Hi. I'm new and hope someone can help me. I work in soil microbiology field. I have my stats done, (know more about the inside of my car than of stats...) and then I get hundreds of pages to sift through before I do my report/article. My problem: How do I relate interaction in ANOVA in laymen's tearms? I do know it is when the different factors have a bigger influence than the sum of the total factors, but how to I explain it? The same with PCA - I know the different directions of the lines show positive (same direction) or negative (opposite direction) correlation with the longer lines the bigger correlation. But HOW do I explain that?