The book has a collection of 14 chapters. The first chapter by Hmelo-Silver and Eberbach provides the readers a comprehensive overview of the theoretical underpinnings of PBL and offers the necessary lenses to examine and interpret the subsequent chapters. The last chapter by Bridges, Whitehill, and McGrath summarizes the research directions in PBL based on the work presented in this book.

The main part of the book examines PBL from three different perspectives: learning outcomes, new technologies, and the inside processes. Five chapters focus on different learning outcomes of PBL. Chapter 2 explores the delayed outcomes of PBL by inviting two previous students to reflect back on their PBL experience 16 years ago and discuss the impact of this experience on their later career. Chapter 3 examines board-exam performance by comparing PBL and traditional dental students' exam scores over six years. While it is impressive that the PBL students consistently outperformed the traditional students in their basic science examscores, readers would benefit from a more in-depth discussion of the possible reasons. Chapter 4 compares students' perceived competencies in their profession as the result of a complete or a hybrid PBL curriculum. Chapter 5 examines the influence of two PBL curricula on three different outcomes: (a) students' understanding of PBL, (b) approaches to learning, and (c) exam performance. The study highlights some misalignment between students' understanding and the design intentions of PBL. Chapter 6 addresses a unique construct, learning styles, as the outcome of a three-year PBL curriculum.

Three chapters are dedicated to the topic of new technologies for PBL curriculum design. In light of technology's affordances of multiple modalities, Chapter 7 describes an interactional ethnographic study to understand how different text modalities serve as learning tools to support students' knowledge construction across the PBL cycle. While related to technology, this chapter seems to fit more in the next section of the book with a focus on the processes of PBL. Chapter 8 reports an endeavor to conduct PBL by having students from two different disciplines and separated by time and location to collaborate with each other. While a set of social networking tools are described, readers could benefit from an illustration of how the tools were used to facilitate different phases of the PBL cycle. Chapter 9 compares two different modalities of problem presentation, paper or video, in their influence on the PBL process.

The next four chapters explore the tutorial processes during PBL. Chapter 10 uses discourse analysis and interviews to identify important factors that influence the first-year students' adaptations to the PBL environment. Chapter 11 uses conversation analysis to demonstrate how silence may serve as a productive mechanism to facilitate the PBL process. Chapter 12 examines group dynamics from the perspective of the first-year PBL students. Thefindings highlight the importance of social elements in group dynamics. The last chapter of this section takes a closer look at the actual implementation of PBL and points out the importance of tutors' understanding of PBL structure and processes for effective facilitation of PBL.

Overall, this book features a well-rounded collection of studies examining important topics in current clinical education, although the section on new technologies could be strengthened by including studies on more technologies, e.g., different kinds of simulation technologies that are heavily used in clinical education.

The focus on research is a clear strength of this book. PBL  researchers can reference the variety of research methodologies featured in this volume to examine both the processes and the various outcomes of PBL. The works in this book represent a wide range of medical disciplines, academic levels, and PBL approaches with an emphasis on the implications from research. Hence, PBL practitioners will also find this edited volume very useful in informing their curriculum planning and implementation.

Kun Huang is an instructional designer for the Center for Learning and Development at the University of North Texas Health Science Center. She has implemented PBL in higher education, including health science education, and conducted extensive research on the topic. Correspondence concerning this article should be addressed to Kun Huang, University of North Texas Health Science Center, Center for Learning and Development, 3500 Camp Bowie Boulevard, Fort Worth, TX 76107; E-mail: kun.huang@unthsc.edu.unthsc.edu

Interdisciplinary Journal of Problem-based Learning, Vol. 6: Iss. 2, Article 6

This document has been made available through Purdue e-Pubs, a service of the Purdue University Libraries. Please contact epubs@purdue.edu for additionalinformation.

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Problem-Based Learning in Clinical Education is the eighth in a series of publications dedicated to innovation and change in professional and post-secondary education. It was conceived to share recent scholarship in developing understanding and implementing problem-based learning (PBL). The focus is on 'how', rather than 'why' PBL, with a strong emphasis on research. The editors are to be complimented on the collection of wisdom and analysis from 34 authoritative educators.

There is a helpful and succinct introduction to learning theories and PBL, which describes the features of PBL and its theoretical foundations. Part II covers achievement in student learning outcomes in PBL courses. This section includes a dialogue between three authors on evaluation in PBL, starting with the old mantra that evaluation drives learning. Charles Schuler's piece compares outcomes from the traditional course to PBL in the basic sciences. He concludes that the ability to learn about the basic sciences and understand their relevance to patient care provides a solid basis for lifelong learning and helps promote the concept of evidence-based treatments. There are informative reports from speech, hearing and language schools on their experiences, and the measured outcomes, of PBL on self-directed learning competencies in everyday work, as well as the complexities, challenges and student awareness of the learning cycle.

PBL is now a global phenomenon. One section illustrates the challenges of implementation of this learning model in an Asian pedagogical context. Discourse and divergent cultures are critical influences when investigating PBL as well as learning styles and social relations with peers. There is an interesting analysis of silence in the PBL dynamic. It is potentially a productive and collaborative practice. It can be a platform for handling conflicting information as well as an indication of shifting relations in a group dynamic. A Hamburg study considers the challenges of PBL sessions in a hybrid curriculum and the importance of anticipating problems explained.

This review presents a few vignettes in a volume that constitutes an essential repository of information on education and PBL in the clinical sciences. It is highly recommended by this reviewer.

Diarmuid Shanley - diarmuid.shanley@dental.tcd.ie

Published in European Journal of Dental Education - John Wiley & Sons A/S