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Welcome to Fairfax Underground, a project site designed to improve communication among residents of Fairfax County, VA. Feel free to post anything Northern Virginia residents would find interesting.
Why you shouldn't believe most psych studies
Posted by:
Psycho Mumbo Jumbo
()
Date: August 28, 2015 01:08AM
Study delivers bleak verdict on validity of psychology experiment results
Of 100 studies published in top-ranking journals in 2008, 75% of social psychology experiments and half of cognitive studies failed the replication test
Ian Sample Science editor
Thursday 27 August 2015 14.00 EDT
A major investigation into scores of claims made in psychology research journals has delivered a bleak verdict on the state of the science.
An international team of experts repeated 100 experiments published in top psychology journals and found that they could reproduce only 36% of original findings.
The study, which saw 270 scientists repeat experiments on five continents, was launched by psychologists in the US in response to rising concerns over the reliability of psychology research.
“There is no doubt that I would have loved for the effects to be more reproducible,” said Brian Nosek, a professor of psychology who led the study at the University of Virgina. “I am disappointed, in the sense that I think we can do better.”
“The key caution that an average reader should take away is any one study is not going to be the last word,” he added. “Science is a process of uncertainty reduction, and no one study is almost ever a definitive result on its own.”
All of the experiments the scientists repeated appeared in top ranking journals in 2008 and fell into two broad categories, namely cognitive and social psychology. Cognitive psychology is concerned with basic operations of the mind, and studies tend to look at areas such as perception, attention and memory. Social psychology looks at more social issues, such as self esteem, identity, prejudice and how people interact.
In the investigation, a whopping 75% of the social psychology experiments were not replicated, meaning that the originally reported findings vanished when other scientists repeated the experiments. Half of the cognitive psychology studies failed the same test. Details are published in the journal Science.
Even when scientists could replicate original findings, the sizes of the effects they found were on average half as big as reported first time around. That could be due to scientists leaving out data that undermined their hypotheses, and by journals accepting only the strongest claims for publication.
Of 100 studies published in top-ranking journals in 2008, 75% of social psychology experiments and half of cognitive studies failed the replication test
Ian Sample Science editor
Thursday 27 August 2015 14.00 EDT
A major investigation into scores of claims made in psychology research journals has delivered a bleak verdict on the state of the science.
An international team of experts repeated 100 experiments published in top psychology journals and found that they could reproduce only 36% of original findings.
The study, which saw 270 scientists repeat experiments on five continents, was launched by psychologists in the US in response to rising concerns over the reliability of psychology research.
“There is no doubt that I would have loved for the effects to be more reproducible,” said Brian Nosek, a professor of psychology who led the study at the University of Virgina. “I am disappointed, in the sense that I think we can do better.”
“The key caution that an average reader should take away is any one study is not going to be the last word,” he added. “Science is a process of uncertainty reduction, and no one study is almost ever a definitive result on its own.”
All of the experiments the scientists repeated appeared in top ranking journals in 2008 and fell into two broad categories, namely cognitive and social psychology. Cognitive psychology is concerned with basic operations of the mind, and studies tend to look at areas such as perception, attention and memory. Social psychology looks at more social issues, such as self esteem, identity, prejudice and how people interact.
In the investigation, a whopping 75% of the social psychology experiments were not replicated, meaning that the originally reported findings vanished when other scientists repeated the experiments. Half of the cognitive psychology studies failed the same test. Details are published in the journal Science.
Even when scientists could replicate original findings, the sizes of the effects they found were on average half as big as reported first time around. That could be due to scientists leaving out data that undermined their hypotheses, and by journals accepting only the strongest claims for publication.
Re: Why you shouldn't believe most psych studies
Posted by:
thNCN
()
Date: August 28, 2015 07:54PM
because the reason you need a psych study is the Air Force is already doing a secret study on you
Re: Why you shouldn't believe most psych studies
Posted by:
Sociology
()
Date: August 28, 2015 08:49PM
Re: Why you shouldn't believe most psych studies
Posted by:
Ying Ko
()
Date: August 28, 2015 09:46PM
Bart: How would I go about creating a half-man, half-monkey type creature?
Mrs. Krabappel: I'm sorry, That would be playing God.
Bart: God shmod. I want my monkey man!
Mrs. Krabappel: I'm sorry, That would be playing God.
Bart: God shmod. I want my monkey man!