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Related Concept Videos

Language Development01:22

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Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
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Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
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Socioemotional Development during Infancy01:30

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Socio-emotional development in infancy is primarily shaped by early emotional responses and social connections, with temperament playing a central role. Temperament refers to the consistent patterns in an individual's emotional and behavioral responses, observable even in infancy. By examining temperament, researchers can better understand an infant's unique ways of interacting with the world, influencing subsequent personality and socio-emotional growth.
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Despite the strong genetic influence on traits like intelligence, environmental factors significantly shape outcomes. For example, while over 90% of height variation is due to genetic differences, environmental factors such as nutrition also have a notable impact. Similarly, for intelligence, changes in a child's surroundings can significantly alter their IQ. Research shows that enriched environments boost children's academic success and help them develop key cognitive skills. Children...
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Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
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Early language interventions show lasting effects for children with language impairments, particularly for prelinguistic skills. Durability is influenced by intervention type and study quality, not just time post-treatment.

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Area of Science:

  • Speech and Language Pathology
  • Developmental Psychology
  • Evidence-Based Practice

Background:

  • Early language and communication interventions are crucial for children with language impairments.
  • Immediate post-treatment effectiveness is established, but long-term durability requires investigation.

Purpose of the Study:

  • To systematically review and meta-analyze the durability of early language intervention effects.
  • To examine if durability relates to outcome type, etiology, implementer, effect magnitude, follow-up time, or study bias.

Main Methods:

  • Systematic search of experimental and quasi-experimental studies.
  • Inclusion of studies with follow-up at least 3 months post-intervention for children aged 0-5 with language impairments.
  • Multilevel meta-analysis with robust variance estimation to assess effect sizes and moderators.

Main Results:

  • Twenty studies with 129 long-term effect sizes were analyzed.
  • Overall average effect size was small but significant (g = .22).
  • Prelinguistic outcomes (g = .36) showed larger effect sizes than linguistic outcomes (g = .14).

Conclusions:

  • Early language intervention effects persist for several months.
  • Further research needs standardized long-term outcome measurement and consistent reporting.
  • Study quality and specific outcome types influence intervention durability.