Related Experiment Video
Updated: May 20, 2026
10:38
Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies
Published on: January 16, 2019
A practitioner's guide to developing critical appraisal skills: observational studies
Debora C Matthews1, Philippe P Hujoel
1Department of Dental Clinical Sciences, Faculty of Dentistry, Dalhousie University, 5981 University Ave., P.O. Box 15000, Halifax, Nova Scotia B3H 4R2, Canada. dmatthew@dal.ca
Journal of the American Dental Association (1939)
|July 4, 2012
Summary
Observational studies track disease patterns and correlations. However, their findings require caution, especially for advising healthy individuals, as they may not reliably inform clinical decisions.
Area of Science:
- Epidemiology
- Public Health Research Methods
Background:
- Observational studies document disease distribution and explore exposure-outcome correlations.
- Interpreting correlations as causal can be misleading for advising healthy populations.
- This review introduces observational study designs, highlighting their strengths and weaknesses.
Purpose of the Study:
- To provide an overview of observational study designs.
- To discuss the strengths and limitations of observational research.
Main Methods:
- Review of observational study designs.
- Analysis of strengths and weaknesses of different designs.
Main Results:
- Observational studies are valuable for hypothesis generation and guiding clinical research.
- Correlation does not imply causation, necessitating careful interpretation.
- Potential for harm exists when observational findings are applied without critical evaluation.
Conclusions:
- Observational findings can inform, but rarely form the sole basis for, clinical decision-making.
- Extreme caution is advised when applying observational data to the care of healthy individuals.
- Reliability for clinical practice is often limited, especially for preventative advice.
Related Concept Videos
01:11Observational 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...
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...
02:30Naturalistic Observations
If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
01:25Critical Thinking II
Critical thinking is a cognitive process with several attributes. The attributes of critical thinking include the following:
01:13Patient-centered Care
Patient-centered care involves delivering care beyond inpatient hospitalization. Reflective practice can enhance a patient-centered approach. Reflective practice is a process of reasoning that considers all aspects of the present situation, including practicalities, learning from personal practice, and consideration of patient needs. Patients appreciate care decisions made while considering their input. Involving the patient in their care provides the patient with a sense of contribution rather...
01:23Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast, controlled...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast, controlled...
01:20Lazarus's Cognitive Appraisal Theory
Cognitive psychologist Richard Lazarus proposed the cognitive-mediational theory of emotions, which emphasizes how individuals' assessments of stressors significantly affect their experience of stress. According to Lazarus, the stress response is determined by a two-step appraisal process: primary appraisal and secondary appraisal. These cognitive appraisals help individuals evaluate the potential impact of a stressor and determine the adequacy of their coping resources.
Primary Appraisal:...
Primary Appraisal:...