Glossary / Y
Psychology terms starting with Y
32 terms with short definitions. Study these as flashcards
- Y chromosomenoun
- A small sex chromosome that usually makes an embryo develop male traits in mammals.
- Y mazenoun
- A Y-shaped apparatus lets researchers study animal learning and memory through choices between branching paths.
- y primenoun
- The notation y′ indicates a prediction or expected value calculated for a variable labeled y.
- y-axisnoun
- The vertical line on a graph, usually showing scores or amounts.
- y-coordinatenoun
- A point’s second coordinate gives its vertical position relative to zero on a standard two-dimensional graph.
- y-interceptnoun
- A line’s crossing of the vertical axis gives its y value when x is zero.
- Y-linkedadjective
- Describing a gene or trait carried on the Y chromosome and passed from fathers to sons.
- y′other
- The symbol y′ stands for a predicted or expected result for the variable y.
- yagénoun
- Another name for ayahuasca describes a psychedelic plant drink used in some Indigenous Amazonian spiritual and healing traditions.
- yakeenoun
- Another name for epena describes a hallucinogenic snuff derived from Virola tree bark in South America.
- Yale modelnoun
- A persuasion theory proposes that attitudes change through encountering, attending to, understanding, accepting, and remembering a message.
- yantranoun
- A visual design serves as a focus for attention during meditation.
- Yates’s correction for continuitynoun
- An adjustment makes a two-by-two chi-square test more conservative when a smooth probability model approximates separate whole-number counts.
- yauponnoun
- An evergreen holly, Ilex vomitoria, has caffeine-containing leaves traditionally used by Indigenous North American peoples to make a drink.
- yawningnoun
- Taking a big breath through the mouth, often linked to sleepiness, boredom, and brain chemical activity.
- yea-sayingnoun
- A habit of saying yes to questions no matter what they ask, which can skew survey results.
- Yerkes–Dodson lawnoun
- A proposed pattern suggests performance may improve as arousal rises, then decline when arousal becomes too high for the task.
- Yerkishnoun
- A communication system uses geometric symbols to investigate how nonhuman primates learn and use language-like forms.
- yes–no tasknoun
- In a perception experiment, participants repeatedly report whether they detected a signal.
- yin and yangphrase
- Chinese philosophy describes contrasting, connected aspects of reality whose changing relationships contribute to balance and harmony.
- yoganoun
- A practice using postures, breathing, and attention to improve relaxation, body control, and mental focus.
- yohimbinenoun
- A plant-derived stimulant blocks alpha-2 adrenergic receptors and can increase arousal, anxiety, or panic.
- yoked-control groupnoun
- A comparison group has each member’s experiences linked to another participant’s, while the condition being tested differs.
- you statementnoun
- During a disagreement, a speaker frames an issue around the other person’s behavior or qualities, often conveying blame.
- young male syndromenoun
- A proposed behavioral pattern links young men’s greater average risk-taking and confrontations to competition for social standing.
- young-oldadjective
- This age grouping describes older adults roughly between ages 65 and 74.
- Young–Helmholtz theory of color visionnoun
- This theory explains color perception through combined activity of three receptor types sensitive to different light wavelengths.
- Youngberg v. Romeonoun
- This Supreme Court ruling recognized institutionalized people's rights to reasonable safety, limited restraints, and necessary supportive services.
- youponnoun
- This evergreen holly, also called yaupon or cassina, has caffeine-containing leaves traditionally brewed into drinks by Indigenous peoples.
- youth counselingnoun
- Professional guidance helps children and teenagers work through emotional concerns, relationships, school challenges, and questions about themselves.
- youth culturenoun
- Shared styles, interests, language, and values distinguish adolescents and young adults as cultural groups.
- Yule’s Qnoun
- This statistic measures association between two variables with two categories each, ranging from negative one to positive one.
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