The Role of Observational Learning in Automated Instruction of Complex Tasks

Author(s):  
Barry P. Goettl ◽  
Cathy Connolly Gomez

This study tested the prediction that observational learning will be more effective for motor tasks having substantial cognitive demands than for those that do not. Subjects were divided into three treatment groups: performers, observers, and no-observe controls. In Phase I, subjects were trained on a computer-based flight task requiring relatively little cognitive demands. In Phase II, subjects were trained on a different flight task that had significant cognitive and strategic demands. In Phase I, performers were superior to both observers and controls; the observers did not differ significantly from the controls. In Phase II, observation showed a beneficial effect for females. The female observers performed as well as the female performers. The results of this study suggest that observational learning benefits tasks with significant cognitive components more than tasks that are primarily psychomotor. Implications for computer-based training are discussed.

Author(s):  
Peter Fadde ◽  
Lisa Peden

The director of a university tutoring center collaborates with an Instructional Design and Technology professor and his students to develop an interactive multimedia format that presents at-risk college students with stories of people like them dealing with academic, financial, and personal issues. The scenario-based simulations (SBS) prompt students in a study skills course to openly, but safely, discuss the often sub-optimal decisions made by characters in the scenarios. This case takes readers inside the process of developing the SBS format from scratch. Transcribed interview comments from both the client (the tutoring center director) and the designer (the IDT professor) reveal an iterative and negotiated process rather than a systematic ADDIE process. The case highlights: 1) adapting corporate-style “soft skills” computer-based training (CBT) to higher education, 2) the role of CBT in a blended course, 3) rapid development of multimedia products, and 4) use testing of products with authentic learners.


1957 ◽  
Vol 35 (1) ◽  
pp. 625-630
Author(s):  
Doreen M. Greve ◽  
Lyle H. Hamilton

The disappearance of Evan's blue dye (T-1824) from plasma of dogs and rabbits has been followed for 4 hours in normal and T-1824 pretreated animals. One group of rabbits was pretreated with Thorotrast and the T-1824 disappearance studied for 1 hour. In both species of animals the disappearance pattern consisted of an early rapid fall in plasma dye concentration (Phase I) which was followed by a slower disappearance rate (Phase II). Phase I lasted approximately 30 minutes in dogs and slightly longer in rabbits and was curvilinear on a semilogarithmic plot. The disappearance rate during this period was markedly reduced by reticuloendothelial system (RES) blockade induced by pretreatment with T-1824 or Thorotrast. Phase II was characterized by a linear disappearance rate on semilogarithmic plot. It was more rapid in rabbits than in dogs and was unaffected in either species by RES blocking agents. The findings suggested that the RES was involved only in the first phase of T-1824 removal from plasma and that T-1824 was as effective as Thorotrast in blocking granulopexic activity of the RES.


2003 ◽  
Vol 64 (4) ◽  
pp. 189-194 ◽  
Author(s):  
Marie-Claude R. Bélanger ◽  
Jean Grégoire

Periconceptional folic acid intake: evaluation of a promotional program This study evaluates the efficacy of a regional program promoting periconceptional folic acid intake. Data were collected through a self-administrated questionnaire among 721 (405 for phase I; 316 for phase II) primiparous women. For phase I, 26.1% (CI [Confidence Interval] 95%: 21.9% – 30.4%) of respondents took an adequate periconceptional folic acid supplement, whereas this proportion was 31.6% (CI 95%: 26.5% – 36.7%) for phase II (p > 0.05). For phase I, 62.0% (CI 95%: 57.3% – 66.7%) of women recognized the role of folic acid. For phase II, this proportion significantly rose to 70.9% (CI 95%: 65.9% – 75.9%). Regional activities promoting periconceptional folic acid intake, if maintained, should be modified to significantly increase the proportion of women taking an adequate amount of folic acid.


1977 ◽  
Vol 9 (3) ◽  
pp. 259-267
Author(s):  
Shelagh M. Brescia ◽  
Carl Braun

This investigation focused on the role of meaning in the learning of sight vocabulary for beginning readers. Phase I reported the collection of associative data and reconstruction of a search of meaningfulness for 48 selected nouns. Phase II presented data regarding two sight vocabulary teaching-testing cycles with an intermediate interval inferred for “association verbal encoding” (a/v/e) training. Subjects were 46 first grade children. Results indicate that meaningfulness facilitated rate of acquisition and retention of sight vocabulary and that “process plus content” a/v/e training facilitated sight vocabulary retention when compared to no training in a/v/e.


2006 ◽  
Author(s):  
Sandro Scielzo ◽  
Stephen M. Fiore ◽  
Yaela Dahan ◽  
Joseph Lopez ◽  
Shawn Stafford

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