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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...
Bioavailability Study Design: Healthy Subjects Versus Patients01:15

Bioavailability Study Design: Healthy Subjects Versus Patients

Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...
What is an Experiment?01:12

What is an Experiment?

An experiment is a planned activity carried out under controlled conditions. The purpose of an experiment is to investigate the relationship between two variables. When one variable causes change in another, we call the first variable the explanatory or independent variable. The affected variable is called the response or dependent variable. In a randomized experiment, the researcher manipulates values of the explanatory variable and measures the resulting changes in the response variable. The...
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...
Study Designs in Epidemiology01:20

Study Designs in Epidemiology

Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and case-control studies.
Models of Health Promotion and Illness Prevention II01:18

Models of Health Promotion and Illness Prevention II

The person's health status fluctuates continually, varying from being in good health to becoming ill and returning to being healthy. To understand the concept of illness prevention, there are two models. First, the health-illness continuum model is a graphic representation of an individual's wellness. It states that a person is considered healthy in the absence of physical disease and the presence of good emotional health.
The agent-host-environment model states that disease results from...

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Related Experiment Video

Updated: May 15, 2026

Electroencephalographic, Heart Rate, and Galvanic Skin Response Assessment for an Advertising Perception Study: Application to Antismoking Public Service Announcements
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Testing the Long-Term Effects of the Go Sun Smart Worksite Health Communication Campaign: A Group-Randomized

Peter A Andersen1, David B Buller2, Jenifer H Voeks3

  • 1School of Communication, San Diego State University, San Diego, CA 92182-4560.

The Journal of Communication
|May 14, 2026
PubMed
Summary

The Go Sun Smart campaign effectively promoted sun safety behaviors among ski resort employees long-term. Workplace sun protection programs are recommended for sustained positive health outcomes.

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Published on: December 1, 2023

Area of Science:

  • Public Health
  • Health Communication
  • Occupational Health

Background:

  • Sun exposure poses risks, including sunburn and long-term skin damage.
  • Workplace interventions can be effective in promoting health behaviors.
  • Health communication campaigns require evaluation for long-term impact.

Purpose of the Study:

  • To assess the long-term effectiveness of the Go Sun Smart (GSS) campaign on employee sun safety.
  • To evaluate sustained behavioral changes and awareness following a workplace health intervention.
  • To determine the impact of GSS on sunburning incidents and sun safety practices.

Main Methods:

  • A pair-matched group-randomized pretest-posttest controlled design was employed.
  • 1,463 employees from 26 ski areas participated, with follow-up surveys.
  • Hierarchical linear modeling analyzed data from intervention and control groups.

Main Results:

  • Employees at intervention ski areas reported significantly less sunburning.
  • Sustained positive effects included increased sun safety behaviors and program awareness.
  • GSS participants engaged in more home-based discussions about sun safety.

Conclusions:

  • The Go Sun Smart campaign demonstrated lasting positive effects on employee sun safety.
  • Workplace sun protection programs are recommended, emphasizing high-fidelity implementation for maximum benefit.
  • Despite limitations, the study design enhances the validity and generalizability of findings on workplace health interventions.