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Related Concept Videos

Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

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Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due...
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The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
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Related Experiment Video

Updated: Mar 21, 2026

Author Spotlight: Learning Systematic Bronchoscopy in a Simulation-Base Setting
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Distributed practice. The more the merrier? A randomised bronchoscopy simulation study.

Anne Sofie Bjerrum1, Berit Eika2, Peder Charles3

  • 1Department of Respiratory Diseases, Aarhus University Hospital, Aarhus, Denmark; annbjerr@rm.dk.

Medical Education Online
|May 13, 2016
PubMed
Summary
This summary is machine-generated.

One-day distributed practice and weekly distributed practice showed no difference in effectiveness for learning bronchoscopy skills. This suggests that training schedules can be chosen based on clinical practice convenience.

Keywords:
bronchoscopycurriculum designmedical educationsimulationtraining methods

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Area of Science:

  • Medical Education
  • Surgical Simulation
  • Skills Acquisition

Background:

  • Distributed practice enhances skills acquisition more than massed training.
  • Optimal distributed practice schedules for bronchoscopy simulation training remain unclear.
  • This study compares one-day versus weekly distributed practice for learning bronchoscopy skills.

Purpose of the Study:

  • To compare the effectiveness of one-day distributed practice versus weekly distributed practice for acquiring bronchoscopy skills.
  • To determine the optimal simulation training schedule for bronchoscopy skills acquisition.

Main Methods:

  • Twenty physicians in training were randomized into one-day or weekly distributed practice groups.
  • Performance was evaluated using pre-test, post-test, and 4-week retention tests on a bronchoscopy simulator.
  • Repeated measures ANOVA was used to analyze the data.

Main Results:

  • No significant interaction between group and test was found for most measures.
  • No significant main effect of group was observed across all measures.
  • Learning curves did not differ significantly between the one-day and weekly distributed practice schedules.

Conclusions:

  • Both one-day and weekly distributed practice schedules are equally effective for bronchoscopy skills acquisition.
  • The selection of a bronchoscopy training schedule can be based on convenience for clinical practice.
  • Simulation training effectiveness is not significantly influenced by the frequency of distributed practice sessions.