Related Concept Videos
03:20The Stanford Prison Experiment
24.9K
The famous and controversial Stanford Prison Experiment, conducted by social psychologist Philip Zimbardo and his colleagues at Stanford University, demonstrated the power of social roles, social norms, and scripts.
24.9K
02:07Blind Procedures
13.7K
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...
13.7K
01:11Blinding
4.0K
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.
4.0K
01:24Testing a Claim about Population Proportion
4.0K
A complete procedure for testing a claim about a population proportion is provided here.
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...
4.0K
01:14Decision Making: Traditional Method
5.6K
The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using the sample data, and interpreting these values.
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
5.6K
01:17Hypothesis: Accept or Fail to Reject?
29.7K
The outcome of any hypothesis testing leads to rejecting or not rejecting the null hypothesis. This decision is taken based on the analysis of the data, an appropriate test statistic, an appropriate confidence level, the critical values, and P-values. However, when the evidence suggests that the null hypothesis cannot be rejected, is it right to say, 'Accept' the null hypothesis?
There are two ways to indicate that the null hypothesis is not rejected. 'Accept' the null...
There are two ways to indicate that the null hypothesis is not rejected. 'Accept' the null...
29.7K
You might also read
Related Articles
Articles linked to this work by shared authors, journal, and citation graph.
Sort by
Same author
Evaluating the Role of Machine Learning and Artificial Intelligence in Oncology Drug Repurposing Efforts.
Journal of research in pharmacy practice·2025
Same author
A horizon scanning exercise to explore retention policies for international and minoritised NHS Trust staff in England: what are the current pledges and where are the gaps?
BMC health services research·2025
Same author
Could dark energy be changing over time?
Proceedings of the National Academy of Sciences of the United States of America·2025
Same author
Correction in <i>Science</i> rekindles debate over Microsoft's quantum computing research.
Science (New York, N.Y.)·2025
Same author
Astronomers race to study third known interstellar interloper.
Science (New York, N.Y.)·2025
Same author
Telescopes team up to probe distant worlds.
Proceedings of the National Academy of Sciences of the United States of America·2025
Same journal
Erratum for the Report "Covalently bonded single-molecule junctions with stable and reversible photoswitched conductivity" by C. Jia <i>et al</i>.
Science (New York, N.Y.)·2026
Related Experiment Video
Updated: Feb 27, 2026
06:19
The Mouse Forced Swim Test
Published on: January 29, 2012
108.0K
Trial balloons
1Adam Mann is a journalist based in Oakland, California.
Science (New York, N.Y.)
|June 24, 2017
Summary
No abstract available in PubMed .
