This experimental investigation considers how the inherent conceptual structure of external representations influences individuals' knowledge structure, and in addition proposes a measure of global collective knowledge to account for the influence of pre-existing knowledge structure. In two studies, undergraduates in a hospitality management…

This experimental study examined the effects of conceptual change-oriented refutation text (RT) on declarative knowledge and conceptual knowledge. Information Science undergraduates (N = 66) enrolled in two sections of a course with different instructors but the same syllabus were randomly assigned to one of four RT treatments that included read…

This quasi-experimental investigation describes the influence of text signals on second language expository science text comprehension. In two course sections, mixed proficiency Korean English language learners (n = 88) read one of two print-based English expository text passage versions. Participants in one section (n = 44) were given a version…

Previous research has shown that the knowledge structure (KS) complexity of a first language (L1) under certain conditions can strongly influence the KS complexity established in a second language (L2), and then this more complex L2 KS reciprocally influences L2 text comprehension. This present experimental investigation seeks to identify the…

This investigation applies two approaches for representing and comparing text structures as undirected network graphs to describe the influence of narrative and expository lesson texts on readers' knowledge structure elicited as free recall. Narrative and expository lesson texts and undergraduate participants' free recall essays (n = 90)…

In order to further validate and extend the application of recent knowledge structure (KS) measures to second language settings, this investigation explores how second language (L2, English) situation models are influenced by first language (L1, Korean) translation tasks. Fifty Korean low proficient English language learners were asked to read an…

This study explores how collaborative inquiry learning can be supported with multiple scaffolding agents in a real-life field trip context. In practice, a mobile peer-to-peer messaging tool provided meta-cognitive and procedural support, while tutors and a nature guide provided more dynamic scaffolding in order to support argumentative discussions…

This experimental investigation replicates previous investigations of the effects of left margin screen background color hue to signal lesson sections on declarative knowledge and extends those investigations by adding a measure of structural knowledge. Participants (N = 80) were randomly assigned to receive 1 of 4 computer-based lesson treatments…

In this descriptive investigation, we seek to confirm and extend a technique for automatically scoring concept maps. Sixty unscored concept maps from a published dissertation were scored using a computer-based technique adapted from Schvaneveldt (1990) and colleague's Pathfinder network approach. The scores were based on link lines drawn between…

The present study investigated the effects of using different forms of material with 100 eleventh grade students enrolled in a 5-week CBI (computer based instruction) summer enrichment program in Memphis, Tennessee. The basic design consisted of two conditions of instructional support (text and questions vs. questions only), two testings…

This paper describes the possible effects of feedback on learning (associations) using a connectionist tool, the delta rule. Feedback in instruction can be described in terms of the interaction of stimulus inputs and response outputs, an associationist perspective. Here the delta rule is applied to each instance that an input and an output likely…

This investigation considers the instructional effects of color as an over-arching context variable when learning from computer displays. The purpose of this investigation is to examine the posttest retrieval effects of color as a local, extra-item non-verbal lesson context variable for constructed-response versus multiple-choice posttest…

This study was conducted to determine the effect on achievement and attendance of providing students with computer assisted instruction (CAI) progress reports. Subjects included 105 at-risk eleventh graders in a remedial program funded by Holiday Inn. In a 5-week period during the summer, subjects were required to attend 5 CAI instructional…

Discussion of various types of feedback used in computer-assisted instruction focuses on a study of low-ability eleventh graders that compared the effectiveness of answer until correct (AUC) feedback with knowledge of correct response (KCR) feedback. Achievement data on posttests as well as time data are analyzed. (11 references) (LRW)

Describes a study that investigated the effects of using different forms of computer-based feedback on high school students' learning of science material. Hypotheses tested are discussed, five feedback conditions are described, posttests are explained, and results are discussed in terms of the information processing effects of different feedback…