Related Experiment Video
Updated: Jan 28, 2026
07:06
Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
3.2K
Spherical equivalent and visual acuity outcomes in the randomized, double-blind, placebo-controlled trial of bendazol
Yan Hei Yannis Chan1, Sunny Chi Lik Au2
1Undergraduate Division, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
Photodiagnosis and Photodynamic Therapy
|January 26, 2026
Abstract
No abstract available in PubMed .
Related Concept Videos
02:07Blind Procedures
13.4K
Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
13.4K
01:54The Placebo Effect
6.8K
The placebo effect occurs when people's expectations or beliefs influence or determine their experience in a given situation. In other words, simply expecting something to happen can actually make it happen.
6.8K
02:44Atomic Orbitals
43.7K
An atomic orbital represents the three-dimensional regions in an atom where an electron has the highest probability to reside. The radial distribution function indicates the total probability of finding an electron within the thin shell at a distance r from the nucleus. The atomic orbitals have distinct shapes which are determined by l, the angular momentum quantum number. The orbitals are often drawn with a boundary surface, enclosing densest regions of the cloud.
43.7K
01:23Spherical Coordinates
15.8K
Spherical coordinate systems are preferred over Cartesian, polar, or cylindrical coordinates for systems with spherical symmetry. For example, to describe the surface of a sphere, Cartesian coordinates require all three coordinates. On the other hand, the spherical coordinate system requires only one parameter: the sphere's radius. As a result, the complicated mathematical calculations become simple. Spherical coordinates are used in science and engineering applications like electric and...
15.8K
03:35Hybridization of Atomic Orbitals II
48.6K
sp3d and sp3d 2 Hybridization
48.6K
01:11Blinding
3.9K
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
3.9K