Tagged Questions

0
votes
0answers
104 views

Does SPSS give factor scores for mean subtracted variables?

From the Johnson's book, I can see the orthogonal factor model is as follows: $X-\mu=LF+\epsilon$ So if I use SPSS for extracting factor scores from a factor analysis of several variables, then am I ...
0
votes
0answers
42 views

How to estimate the out crosses rate in crops?

How to estimate the out crosses rate in crops? in have experiment included; main plot (1- seeds from open field 2- seeds from free pollinators cage 3-seeds from pollinator cage), sub plot (5 ...
2
votes
0answers
63 views

Making sense of a factor analysis application

I'm a biochem guy so the stats in this paper are giving me a real hard time. Kliman, RM, Irving, N, and Santiago, M. Selection Conflicts, Gene Expression, and Codon Usage Trends in Yeast. J Mol ...
21
votes
2answers
349 views

What is the relationship between independent component analysis and factor analysis?

I am new to Independent Component Analysis (ICA) and have just a rudimentary understanding of the the method. It seems to me that ICA is similar to Factor Analysis (FA) with one exception: ICA assumes ...
0
votes
1answer
153 views

Which statistical test should I use when there are multiple latent predictors and multiple latent outcomes?

I am doing my research on Personality (the big five factors) and if personality can predict commitment to an organization. However, commitment is composed of three dimensions. What is the best ...
1
vote
1answer
100 views

Should I remove a variable from a PCA analysis if it is the only variable to load on a component?

I have four continuous variables drawn from secondary data of companies. The combination of these four variable represent my dependent variable. These four variables are real values. They are just ...
1
vote
1answer
226 views

Problem with Developing a Model for an Exploratory Study (PCA EFA)

*Background:* I am doing an academic study that is more exploratory in nature (my advisor did not want me to develop any hypothesis). So I read books and conducted interviews to try and gather a large ...
2
votes
3answers
338 views

How to perform factor and canonical correlation analysis on correlation matrices in R?

I know how to do factor and canonical correlation analysis on raw data in R. But sometimes we only having correlation matrices for the data. I'd like to know any R functions which can take correlation ...
3
votes
3answers
655 views

Can I delete excessive number of multivariate outliers, like over 10% in sample?

I have a dataset with around 9000 cases, I'm running a factor analysis and I have found that 1100 cases are identified as being a multivariate outlier. Is it alright for me to got ahead and delete ...
3
votes
1answer
266 views

What kind of statistical analysis should I do to aggregate these values?

I'm trying to make sense of some data and get statistical results on them. What I have is the following: ...