an inbred tester in a high yield environment, whereas BS10 and BS11 were subjected to full-sib reciprocal recurrent selection. Maize rDNA, is highly repetitive and shows IGS length variation within and among individuals. Five different ribosomal spacer length variants (rslvs) and a polymorphic SstI restriction site were detected in the four populations. The 5 rslvs and the polymorphic restriction fragment were observed in twenty different combinations, or hybridization fragment patterns (HP). RSSSC, RBS10, and BS11 showed significant changes in the overall rslv and HP frequencies between cycle 0 and the advanced cycle of selection, whereas BS10 did not. In general, two specific HPs were more frequent in the majority of the advanced cycles of the four populations. The frequency changes between initial and advanced cycles were more dramatic for HPs than rslvs. These results are consistent with earlier findings and further support the hypothesis that certain rDNA HPs may be responding to selection for grain yield and may be associated with a selective advantage in US Corn Belt environments.Most maize rDNA intergenic spacer studies have concentrated on US Corn Belt germplasm. We examined the genetic variation of the maize rDNA IGS region in 70 maize lines/populations from geographically diverse maize growing regions. Despite the very broad scope of the survey, no new rslvs were discovered although many new HPs were observed. Notably, inbred lines from the Corn Belt (CB) exhibited a significantly different frequency distribution of HPs in comparison to non-Corn Belt (NCB) lines. The most frequent HP among the CB and among the NCB inbred lines differed only in the presence/absence of the polymorphic SstI site in the external transcribed spacer region of the IGS. This suggests that sequence variation in the non-repetitive spacer segment might be associated with lines derived from different ecogeographic areas. We further conducted a comparative sequence analysis of the non-repetitive spacer segment from ribosomal transcription repeats within individuals, and among lines that differ for ribosomal HP. A sequence similarity of 92% to 99%, was found among the IGS repeats. Eighty three variable nucleotide positions constituted the variation along the 1.3 kb of spacer examined. Some segments of the sequence were more variable then others. Sequence variation was observed between repeats within an individual plant and among repeats from different lines. DNA sequence variation among repeats within individuals was of the same magnitude as the variation among repeats from different lines. The ribosomal clone that deviated the most from the consensus sequence of all studied repeats corresponds to the 3.4 kb rslv. Therefore, different rslvs may serve as markers of nucleotide variation in the ribosomal ETS.Made available in DSpace on 2011-05-07T12:02:14Z (GMT). No. of bitstreams: 2
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Previous issue date: 1995Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding ([email protected]) on 2011-05-07T14:35:48Z
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Quantitative trait loci mapping for grain yield and other traits of agronomic importance in maize
No full textSeveral marker loci were associated with more than one trait. Thus genes controlling these traits may map to the same chromosomal regions or have pleiotropic effects. Although a number of marker loci were associated with genotype by environment interactions (GXE) for grain yield among individual environments each year, the associations detected for combined environments within a year were stable between 1991 and 1992.Made available in DSpace on 2011-05-07T13:46:08Z (GMT). No. of bitstreams: 2
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Previous issue date: 1993Restriction fragment length polymorphisms (RFLPs) were used as molecular markers to identify chromosomal regions associated with quantitative traits in maize (Zea mays L.). Four Lancaster type inbreds were used to produce 66 F\sb7 recombinant inbred lines (RIs). One hundred-one RFLP loci were polymorphic among two or more of the parental inbreds and used to determine marker genotypes of the 66 RIs. Seventy-two of these markers that were polymorphic among the RIs were used to make associations with QTL. Phenotypic data were obtained from the evaluation of the line per se performance in replicated trials in 1992, and from testcross performance of the 66 RIs and four parents crossed to three diverse inbred testers. The testcross progeny were evaluated in replicated trials in two environments in 1991 and three environments in 1992.Association of the line per se data sets with molecular marker data revealed marker-trait associations for plant height, ear height, days to anthesis, and days to silk emergence. In most instances, marker loci having significant associations for plant height were also associated with ear height. A number of marker loci influencing plant height were identified in the same genomic regions as major qualitative mutants that affect plant stature.Association of yield trial data with molecular marker genotypes of the 66 RIs identified marker loci significantly associated with grain yield, grain moisture, stalk lodging, and root lodging. Some marker loci showed significant associations for grain yield with one or two testers, while others showed significant associations for grain yield with all three testers. Clusters of three or more RFLP loci significantly associated with grain yield on chromosomes 2S and 7L suggest the presence of major grain yield QTL at these locations.Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding ([email protected]) on 2011-05-07T14:58:56Z
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Genetic variation of the ribosomal DNA intergenic spacer of maize
No full textFour maize (Zea mays L.) populations selected for grain yield BS10, BS11, RBS10, and RSSSC, were assayed for molecular variation in the ribosomal DNA (rDNA) intergenic spacer (IGS) at initial and advanced cycles of selection. RSSSC and RBS10 underwent reciprocal recurrent selection with an inbred tester in a high yield environment, whereas BS10 and BS11 were subjected to full-sib reciprocal recurrent selection. Maize rDNA, is highly repetitive and shows IGS length variation within and among individuals. Five different ribosomal spacer length variants (rslvs) and a polymorphic SstI restriction site were detected in the four populations. The 5 rslvs and the polymorphic restriction fragment were observed in twenty different combinations, or hybridization fragment patterns (HP). RSSSC, RBS10, and BS11 showed significant changes in the overall rslv and HP frequencies between cycle 0 and the advanced cycle of selection, whereas BS10 did not. In general, two specific HPs were more frequent in the majority of the advanced cycles of the four populations. The frequency changes between initial and advanced cycles were more dramatic for HPs than rslvs. These results are consistent with earlier findings and further support the hypothesis that certain rDNA HPs may be responding to selection for grain yield and may be associated with a selective advantage in US Corn Belt environments.Most maize rDNA intergenic spacer studies have concentrated on US Corn Belt germplasm. We examined the genetic variation of the maize rDNA IGS region in 70 maize lines/populations from geographically diverse maize growing regions. Despite the very broad scope of the survey, no new rslvs were discovered although many new HPs were observed. Notably, inbred lines from the Corn Belt (CB) exhibited a significantly different frequency distribution of HPs in comparison to non-Corn Belt (NCB) lines. The most frequent HP among the CB and among the NCB inbred lines differed only in the presence/absence of the polymorphic SstI site in the external transcribed spacer region of the IGS. This suggests that sequence variation in the non-repetitive spacer segment might be associated with lines derived from different ecogeographic areas. We further conducted a comparative sequence analysis of the non-repetitive spacer segment from ribosomal transcription repeats within individuals, and among lines that differ for ribosomal HP. A sequence similarity of 92% to 99%, was found among the IGS repeats. Eighty three variable nucleotide positions constituted the variation along the 1.3 kb of spacer examined. Some segments of the sequence were more variable then others. Sequence variation was observed between repeats within an individual plant and among repeats from different lines. DNA sequence variation among repeats within individuals was of the same magnitude as the variation among repeats from different lines. The ribosomal clone that deviated the most from the consensus sequence of all studied repeats corresponds to the 3.4 kb rslv. Therefore, different rslvs may serve as markers of nucleotide variation in the ribosomal ETS.U of I OnlyETDs are only available to UIUC Users without author permissio
Harvard business review on the tests of a leader
No full textBuku "Harvard Business Review on the Tests of a Leader" adalah sebuah kumpulan artikel terbaik dari Harvard Business Review yang membantu pemimpin untuk menghadapi ujian yang mereka hadapi setiap hari. Buku ini membahas topik tentang kemampuan eksekutif, kepemimpinan, dan manajemen. Buku ini berisi tujuh artikel, termasuk diantaranya: "Crucibles of Leadership" oleh Warren G. Bennis dan Robert J. Thomas; "Level 5 Leadership: The Triumph of Humility and Fierce Resolve" oleh Jim Collins; dan "Seven Transformations of Leadership" oleh David Rooke dan William R. Torbert. Buku ini diterbitkan oleh Harvard Business School Press pada tahun 2007, memiliki vii + 195 halaman, dan termasuk dalam seri Harvard Business Review Paperback.vii, 195 p : ill ; 21 cm
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