其他分类分析方法类似,不再赘述。 整合以上Tests of Between-Subjects Effects、Pairwise Comparisons和Estimates三个表格的结果,就可以得到关于不同受教育程度对政治兴趣主效应的全面分析。 4.4 交互作用对照(interaction contrast) 4.4.1 交互作用对照的SPSS操...
This chapter introduces the concepts of main and interaction effects and uses R and WinBUGS to fit the corresponding two-way ANOVA models. The chapter illustrates R's flexibility to conduct simulations to verify the effects of sampling variation on the parameter estimates. The one-way analysis of...
The Two-way ANOVA Two Way ANOVA The first two of those questions are questions about main effects of the respective independent variables. The third question is about the interaction effect, the effect of the two variables considered simultaneously. The Two-way ANOVA Two Way ANOVA Main effect A...
Technical note: the “estimated marginal means” are equal to the observed means in our previous means table because we tested the saturated model (consisting of all main and interaction effects as this is the default setting in UNIANOVA).Two...
The rows of the ANOVA table show the variability in the data that is divided by the source. Row (Source)Definition ColumnsVariability due to the column factor RowsVariability due to the row factor InteractionVariability due to the interaction of the row and column factors ...
Specify the significance level of two-way ANOVA. Descriptive StatisticsSpecify whether to compute descriptive statistics. Factor A Descriptive statistics for factor A. Factor B Descriptive statistics for factor B. Overall Descriptive statistics for all samples. Interaction This check box is ...
anova2requires that data be balanced, so each combination of model and factory must have the same number of cars. Two-way ANOVA tests hypotheses about the effects of factorsAandB, and their interaction on the response variabley. The hypotheses about the equality of the mean response for groups...
repsis the number of replicates for each combination of factor groups, which must be constant, indicating a balanced design. For unbalanced designs, useanovan. Theanova2function tests the main effects for column and row factors and their interaction effect. To test the interaction effect,repsmust...
These two questions are about what are called the Main Effects of the factors. The effect of each factor by itself is called a Main Effect. A Third Question There is a 3rd question, called the interaction question, one that is a little less obvious, but important nonetheless . ...
The Three Effects in a Two-Way ANOVA Let’s consider an example: What is the impact of gender, ethnicity, and their interaction on annual income? One of these will tell you if your first independent variable has a significant main effect on the DV A second will tell you if ...