Search results
Results from the WOW.Com Content Network
The publication or nonpublication of research findings, depending on the nature and direction of the results. Although medical writers have acknowledged the problem of reporting biases for over a century, [12] it was not until the second half of the 20th century that researchers began to investigate the sources and size of the problem of reporting biases.
This is an accepted version of this page This is the latest accepted revision, reviewed on 29 January 2025. Think tank based in Washington, D.C., US Pew Research Center Parent institution The Pew Charitable Trusts Established July 1, 2004 ; 20 years ago (2004-07-01) Chair Robert Groves Head Michael Dimock Staff 160+ Budget Revenue: $36 million Expenses: $43 million (FYE June 2021) Address 1615 ...
In published academic research, publication bias occurs when the outcome of an experiment or research study biases the decision to publish or otherwise distribute it. Publishing only results that show a significant finding disturbs the balance of findings in favor of positive results. [ 1 ]
Even if a study meets the benchmark requirements for and , and is free of bias, there is still a 36% probability that a paper reporting a positive result will be incorrect; if the base probability of a true result is lower, then this will push the PPV lower too. Furthermore, there is strong evidence that the average statistical power of a study ...
It was established in 1975 and the journal is co-edited by Raya Muttarak and Joshua Wilde. The journal covers population studies, the relationships between population and economic, environmental, and social change, and related thinking on public policy. Content types are original research articles, commentaries, data and perspectives on ...
Population Studies is a triannual peer-reviewed academic journal covering demography. It was established in 1947 and is published by Taylor & Francis on behalf of the Population Investigation Committee. [1] The founding editor-in-chief was David Glass, who edited the journal from 1947 until his death in 1978. [2]
Self-selection bias or a volunteer bias in studies offer further threats to the validity of a study as these participants may have intrinsically different characteristics from the target population of the study. [19] Studies have shown that volunteers tend to come from a higher social standing than from a lower socio-economic background. [20]
The majority of the world's population lives in the Northern Hemisphere, which contributes toward a selection bias to a Northern Hemisphere perspective. This selection bias interacts with the other causes of systemic bias discussed above, which slants the selection to a pro-Northern Hemisphere perspective. [15]