Results 181 to 190 of about 6,527,975 (215)
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British Journal of Nursing, 1996
This article discusses randomized clinical trials, double blind designs and factorial designs and describes and explains their main requirements. It is shown that the randomized clinical trial is not a different experimental design, but is one that reflects the purpose for and the scale on which the post-test only or pretest/post-test designs are ...
R, Behi, M, Nolan
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This article discusses randomized clinical trials, double blind designs and factorial designs and describes and explains their main requirements. It is shown that the randomized clinical trial is not a different experimental design, but is one that reflects the purpose for and the scale on which the post-test only or pretest/post-test designs are ...
R, Behi, M, Nolan
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Journal of the American Academy of Child & Adolescent Psychiatry, 2000
In earlier columns, we introduced 2 types of independent variables, active and attribute. The randomized experimental and quasi-experimental approaches both have an active or manipulated independent variable, which has 2 or more values, called levels. The dependent variable is the outcome measure or criterion of the study.
G A, Morgan, J A, Gliner, R J, Harmon
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In earlier columns, we introduced 2 types of independent variables, active and attribute. The randomized experimental and quasi-experimental approaches both have an active or manipulated independent variable, which has 2 or more values, called levels. The dependent variable is the outcome measure or criterion of the study.
G A, Morgan, J A, Gliner, R J, Harmon
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Randomized Experimental Designs
Journal of the American Academy of Child & Adolescent Psychiatry, 2000In the last column, we discussed quasi-experimental designs and some of their weaknesses. Remember that quasi- and randomized experimental designs both have an active or manipulated independent variable, but in randomized designs the participants are randomly assigned to the experimental and control groups.
G A, Morgan, J A, Gliner, R J, Harmon
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Statistics, 1995 Factorial experimental designs
International Journal of Injury Control and Safety Promotion, 2016Intervention studies are typically performed as ‘experiments,’ in the sense that a single ‘factor’ is allowed to vary while the others are held constant or accounted for in the analyses.
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Some Systematic Experimental Designs
Biometrika, 1951Consider the following experiment. It is required to compare the effect in processing of a number of treatments applied to wool. The wool is divided into lots as alike as possible and the lots are numbered in random order. In week 1 lot 1 is processed with a certain treatment. In week 2 lot 2 is processed with, in general, a different treatment. And so
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