Results 231 to 240 of about 365,966 (282)
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Infection Control & Hospital Epidemiology, 1992
In most situations in which an experimental treatment or procedure is to be compared with a standard treatment or procedure, the null hypothesis to be tested states that the two procedures are equally effective. The alternative hypothesis is likely to be one-sided and to state that the experimental procedure is better than the standard.
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In most situations in which an experimental treatment or procedure is to be compared with a standard treatment or procedure, the null hypothesis to be tested states that the two procedures are equally effective. The alternative hypothesis is likely to be one-sided and to state that the experimental procedure is better than the standard.
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Memory & Cognition, 1995
This article concerns acceptance of the null hypothesis that one variable has no effect on another. Despite frequent opinions to the contrary, this null hypothesis can be correct in some situations. Appropriate criteria for accepting the null hypothesis are (1) that the null hypothesis is possible; (2) that the results are consistent with the null ...
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This article concerns acceptance of the null hypothesis that one variable has no effect on another. Despite frequent opinions to the contrary, this null hypothesis can be correct in some situations. Appropriate criteria for accepting the null hypothesis are (1) that the null hypothesis is possible; (2) that the results are consistent with the null ...
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American Journal of Orthodontics and Dentofacial Orthopedics, 2013
Robert W F, Vitral +2 more
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Robert W F, Vitral +2 more
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2009
Statistical term for assuming no difference between treatments; when rejecting Ho there is still a risk of committing an alpha error, when accepting Ho a beta error can occur.
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Statistical term for assuming no difference between treatments; when rejecting Ho there is still a risk of committing an alpha error, when accepting Ho a beta error can occur.
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2019
Null hypothesis testing applies to confirmatory research, where substantive hypotheses are tested. The preferred approach is to construct a confidence interval (CI) because a CI simultaneously assesses the precision of a parameter estimate and tests a null hypothesis on the parameter. Two- and one-sided CIs and two- and one-tailed tests are considered.
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Null hypothesis testing applies to confirmatory research, where substantive hypotheses are tested. The preferred approach is to construct a confidence interval (CI) because a CI simultaneously assesses the precision of a parameter estimate and tests a null hypothesis on the parameter. Two- and one-sided CIs and two- and one-tailed tests are considered.
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Hominin cognition: The null hypothesis
Behavioral and Brain SciencesAbstract The target article explores material culture datasets from three African forager groups. After demonstrating that these modern, contemporary human populations would leave scant evidence of symbolic behaviour or material complexity, it cautioned against using material culture as a barometer for human cognition in the deep past.
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