| Hu Chunyan,Hu Liangping,How to use analysis of variance correctly——an analysis of variance for the univariate quantitative data collected from the factorial design[J].SICHUAN MENTAL HEALTH,2022,35(3):207-211 |
| How to use analysis of variance correctly——an analysis of variance for the univariate quantitative data collected from the factorial design |
DOI：10.11886/scjsws20220510005 |
| English keywords:Factorial design Experimental point Optimal level combination Analysis of varianc F distribution |
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| The purpose of this paper was to introduce the factorial design and its quantitative data analysis of variance and the SAS implementation. Factorial design could not only present the main effect magnitude of all experimental factors， but also comprehensively reflected the size of each-order interaction effect among multiple factors. However， this design required a large sample size. This paper introduced the calculation formulas of the analysis of variance for quantitative data with two-factor factorial design， and realized the analysis of variance for quantitative data with two-factor and three-factor factorial design through two examples with the help of SAS software， and multiple comparisons of interaction effects were also performed. |
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