Donald T. Campbell
Social scientist and methodologist
Social scientist and methodologist
1996
29 years ago — 80 years old
Thinkers & Philosophers
United States
A significant figure in social science, contributed to the fields of sociology and psychology. Developed the concept of 'social validity' and made significant advancements in research methodology. Promoted the understanding of experimental design, emphasizing the importance of context in psychological research. Authored various influential works, including 'Methodology of Research in Psychology'. Served as a professor at multiple institutions, including the University of California, Berkeley, and the University of Chicago.
Developed the concept of social validity
Authored Methodology of Research in Psychology
Advanced research methodology in social sciences
A rugby league player from New Zealand, opportunities came in the National Rugby League (NRL) with the Wests Tigers. Simona played as a centre and made significant contributions to the team's performances. Over several seasons, he established himself within the league and gained recognition for his skills on the field. His career in professional rugby league included notable matches and competitions, showcasing talent and commitment to the sport.
Continue ReadingAn Australian actor and director achieved recognition for performances in film and television. Gained prominence after starring in the horror film 'The Purge' as the main villain, showcasing a compelling blend of charm and menace. Participated in various television series, including 'True Blood' and 'The Night Shift.' As a director, helmed the film 'The Disappearance of Eleanor Rigby.' Engagement with the arts includes acting in independent projects and mainstream productions.
Continue ReadingPlayed as a midfielder, contributing to various clubs in Armenia. Had a notable stint with FC Banants, showcasing skills in both domestic leagues and international competitions. Represented the Armenian national team in international fixtures, further elevating presence in the sport. His career continued with involvement in other clubs, cementing a role in Armenian football history.
Continue ReadingBorn in 1988, a Venezuelan footballer primarily played as a defender. Started professional career at Caracas FC before moving to Europe, where spells included clubs like Espanyol and Málaga in Spain. Played for the national team making contributions in various international tournaments. Competed in the 2014 FIFA World Cup, representing Venezuela on a global stage. Noted for defensive skills and leadership on the field.
Continue ReadingAn Orthodox archbishop contributed significantly to religious thought through preaching and philosophy. His theological insights shaped the practices within the archdiocese. Engaged in various ecclesiastical duties, he guided his congregation and participated in regional theological discourse. His writings reflect a synthesis of orthodox beliefs and philosophical inquiry, establishing a theological framework for future generations. His role as a leader in the church extended to pastoral care, education, and community engagement during his tenure.
Continue ReadingA Serbian footballer who primarily plays as a winger and attacking midfielder. Began professional career at Vojvodina before moving to play for Groningen in the Netherlands. Gained prominence at Twente, where a successful tenure included winning the Eredivisie title in 2010. Later joined Southampton in the Premier League, contributing to the team for four seasons. Currently serves as captain of Ajax in the Eredivisie, leading the team to domestic and European competitions, including winning multiple league and cup titles. A key player for the Serbian national team, participating in the 2018 FIFA World Cup.
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