6,078 articles
Prejudice
Prejudice is an unfavorable affective reaction to a group and its members, distinct from stereotypes (beliefs) and discrimination (behavior). Meta-analyses quantify intergroup contact and other prejudice-reduction interventions, with field experiments averaging d = 0.51.
Premarital sex
Premarital sex is sexual activity before marriage. Surveys show wide global variation (median 46% of 40 countries call it unacceptable), rising US acceptance, and lower reported rates among religious and Muslim-majority populations.
Prepulse inhibition
Prepulse inhibition (PPI) is the weakening of the startle reflex when a weak prepulse precedes a startling stimulus by 20–500 ms, a standard measure of sensorimotor gating.
Preschool Language Scale
The Preschool Language Scale (PLS) is a standardized, play-based test of receptive and expressive language in young children, used to screen for and diagnose language delay or disorder.
Presentation
A presentation is a talk or demonstration that conveys information from a speaker to an audience, such as a lecture or business pitch, often supported by visual aids like slides.
Pretty privilege
Pretty privilege, studied academically as the beauty premium or lookism, is the systematic economic and social advantage of physically attractive people: roughly 20 percent higher earnings, promotion advantage, and task-dependent hiring bias driven partly by statistical discrimination.
Pride
Pride is a self-conscious emotion that arises when a goal is attained and others recognize and approve the achievement, covering both genuine accomplishment and arrogance.
Pride flag
Pride flag, or rainbow flag: six-stripe LGBTQ+ symbol created by Gilbert Baker in 1978 for San Francisco's Gay Freedom Day Parade, first flown June 25, 1978; variants include the 2018 Progress Pride flag by Daniel Quasar.
Pride Month
Pride Month, the annual June LGBTQ+ commemoration honoring the 1969 Stonewall Uprising, marked by parades, marches, and memorials worldwide, originating in the 1970 Christopher Street Liberation Day marches in Chicago, Los Angeles, New York, and San Francisco.
Pride parade
Pride parade: annual LGBTQ+ commemoration of the 1969 Stonewall riots; first held June 28, 1970 as Christopher Street Liberation Day in New York, with same-year marches in Chicago, Los Angeles, and San Francisco; now 300+ parades in 60+ countries.
Priesthood in the Catholic Church
Priesthood in the Catholic Church: the ordained ministry of bishops, priests, and deacons within one sacrament of Holy Orders, conferred by bishops through the laying on of hands, reserved to baptized men, and distinguished from Protestant ministry and Orthodox married-clergy practice.
Priming (psychology)
Priming, or cognitive priming, is a psychological phenomenon in which recent exposure to a stimulus speeds or slows responses to it or similar ones, usually without awareness.
Prince Hall
Prince Hall (c. 1735-1807) was a free Black Bostonian abolitionist who founded African Lodge No. 459 in 1775-1784, the origin of Prince Hall Freemasonry, the oldest continuously active African American organization.
Prince Hall Freemasonry
Prince Hall Freemasonry, also known as Prince Hall Masonry, is the predominantly African American branch of Freemasonry, begun in Boston in 1775 by Prince Hall and fourteen other free Black men.
Prince Nicholas of Romania
Prince Nicholas (Nicolae) of Romania (1903-1978): second son of King Ferdinand I and Queen Marie, brother of Carol II, regent 1927-1930 for child King Michael; exiled 1937 after marrying Ioana Doletti.
Princess Ameerah Wardatul Bolkiah
Princess Ameerah Wardatul Bolkiah, or Princess Ameerah of Brunei, is a princess of Brunei born in 2008, the twelfth child of Sultan Hassanal Bolkiah and Azrinaz Mazhar Hakim.
Princess Caroline of Monaco
Princess Caroline of Monaco, Princess of Hanover, eldest sister of Prince Albert II, presides over Monaco's cultural institutions (Ballets de Monte-Carlo, Fondation Prince Pierre, Printemps des Arts) and humanitarian bodies AMADE and the Princess Grace Foundation.
Princess Chrysí of Greece and Denmark
Princess Chrysí of Greece and Denmark (Chrysi Vardinogianni), Greek shipping heiress, daughter of Giorgos Vardinogiannis; married Prince Nikolaos de Grèce on 7 February 2025 in Athens, wearing the Antique Corsage tiara.
Princess Fahdah Hashim (فهدة محمد أبو نيان)
Princess Fahdah Hashim, born Fahdah Mohammed Abunayyan, is a Saudi-born member of the Jordanian royal family, the wife of Prince Hashim bin Al Hussein since 2006.
Princess Lalla Meryem of Morocco
Princess Lalla Meryem of Morocco (Lalla Meryem), born 1962 in Rome, eldest sister of King Mohammed VI, chairs the ONDE child-rights observatory, leads women's and anti-child-labor initiatives, and holds UNICEF-support and UNESCO goodwill roles.
Princess Lilian, Duchess of Halland
Princess Lilian, Duchess of Halland, born Lilian May Davies, was a Welsh-born member of the Swedish royal family who married Prince Bertil in 1976 after decades together.
Princess Maria Carolina of Bourbon-Two Sicilies (born 2003)
Princess Maria Carolina of Bourbon-Two Sicilies (Maria Carolina di Borbone-Due Sicilie, born Rome 2003) is eldest daughter of Duke Carlo of Castro, heiress of the Castro branch after the 2016 abolition of Salic law, a Monaco-based influencer, and partner of Jordan Bardella.
Princess Maria Chiara of Bourbon-Two Sicilies
Princess Maria Chiara of Bourbon-Two Sicilies (Maria Chiara di Borbone-Due Sicilie), younger daughter of Charles and Camilla, Duke and Duchess of Castro; Duchess of Noto and Capri; second in line after the 2016 succession change; WWF Ambassador since 2023.
Princess Muta-Wakkilah Hayatul Bolkiah
Princess Muta-Wakkilah Hayatul Bolkiah (متوكلة حياة البلقية), born 1971, is a daughter of Sultan Hassanal Bolkiah of Brunei, a Gray's Inn barrister called to the Bar in 2007, and former Legal Counsel in the Attorney General's Chambers.
Princess Nor'ain of Brunei
Princess Nor'ain of Brunei, Pengiran Anak Puteri Nor'ain, Brunei royal princess born 1950 at Istana Darussalam; married Pengiran Anak Mohammad Yusof in the 19 September 1965 royal wedding; daughter of the era of Sultan Omar 'Ali Saifuddien III.
Princess Olga Andreevna Romanoff (Ольга Андреевна Романова)
Princess Olga Andreevna Romanoff (Ольга Андреевна Романова), born 1950, London-based Romanov descendant, daughter of Prince Andrei Alexandrovich, and president since 2017 of the Romanov Family Association, distinct from Maria Vladimirovna's Imperial House claim.
Princess Ragnhild, Mrs. Lorentzen
Princess Ragnhild, Mrs. Lorentzen (Ragnhild Alexandra, 1930–2012), eldest child of King Olav V of Norway, sister of Harald V; married Erling Lorentzen 1953, lost Royal Highness style, lived in Rio de Janeiro from 1953.
Principles of grouping
Principles of grouping, or Gestalt laws, are rules of visual perceptual organization, including proximity, similarity, closure, good continuation, common fate, and Prägnanz, formulated by Wertheimer in 1923 and later quantified and given neural and computational accounts.
Priory of Sion
Priory of Sion (Prieuré de Sion): association founded 7 May 1956 in Annemasse, France, by Pierre Plantard and three others; later given a fictitious medieval history through forged Dossiers Secrets, inspiring Holy Blood, Holy Grail and The Da Vinci Code.
Prism adaptation
Prism adaptation is a behavioral paradigm in which wedge-prism goggles shift the visual field, recalibrating vision and action; since 1998 it has treated visuospatial neglect after stroke.