http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Runco, Jordan N. (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
-
-
BROAD H<i>β</i>EMISSION-LINE VARIABILITY IN A SAMPLE OF 102 LOCAL ACTIVE GALAXIES
Runco, Jordan N.,Cosens, Maren,Bennert, Vardha N.,Scott, Bryan,Komossa, S.,Malkan, Matthew A.,Lazarova, Mariana S.,Auger, Matthew W.,Treu, Tommaso,Park, Daeseong American Astronomical Society 2016 The Astrophysical journal Vol.821 No.1
<P>A sample of 102 local (0.02 <= z <= 0.1) Seyfert galaxies with black hole masses M-BH > 10(7)M(circle dot) was selected from the Sloan Digital Sky Survey (SDSS) and observed using the Keck 10 m telescope to study the scaling relations between M-BH and host galaxy properties. We study profile changes of the broad H beta emission line within the three to nine year time frame between the two sets of spectra. The variability of the broad H beta emission line is of particular interest, not only because it is used to estimate M-BH, but also because its strength and width are used to classify Seyfert galaxies into different types. At least some form of broad-line variability (in either width or flux) is observed in the majority (similar to 66%) of the objects, resulting in a Seyfert-type change for similar to 38% of the objects, likely driven by variable accretion and/or obscuration. The broad H beta line virtually disappears in 3/102 (similar to 3%) extreme cases. We discuss potential causes for these changing look active galactic nuclei. While similar dramatic transitions have previously been reported in the literature, either on a case-by-case basis or in larger samples focusing on quasars at higher redshifts, our study provides statistical information on the frequency of H beta line variability in a sample of low-redshift Seyfert galaxies.</P>
-
Mark A. Runco,Jody J. Illies,Roni Reiter-Palmon 대한사고개발학회 2005 The International Journal of Creativity & Problem Vol.15 No.1
Explicit instructions are often used to enhance performance on tests of divergent thinking. Previous research has not, however, compared explicit instructions which focus on criteria with those that focus on tactics. It is one thing to be instructed to “be original” (one possible criterion) and quite another to be given procedures to find original ideas (e.g., “think of things that will bethought of by no one else”). The research reported in the present article was designed with that in mind. In addition to comparing the different types of instructions, it also compared college- students (N = 211) who received instructions which varied in the degree of expli- citness of the applicable strategy. Regression analyses indicated that the procedural instructions had a more robust impact on divergent thinking than did the concep- tual instructions. This difference was especially clear when the divergent thinking tests were scored for ideational originality. Implications for the educational setting and for established group techniques (e.g., brainstorming)are explored.
-
Assessing the Accuracy of Judgments of Originality on Three Divergent Thinking Tests
Mark A. Runco,Gayle T. Dow 대한사고개발학회 2004 The International Journal of Creativity & Problem Vol.14 No.2
The componential model of creative thinking includes ideation (divergent think-ing), problem finding skills, and evaluative accuracy. This investigation was de-signed to assess the accuracy of originality judgments across three different kinds of divergent thinking tests, one (Uses) being verbal, one (Pattern Meanings) figural, and one (Consequences) “realistic.” These tasks were compared using three indices of evaluative accuracy. A second objective of this investigation was to examine the discriminant validity of the evaluative accuracy scores. Given that evaluations re-flect judgment, it was possible that existing measures of judgment and critical thinking would be strongly related to (and even redundant with) the new measures evaluative accuracy. Results from the present investigation confirmed that there were differences among various divergent thinking tests in terms of the accuracy of judgments. Additionally, the measures of evaluative accuracy used here were largely unrelated to more traditional measures of judgment and convergent thinking, which supports the discriminant validity of the evaluative measures.
-
Effects of Verbal feedback Types on Creativity Enhancement of Upper-Grade Elementary School Students
유경훈,Mark Runco 한국창의력교육학회 2019 창의력교육연구 Vol.19 No.2
The purpose of this study was to investigate the effects of two types of verbal feedback, used in creativity promoting programs to improve the creative thinking abilities. In this study, the students were divided into three experimental groups. On the basis of pre-programmed types of verbal feedback, the experimenter observed how well the verbal feedback worked on two groups, using performance-contingent feedback or task-contingent feedback, with the third group as the control where no feedback was given. The research question was, “Is there any difference among three groups for which different verbal feedbacks are used?” The study groups consisted of 174 4th grade students from elementary schools randomly selected in Seoul area, Korea. The Torrance Test of Creativity Thinking (TTCT), in which the creative thinking abilities were scored, was carried out as a pre-test and a post-test. The data were analyzed by using SPSS 20.0. The major results of this study were as follows; the students in the group, which went through the creativity promotion-oriented programs and were given task-contingent feedback, appeared to have improved their creative thinking abilities more than the students in the other groups. In addition to the results, the limitations of this study and directions for future research have been discussed.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
