________ allow for the statistical control and analysis of external variables. A)Preexperimental designs B)True experimental designs C)Quasi-experimental designs D)Statistical designs E)External variable designs
In a Pepsi project the researcher is interested in examining the effect of humor and the effect of various levels of brand information on advertising effectiveness.Three levels of humor (no humor, some humor, and high humor)are to be examined.Likewise, brand information is to be manipulated at three levels (low, medium, and high).The resulting table would be three rows (levels of information)by three columns (levels of humor), producing nine possible combinations or cells.The respondents would be randomly assigned to one of the nine cells.Respondents in each cell would receive a specific treatment combination.After exposure to a treatment combination, measures would be obtained on attitudes toward Pepsi advertising, brand, and the celebrity from respondents in each cell.To which category of design does this fall into? A)statistical regression design B)recombinant design C)static group design D)one-shot case study E)factorial design
Which of the following is NOT one of the three types of preexperimental designs? A)one-shot case study B)one-group pretest-posttest design C)random group D)static group E)All are preexperimental designs.
A preexperimental design in which a single group of test units is exposed to a treatment X and then a single measurement on the dependent variable is taken is called the ________. A)one-shot case study B)one-group pretest-posttest design C)random group D)static group E)X-file