The examination of personality and individual differences is a major field of research in the modern discipline of psychology. Concerned with the ways humans develop an organised set of characteristics to shape themselves and the world around them, it is a study of how people come to be 'different' and 'similar' to others, on both an individual and a cultural level. This volume focuses on the multiple origins of personality and individual differences, in chapters arranged across three thematic sections:Part 1: Biological Origins of Personality and Individual Differences
Part 2: Developmental Origins of Personality and Individual Differences
Part 3: Environmental Origins of Personality and Individual Differences
With outstanding contributions from leading scholars across the world, this is an invaluable resource for researchers and graduate students.

Part 04: Biological Origins of Personality and Individual DifferencesChapter 29: Hormonal Influences on Personality and Individual Differences - Jennifer Guinn Sellers & Thanh Thanh L. NguyenChapter 30: Molecular Genetic Studies of Human Temperament - Kostas A. Papageorgiou & Vijeinika VipulananthanChapter 31: Digit Ratio and Personality and Individual Differences - John T. Manning & Bernhard FinkChapter 32: Morningness-Eveningness and Sociosexuality from a Life-History Perspective - James Marvel-Coen, Coltan Scrivner, & Dario MaestripieriChapter 33: Toward the Molecular Basis of Personality - Turhan CanliPart 05: Developmental Origins of Personality and Individual DifferencesChapter 34: Individual Differences in Personal Narrative: Coherence, Autobiographical Reasoning, and Meaning Making - Theodore E. A. Waters & Christin KöberChapter 35: Developmental Profiles of Individuals with Psychopathic Traits: The Good, the Bad, and the Snake - Marie-Hélène Cigna, Jean-Pierre Guay, & Nathalie M. G. FontaineChapter 36: Generational Changes in Self-Esteem and Narcissism - Eunike Wetzel, M. Brent Donnellan, Richard W. Robins, & Kali H. TrzesniewskiChapter 37: The Role of the Family in Personality Development - Ugo Pace & Alessia PassanisiChapter 38: The Role of Peers in Personality Development - Julia Zimmermann & Anne K. ReitzChapter 39: Personality Development in Adolescence and Young Adulthood - Theo A. Klimstra, Jeroen Borghuis, & Wiebke BleidornChapter 40: The Development of Evolutionarily Adaptive Individual Differences: Children as Active Participants in Their Current and Future Survival - P. Douglas Sellers, II, Karin Machluf, & David F. BjorklundChapter 41: Cross-Situational Consistency, Variability, and the Behavioral Signature - Marc A. Fournier & D. S. MoskowitzChapter 42: Transactions of Personality and the Social Environment During Development - Odilia M. Laceulle & Marcel A. G. van AkenChapter 43: Personality Development in Adulthood - Marcus Mund, Julia Zimmermann, & Franz J. NeyerChapter 44: Moral Character: Current Insights and Future Directions - Erik G. Helzer, R. Michael Furr, & Eranda JayawickremePart 06: Environmental Origins of Personality and Individual DifferencesChapter 45: Cross-Cultural Perspectives on Personality and Individual Differences - Jüri Allik & Anu RealoChapter 46: Threat of Infectious Disease - Iris M. Wang, Nicholas M. Michalak, & Joshua M. AckermanChapter 47: Sex Ration Influences on Personality and Individual Differences - Daniel J. KrugerChapter 48: Individualism and Collectivism - Takeshi Hamamura, Karim Bettache, & Yi XuChapter 49: Exploring Potential Causes of Individual Differences in the Expression of Neonatal Imitation - Siobhan Kennedy-Costantini & Mark NielsenChapter 50: Individual Differences and Romantic Relationships: Bidirectional Influences on Self and Relational Processes - Brent A. Mattingly, Kevin P. McIntyre, & Dylan Faulkner SeltermanChapter 51: The Gender Similarities Hypothesis - Jennifer L. PetersenChapter 52: Positive Personality Change Following Adversity - Eranda Jayawickreme & Corinne E. ZachryChapter 53: Self-Sacrifice for a Cause: A Review and an Integrative Model - Jocelyn J. Bélanger, Birga M. Schumpe, Bhavna Menon, Joanna Conda Ng, & Noemie Nociti