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In design of experiments, single-subject curriculum or single-case research design is a research design most often used in applied fields of psychology, education, and human behaviour in which the subject serves as his/her own control, rather than using another individual/group. Researchers use single-subject design because these designs are ...
A featured picture: Is of a high technical standard. It has good contrast, accurate exposure and neutral colour balance. It shows no significant compression artifacts, burned-out highlights, image noise ("graininess") or other processing anomalies. Examples of common technical problems can be found here.
For example: An image of a white-tailed eagle is useless if the bird appears as a speck in the sky. A biography should lead with a portrait photograph of the subject alone, not with other people. A suitable picture of a hammerhead shark would show its distinctive hammer-like head, to distinguish it from other sharks.
a design that is optimal for a given model using one of the . . . criteria is usually near-optimal for the same model with respect to the other criteria. — [ 16 ] Indeed, there are several classes of designs for which all the traditional optimality-criteria agree, according to the theory of "universal optimality" of Kiefer . [ 17 ]
The number of times "better" and "worse" appeared for each design is then displayed, but not summed up. A weighted decision matrix operates in the same way as the basic decision matrix but introduces the concept of weighting the criteria in order of importance. The more important the criterion the higher the weighting it should be given. [2]
Colors also have value; for example, yellow has a high value while blue and red have a low value. If you take a black and white picture of a colorful scene, all you are left with are the values. This important element of design, especially in painting and drawing, allows the artist to create the illusion of light through value contrast. [6]
There is no agreed definition of what constitutes a featured picture. However, Wikipedia featured picture candidates should not display any of the following technical flaws, unless there are strong mitigating reasons, such as historical significance or unique subject matter: see the featured picture criteria page for guidelines, and the WP:WIAFP/example subject matter gallery for examples of ...
An AB design is a two-part or phase design composed of a baseline ("A" phase) with no changes and a treatment or intervention ("B") phase. [4] [5] If there is a change then the treatment may be said to have had an effect. However, it is subject to many possible competing hypotheses, making strong conclusions difficult.