experimental group

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experimental group


experimental condition

the group which receives the INDEPENDENT VARIABLE in an experiment. Typically, in the EXPERIMENTAL METHOD, the EXPERIMENTAL HYPOTHESIS is tested by treating the experimental group with the independent variable to be investigated, and comparing any resultant effect (measured by the DEPENDENT VARIABLE) with any change observed in the CONTROL GROUP. If a statistically significant difference is found between the dependent measures in experimental and control groups, then the experimental hypothesis is upheld. If there is no statistically significant difference, then the NULL HYPOTHESIS is upheld.
Collins Dictionary of Sociology, 3rd ed. © HarperCollins Publishers 2000
References in periodicals archive ?
In the experimental condition, no significant "Time" effect was observed for maximal power exerted during SJ.
Each animal underwent both control and experimental conditions; we randomly selected half to experience control conditions first, and the other half experienced experimental conditions first.
We then performed a 2 (experimental condition: explicit rejection, ambiguous rejection) x 2 (type of words: social rejection words, nonsocial negative words) x 2 (probe position: congruent, incongruent) analysis of variance.
Explorative studies indicated that a protocol duration of 8-minutes was sufficient under the selected task parameters to induce fatigue under the four experimental conditions. Additionally, results by Maton (1981) showed that as soon as a given level of force was maintained, muscular activity began to change, implying that the process of muscle fatigue from any exertion can be well established early in the protocol.
Results of a 2 (type of stimulus: positive vs negative) x 3 (experimental condition: unimodal vs congruent vs incongruent) mixed design MANOVA showed neither a main effect of hedonic valence, Pillai's trace = .048, F(2, 26) = 0.66,p = .053, nor a main effect of arousal experimental condition Pillai's trace = .764, F(4, 52) = 1.83, p = .129.
Therefore, in any resulting solution there will be a certain amount of valid clusters (i.e., clusters that contain at least one item belonging to each experimental condition), and a certain amount of invalid clusters (i.e., clusters that do not allow researchers to select at least one item for each experimental condition).
An ANOVA for visuospatial ability x experimental condition was performed to verify a similar distribution of visuospatial ability between experimental groups.
Here, we developed two different experimental conditions. One was simple symmetric TSP.
Therefore, we propose here a systematic analysis through PARAFAC and HC strategies of a series of SFC columns in a representative set of experimental conditions to unravel the role of three interacting parameters (temperature, pressure, and gradient of organic modifier) with a representative set of drugs (acidic, basic, and neutral).
Finally, children in the experimental condition were asked three questions about team "performance": "Which team do you think had the most fun these weeks?"; "which team do you think got in the most trouble these weeks?"; "which team do you think deserved to win the competion [sic]?" Children's responses were rated 1 (favouring the ingroup) or 0 (favouring the outgroup) so that each child's score on his/her team's performance ranged from 0 to 3.
A 3 (experimental condition) x 2 (participant sex) log-linear analysis was performed, with the frequency of participants who agreed to give a late note as the dependent variable.

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