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[11] [12] Anchoring bias includes or involves the following: Common source bias, the tendency to combine or compare research studies from the same source, or from sources that use the same methodologies or data. [13] Conservatism bias, the tendency to insufficiently revise one's belief when presented with new evidence. [5] [14] [15]
In statistical quality control, the individual/moving-range chart is a type of control chart used to monitor variables data from a business or industrial process for which it is impractical to use rational subgroups. [1] The chart is necessary in the following situations: [2]: 231
In 1996, Elton, Gruber, and Blake showed that survivorship bias is larger in the small-fund sector than in large mutual funds (presumably because small funds have a high probability of folding). [8] They estimate the size of the bias across the U.S. mutual fund industry as 0.9% per annum, where the bias is defined and measured as:
As with the small multiple chart, each panel uses the same underlying two-dimensional space, but in this case that is a geographic space. Typically, the variables being mapped are of a similar type, such as types of agricultural products, so that the same strategy of map symbol can be used on each panel, enabling rapid comparison between the maps.
Caliper matching: comparison units within a certain width of the propensity score of the treated units get matched, where the width is generally a fraction of the standard deviation of the propensity score; Radius matching: all matches within a particular radius are used -- and reused between treatment units.
Otero sees the Media Bias Chart as an "anchor" that counteracts political polarization in news media, and aspires for Ad Fontes to become a "Consumer Reports for media ratings". [5] She compared low-quality news sources to junk food, [12] and described sources with extreme bias as "very toxic and damaging to the country". [4]
This somewhat qualitative measurement can be more objectively measured by the relative price strength rating of the stock, designed to measure the price performance of a stock over the past 12 months in comparison to the rest of the market based on the S&P 500 (or the S&P/TSX Composite Index for Canadian stock listings) over a set period of time.
AllSides Technologies Inc. is an American company that estimates the perceived political bias of content on online written news outlets. AllSides presents different versions of similar news stories from sources it rates as being on the political right, left, and center, with a mission to show readers news outside their filter bubble and expose media bias. [2]