In addition, he was a Visiting Professor at the University of California at Berkeley, and a Fellow-in-Residence at the Netherlands Institute for Advanced Study.

Lew is best known for his seminal work on the big five personality traits based on the lexical hypothesis, pioneering a myriad of follow-up studies in the past three decades. A past president of the Society of Multivariate Experimental Psychology and the Association for Research in Personality, he has served on both the Cognition, Emotion, & Personality and the Personality & Cognition research review committees of the National Institute of Mental Health. He was a Selection Officer for the U.S. Peace Corps, a consultant to the Intelligence Division of the U.S. Secret Service, a member of the Council of Representatives of the American Psychological Association (APA), and the Chair of the APA Task Force on Honesty and Integrity Testing. He has served on the editorial boards of the Annual Review of Psychology and over a dozen other psychological journals.

Lew's contributions to the scientific literature in personality and psychological assessment include articles on judgment and decision making, the comparative validity of different strategies of test construction, the measurement of situational vs. dispositional attributions in self and peer descriptions, the characteristics of personality traits and states, and the development of taxonomies of personality-descriptive terms in diverse languages. To provide public-domain measures of the most important personality attributes, he has developed an Internet-based scientific collaboratory, the International Personality Item Pool (IPIP: http://ipip.ori.org/). His current research interests include the mapping of personality trait structure, the statistical relations between personality traits and successful online relationships, and the role of personality traits in health.

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Jason received both his B.A. in psychology and Ph.D. in personality and social psychology from the University of Texas at Austin.

Broadly, his research focuses on possible everyday manifestations of personality such as entertainment and social preferences. Jason has developed a range of psychological assessment instruments, ranging from personality and relationship satisfaction measures, to music and entertainment preferences surveys.

Jason's research has been published in international peer-reviewed journals, presented at international scientific conferences, and featured in radio, television and print media, including the BBC, NPR, The New York Times, Los Angeles Times, Sunday Times, Washington Post and Science. He has also served as a consultant to Harris Interactive, GD Worldwide, The Soundlounge, True.com and the Science Centre NEMO in Amsterdam.

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Daniel J. Levitin directs the McGill Laboratory for the Study of Music Cognition, Perception and Expertise. Today a senior scientist, music evangelist, and best-selling author, Dan started his career as a professional musician, later became a music producer and label executive, and eventually a cognitive neuroscientist and web entrepreneur. His formal education spans from engineering, through music, to cognitive psychology and neuroscience.

As a musician Dan has performed with Mel Tormé, Nancy Wilson, and members of the Steve Miller Band and Santana. He served as Vice President of Artists & Repertoire at 415/Columbia Records (now Sony Records) from 1984 - 1988, and as President in 1989. After 415 was sold to Sony, Dan ran a successful production business whose clients included every major American record label and several film companies. He has produced or consulted on albums by artists including Stevie Wonder, Steely Dan and Chris Isaak.

From 1996 - 1998, Dan worked at Interval Research in California, where he developed new musical instrument controllers currently in use by Laurie Anderson and Michael Brook. In 1999, he helped to form the first internet music recommendation service, MoodLogic, which sold to the AMG group in May 2006. He has also served as a consultant for the U.S. Navy Underwater Weapons Station, Apple Computer, Sirius Satellite Radio and MusicGenome. In 2000, Dan became a founding member of McGill University's Center for Interdisciplinary Research in Music Media and Technology.

Dan has published more than 40 peer-reviewed scientific articles, and over 300 popular articles about music and music technology in commercial and trade magazines, including Billboard, Electronic Musician, Mix and Grammy. For his technical and marketing contributions to the recording industry, he has been awarded 12 gold or platinum records, and two of his projects received Oscar nominations. He is the author of the best-selling book "This Is Your Brain on Music: The Science of a Human Obsession" (Penguin, 2006) as well as the highly anticipated and newly released "The World in Six Songs: How the Musical Brain Created Human Song" (Dutton Adult, 2008).

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Dr. Barrett received his Ph.D. in personality psychometrics from the University of Exeter, UK. He was a research scientist at the University of London's Institute of Psychiatry for many years, Chief Scientist at two of the UK's High Security Forensic Psychiatric hospitals, and adjunct Professor of Psychometrics at the University of Auckland, NZ. His research interests include profile construction methodologies, prediction and classifier construction as well as developing next-generation psychological assessment tools and their associated analysis methodologies. He is an author of several psychological test instruments, a patent holder of a new psychological assessment technology (the graphical profiler) and an author of over 90 research articles and book chapters. He is an associate editor of the journal Personality and Individual Differences, a member of the editorial board of the journal Evolutionary Psychology, and a consulting editor for the Journal of Personality Assessment. Less

Most of his work involves or examines the use of the Internet for psychological research, and in particular collection of psychological data (especially personality assessment and self-reports of cognitive function). Many of his ongoing projects are linked to self-disclosure and self-presentation on the Internet. Less

He obtained his Dr.phil. from the University of Hamburg in 1976 and became a Professor of Psychology there in 2004. Dr. Burisch's publications include several journal articles on test construction, as well as Das Burnout-Syndrom (The burnout syndrome; 3rd edition 2006), generally considered the standard German language text on the subject. He continues to teach research methods including psychometrics. Burisch's 10-scale Hamburg Burnout Inventor, available online at www.swissburnout.ch, has scored more that 40,000 hits since early 2006. He is currently working on a comprehensive Inventory of Leadership Capabilities and a Leadership Style Inventory.
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From 1981 to 1985, he served as Assistant Professor at Harvard University. In 1985, Buss moved to the University of Michigan to serve as Associate Professor and later as Full Professor. In 1996, Buss accepted a position at the University of Texas at Austin as Professor. David Buss received the American Psychological Association (APA) Distinguished Scientific Award for Early Career Contribution to Psychology in 1988; the APA G. Stanley Hall Award in 1990; and the APA Distinguished Scientist Lecturer Award in 2001. The University of Texas awarded Buss the President's Associates Teaching Excellence Award in 2001. He was elected President of the Human Behavior and Evolution Society in 2005, and served as President from 2005 - 2007. Buss' primary research interests include human sexuality, mating strategies, conflict between the sexes, the psychology of status and reputation, homicide, jealousy, stalking, and sexual victimization. Less

At St John's he oversees and teaches graduate level training in quantitative methods, research methodology and psychometrics. He has been the Director of the Data Management and Statistics Core Greater New York Center of Excellence for Research in Autism at Mount Sinai School of Medicine since 2003. Dr. Chaplin also has extensive experience collaborating with investigators at Columbia University School of Medicine on behavioral risk factors and interventions for hypertension and coronary heart disease, particularly in minority and low resource populations. Dr. Chaplin was on the faculty of the NIH-OBSSR sponsored Summer Institute on Conducting Randomized Clinical Trials with Behavioral Interventions from 2003-2007. He is an elected member of the Society for Multivariate Experimental Psychology and lists over 60 publications on his curriculum vita, his favorite of which concerns personality and handshaking. Less

He completed his doctorate at the University of Toronto and worked as a postdoctoral fellow at Yale University before moving to the University of Minnesota. In 2007, he won the J. S. Tanaka Dissertation Award for methodological and substantive contributions to the field of personality psychology. He is interested in the structure and sources of personality and is especially interested in the field of personality neuroscience, which attempts to identify the biological substrates of personality traits.
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He did his doctoral work at the University of California at Berkeley, where his dissertation focused on personality in spotted hyenas. In addition to his animal work he also does research on Internet-based methods of data collection and on how human personality is manifested in everyday contexts like bedrooms, offices, webpages and music preferences. Gosling's environmental research is based on the idea that the spaces in which we live and work are rich with information about what we are like. In turn, we gain valuable lessons for both our personal and professional lives. His work has been widely covered in the media, including The New York Times, Psychology Today, NPR, and ÒGood Morning AmericaÓ, and his research is featured in Malcolm Gladwell's Blink. Gosling is the recipient of the American Psychological Association's Distinguished Scientific Award for Early Career Contribution. He lives in Austin, Texas. Gosling's latest book, Snoop: What Your Stuff Says About You will be released in June 2008. Less

Originally from Russia, she received her A.B., summa cum laude, from Harvard University and her Ph.D. in Social/Personality Psychology from Stanford University. Lyubomirsky currently teaches courses in social psychology and positive psychology and serves as the Department of Psychology's graduate advisor. Her teaching and mentoring of students have been recognized with the Faculty of the Year and Faculty Mentor of the Year Awards. In 2002, Lyubomirsky was awarded a Templeton Positive Psychology Prize. Currently, she is an associate editor of the Journal of Positive Psychology and (with Ken Sheldon) holds a 5-year million-dollar grant from the National Institute of Mental Health to conduct research on the possibility of permanently increasing happiness. Less

From 1984-2005 he was a faculty member at University of Virginia and was director of the Jefferson Psychometric Laboratory. He teaches classes in psychometrics, multivariate analysis, and structural equation modeling. McArdle is a visiting fellow at the Institute of Human Development at Univ. of California at Berkeley, an adjunct faculty member at the Department of Psychiatry at the Univ. of Hawaii. He is the lead statistical consultant of the National Collegiate Athletic Association (NCAA), is the director of the National Growth and Change Study (NGCS) and leads the Advanced Training Institute on Longitudinal Modeling for the American Psychological Association. McArdle has won the Cattell Award for Distinguished Multivariate Research (1987), was elected President of the Society of Multivariate Experimental Psychology (1993-94), was elected President of the Federation of Behavioral, Psychological and Cognitive Sciences (1996-1999), and was elected as the Secretary of the Council of Scientific Society Presidents (CSSP, 2000-2002). McArdle has served on advisory boards for the U.S. National Institutes of Health (NIH), including the ACTIVE Collaborative Trials, the National Archive for Computerized Databases in Aging (NACDA), the Health and Retirement Survey (HRS), and the U.S. National Academy of Sciences panel on Institutional Review Boards. In 2002-2003 he was named Lansdowne Professor of the University of Victoria and Jacob Cohen Lecturer of Columbia University. In 2004 he was named a Co-PI of the HRS and he was recently awarded an NIH-MERIT grant from the National Institute on Aging. McArdle's research has been focused on age-sensitive methods for psychological and educational measurement and longitudinal data analysis including publications in factor analysis, growth curve analysis, and dynamic modeling of adult cognitive abilities. Less

He is also Director of the Ph.D. Program in Clinical Psychology and the M.S. Program in Clinical Psychopharmacology. He has authored over 150 publications and presentations, mainly in the areas of applied assessment and professional issues in psychology. He is a former Associate Editor of the Journal of Personality Assessment and has twice won the Society for Personality Assessment Martin Mayman Award for theoretical contributions to the study of personality assessment. Dr. McGrath is currently a candidate for President of the American Psychological Association.
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He has worked in the field of human-computer interaction for over 25 years, doing research and product development in such fields as intelligent interfaces, web-based application design, Internet community development, consumer Internet appliances, and usability evaluation methods. As a consultant, he works with large and small companies to identify customer-driven system requirements, prototype effective human interfaces to those systems, guide the prototype through the development process, and iteratively test and refine the final product. Jim has also served as the program manager for Intelligent Systems at Apple's Advanced Technology Group, Director of User Experience at Gateway's Internet Appliances Division, and the manager of the Human-Computer Interaction Department at Hewlett-Packard Laboratories. He has a Ph.D. in Psychology from the University of California, Los Angeles. Less

His research has covered topics as diverse as marriage and mate choice, parental and grandparental behavior, the evolution of language, culture and art, and the psychology of well-being. He has most recently been working on how to think about the five-factor model of personality from a comparative and evolutionary perspective. He is an editor of the Journal of Evolutionary Psychology, and a consulting editor for Evolution and Human Behavior. Less

His research explores the links among emotion, language, and health. He finds that physician use, biological markers of stress and disease, and maladaptive behaviors can be reduced by simple writing and/or talking exercises. The act of putting emotional experiences into words can also influence a wide array of cognitive and social processes associated with improved health. More recently, Pennebaker and his students have been examining how people's natural use of words can more broadly reflect who they are. The words people use in daily conversation can be powerful predictors of people's health, personality, social situations, and the ways they relate to others. Author or editor of 9 books and over 200 articles, Pennebaker has received numerous research and teaching honors, including an honorary doctorate degree, the Pavlov award, and continuous funding from NSF, NIH, and other federal agencies for over 25 years.
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His interests range from the biological basis of personality to the relationship between personality, motivation, and cognitive performance. His current research is focused on the patterning over time and space of affect, behavior, cognition, and desires (the ABCDs of personality). Some of this research uses web-based assessment of personality and ability to examine the structure of personality. To study the dynamics of personality, he uses experienced-based sampling procedures to measure individual differences in affect and behavior over time. A believer in sharing the science of personality with the general public, he maintains the personality-project web site (http://personality-project.org). He is a fellow of the American Association for the Advancement of Science and the Association for Psychological Science. He is president of the International Society for the Study of Individual Differences (ISSID) as well as the Association for Research in Personality (ARP) and was a president of the Society of Multivariate Experimental Psychology. He is a board member of the Bulletin of the Atomic Scientists. Less

Dr. Roberts received his Ph.D. from Berkeley in 1994 in Personality Psychology and worked at the University of Tulsa until 1999 when he joined the faculty at the University of Illinois. He received the J. S. Tanaka Dissertation Award for methodological and substantive contributions to the field of personality psychology in 1995. He was awarded the prize for the most important paper published in the Journal of Research in Personality in 2000. Most recently he received the Diener mid-career award in Personality Psychology from the Foundation for Personality and Social Psychology. He has served as the Associate Editor for the Journal of Research in Personality, as a member-at-large for the Association for Research in Personality. He is currently the Executive Officer for the Association for Research in Personality, and serves on the Editorial Board of the Journal of Personality and Social Psychology, International Journal of Selection and Assessment, Personality and Social Psychology Review, and Perspectives on Psychological Science.
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He received his B.A. from Cornell University and his Ph.D. from New York University in Social and Personality Psychology.

While at NYU, he studied the effects of media images on eating behavior and body image in college-age women. He also examined differences in how depressed people form impressions of themselves and of others, in comparison to how those impressions are formed by non-depressed people.

Prior to working at Signal Patterns, David was the primary psychologist behind www.personalDNA.com, a personality test completed by nearly 1,000,000 people.

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This interest led to research on emotion more generally, including verbal reports of emotion, facial expression of emotion, concepts of emotion, and children's understanding of emotion. He spent 25 years at the University of British Columbia and then moved to Boston College where he is chair. His current work focuses on the idea that each emotional episode is constructed on the fly and thus less pre-formed than generally thought. A key ingredient of these episodes is a primitive feeling state called core affect. Less

The author or co-author of over 40 published articles and book chapters, he has served as Associate Editor for two journals, the Journal of Personality and Social Psychology and the Journal of Research in Personality, and is also on the editorial board of two other major personality journals. He was 1999 recipient of the Cattell Award for outstanding early career contributions from the Society of Multivariate Experimental Psychology. He is a 1991 PhD graduate of the University of Oregon. Earlier in his career he worked in counseling and clinical positions serving a variety of populations, but he has held academic appointments since 1991. He has written extensively about issues related to personality measurement, the structure of personality attributes, and the representation of these attributes in language, and also carries out research on the structure of beliefs related to worldview, ideology, and values. Less

More specifically, he studies applied and basic psychological assessment, dimensional models of personality and psychopathology, item response theory applications to personality measurement, and computerized adaptive testing. He is active in a number of professional societies and serves on the editorial boards for Journal of Abnormal Psychology and Assessment. Dr. Simms currently is an Assistant Professor in the Department of Psychology at the University at Buffalo, The State University of New York. He holds a BS in Psychology from California Polytechnic State University and MA and PhD degrees in Clinical Psychology from the University of Iowa. Less

She is also Director of the Chinese Emotion Laboratory. Her primary research concerns human affect. Specific ideas pursued include cultural similarities and differences in the description of affect, a defense of the bipolarity thesis that pleasure is the opposite of displeasure, a method relating two circumplex models in social-personality research, a new perspective on defining emotional stability, and the relativity of emotion judgments. A secondary area of her work is on the usefulness of personality in profiling different cultures, studying national stereotypes, predicting social behaviors including academic achievement and group performance, and understanding Internet response behaviors.
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