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Related Concept Videos

Longitudinal Research02:20

Longitudinal Research

Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
Statistical Methods for Analyzing Epidemiological Data01:25

Statistical Methods for Analyzing Epidemiological Data

Epidemiological data primarily involves information on specific populations' occurrence, distribution, and determinants of health and diseases. This data is crucial for understanding disease patterns and impacts, aiding public health decision-making and disease prevention strategies. The analysis of epidemiological data employs various statistical methods to interpret health-related data effectively. Here are some commonly used methods:
Influence of Parents and Peers on Identity01:23

Influence of Parents and Peers on Identity

Adolescence is a pivotal period of identity formation, during which individuals begin to answer questions central to their sense of self, such as "Who am I?" and "Who do I hope to become?" Both parents and peers play critical roles in guiding adolescents through this complex developmental phase.
Parental Influence on Identity Development
Parents serve as primary guides and managers in an adolescent's life, offering support instrumental in decision-making and personal growth. This guiding role...
Longitudinal Studies01:26

Longitudinal Studies

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...
Observational Studies01:11

Observational Studies

Observational studies are a type of analytical study where researchers observe events without any interventions. In other words, the researcher does not influence the response variable or the experiment's outcome.
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One example of...
Cross-Sectional Research01:50

Cross-Sectional Research

In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...

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Related Experiment Video

Updated: Jun 20, 2026

Electroencephalographic, Heart Rate, and Galvanic Skin Response Assessment for an Advertising Perception Study: Application to Antismoking Public Service Announcements
06:39

Electroencephalographic, Heart Rate, and Galvanic Skin Response Assessment for an Advertising Perception Study: Application to Antismoking Public Service Announcements

Published on: August 28, 2017

Estimating peer effects in adolescent smoking behavior: a longitudinal analysis.

Mir M Ali1, Debra S Dwyer

  • 1Department of Economics, University of Toledo, Toledo 43606, Ohio, USA. mir.ali3@utoledo.edu

The Journal of Adolescent Health : Official Publication of the Society for Adolescent Medicine
|September 22, 2009
PubMed
Summary
This summary is machine-generated.

Peer influence significantly impacts adolescent smoking behavior, with effects persisting into adulthood. Even small increases in peer smoking prevalence raise individual smoking likelihood, highlighting the need for policies addressing long-lasting social network effects.

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Last Updated: Jun 20, 2026

Electroencephalographic, Heart Rate, and Galvanic Skin Response Assessment for an Advertising Perception Study: Application to Antismoking Public Service Announcements
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Electroencephalographic, Heart Rate, and Galvanic Skin Response Assessment for an Advertising Perception Study: Application to Antismoking Public Service Announcements

Published on: August 28, 2017

Impact Assessment of Repeated Exposure of Organotypic 3D Bronchial and Nasal Tissue Culture Models to Whole Cigarette Smoke
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Impact Assessment of Repeated Exposure of Organotypic 3D Bronchial and Nasal Tissue Culture Models to Whole Cigarette Smoke

Published on: February 12, 2015

Area of Science:

  • Social epidemiology
  • Adolescent health behaviors
  • Public health

Background:

  • Peer social networks play a critical role in shaping adolescent behaviors.
  • Understanding the persistence of peer influence into adulthood is crucial for public health interventions.

Purpose of the Study:

  • To quantify the impact of peer social networks on adolescent smoking.
  • To determine if peer influence on smoking persists as adolescents transition into adulthood.

Main Methods:

  • Utilized longitudinal data from a nationally representative adolescent sample.
  • Employed a multivariate structural model with school-level fixed effects to mitigate bias.
  • Measured peer influence using peer reports of smoking and nominations of close friends and classmates.

Main Results:

  • A 10% increase in smoking classmates raises smoking likelihood by over 3%.
  • A 10% increase in close friends' smoking rates increases smoking likelihood by 5%.
  • Adolescent peer influence on smoking persists into adulthood.

Conclusions:

  • Peer effects are significant determinants of smoking, even after controlling for biases.
  • These peer influences demonstrate long-lasting effects into adulthood.
  • Effective smoking reduction policies for adolescents must consider these persistent peer effects.