Essay --

Part I1.How many independent variables are in a 4X6 divisorial rule? How many conditions are in this design?There are 4 and 6 independent variables, and 24 conditions for this design.2.What is the difference between a cell lowly and the means utilise to interpret a main effect?The main effect is used to interpret the differences in means over levels of one factor collapsed over levels of the other factor (Jackson, 2012). However, the cell mean is used to interpret is used with models that include multilateral interactions. In addition, a cell means is used with mixed procedures (Jackson, 2012).3.What is the difference between a complete factorial design and an incomplete factorial design?The complete factorial design consists of either combinations of all factor-levels of each factor and it can estimate all factors and their interactions (Collins, Dziak, & Li, 2009 Jackson, 2012). In addition, the fixed-level designs may be calculated (Collins, Dziak, & Li, 2009). For examp le, a two-level factor, a three-level factor, and a four-level factor has 2 x 3 x 4 = 24 runs.The incomplete factorial design some of the cells are intentionally left empty, where participants will not be designate to those combinations of factors. It is most likely to be used in a controlled group (Trochim, 2000 Jackson, 2012). Therefore, the research can evaluate relative treatment comparisons within a wholeness study and be able to determine the effect of different treatment combinations (Trochim, 2000 Jackson, 2012).4.Explain the difference between a two-way ANOVA and a three-way ANOVA?A one-way ANOVA is used when the research wants to evaluate the differences between variables (Kirk, 1995 Jackson, 2012). For example, a study may evaluate the dif... ...her factor (Trochim & Donnelly, 2008).How does a covariate trim down noise?An ANCOVA design is a noise-reducing experimental design can adjusts posttest scores for variability on the covariate pretest. Covariates are the v ariables you adjust for, where the effect is going to be removed. all continuous variable can be used as the covariate however, the pretest is usually best (Trochim & Donnelly, 2008). Describe and explain three trade-offs familiarize in experiments.Schank and Koehnle (2009) argued that the three trade-offs present in experiments are the inevitable in any decisions including blocking or to standardize conditions in experiments. The interpretation of multiple tests of a hypothesis is clarified. Experiments with large samples kick up the possibility of small, but statistically significant, biases even after randomization of treatments (Wiley, 2009).