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group effect

a research finding specific to the group of individuals to which a participant belongs. A group effect could appear in an assigned subset, such as a treatment or intervention, or in a naturally occurring subset, such as age level or classroom. For example, a researcher might be interested in a group effect of a specific reading intervention, or in a group effect of book reading for students in the current decade who may be reading less than previous sets of students owing to more common use of the computer and television.

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Psychology term of the day

May 21st 2024

attachment theory

attachment theory

a theory that (a) postulates an evolutionarily advantageous need, especially in primates, to form close emotional bonds with significant others: specifically, a need for the young to maintain close proximity to and form bonds with their caregivers; and (b) characterizes the different types of relationships between human infants and caregivers. These relationships have been shown to affect the individual’s later emotional development and emotional stability. See also insecure attachment; secure attachment; Strange Situation. [originally developed by John Bowlby and later expanded by Mary D. Salter Ainsworth]