Frederick A. Peck

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Current search tools on the Web, such as general-purpose search engines (e.g. Google) and domain-specific portals (e.g. MEDLINEplus), do not provide search procedures that guide users to form appropriately ordered sub-goals. The lack of such procedural knowledge often leads users searching in unfamiliar domains to retrieve incomplete information. In(More)
Recent studies suggest that the wide variability in type, detail, and reliability of online information motivate expert searchers to develop procedural search knowledge. In contrast to prior research that has focused on finding relevant sources, procedural search knowledge focuses on how to order multiple relevant sources with the goal of retrieving(More)
Motivated by the importance of retrieving comprehensive healthcare information, we analyzed how information about 12 concepts related to a widely available healthcare topic is distributed across 145 high-quality webpages. The analysis reveals that the distribution of the concepts follows a power law where a few pages contain many concepts, while the(More)
Numerous studies have shown that many users do not acquire the knowledge necessary for the effective and efficient use of computer applications such as spreadsheets and Web-authoring tools. While many cognitive, cultural, and social reasons have been offered to explain this phenomenon, there have been few systematic attempts to address it. This article(More)
In prior work we observed that expert searchers follow well-defined search procedures in order to obtain comprehensive information on the Web. Motivated by that observation, we developed a prototype domain portal called the Strategy Hub that provides expert search procedures to benefit novice searchers. The search procedures in the prototype were entirely(More)
Despite the development of huge healthcare Web sites and powerful search engines, many searchers end their searches prematurely with incomplete information. Recent studies suggest that users often retrieve incomplete information because of the complex scatter of relevant facts about a topic across Web pages. However, little is understood about regularities(More)
Recent studies suggest that users often retrieve incomplete healthcare information because of the complex and skewed distribution of facts across relevant webpages. To understand the causes for such skewed distributions, this paper presents the results of two analyses: (1) A distribution analysis discusses how facts related to healthcare topics are(More)
Despite the development of extensive websites with high-quality information, and the use of powerful search engines, many users find it difficult to find comprehensive information. One reason for this difficulty is that information, even for narrowly well-defined topics, is highly scattered across websites with no page or site containing all the relevant(More)
The concept of growth is at the foundation of the policy and practice around systems of educational accountability. It is also at the foundation of what teachers concern themselves with on a daily basis as they help children learn. Yet there is a disconnect between the criterionreferenced intuitions that parents and teachers have for what it means for(More)
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