partial correlation

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    How do I pose a hypothesis for a partial correlation?

    Hello everyone, in my thesis I have following hypothesis: 3a: Internet skills are positively correlated with the frequency of experiencing risks online 3b: The positive correlation between internet skills and the frequency of experiencing risks online is at least partly caused by the amount...
  2. V

    Calculating Partial Correlation from Published Work

    I am working on a meta-analysis, and I read in a published meta-analysis that the researchers calculated partial correlations controlling for two variables from published studies that did not actually report partial correlations--I'm guessing just the zero-order correlations matrix? I cannot...
  3. S

    Correlation with control group

    Hi! Sorry if this is a very basic question. If you have two groups: diseased and control. Both groups undergoes an intervention giving you two time points (before and after). Say you measure weight and glucose uptake at both time points, and want to correlate the change in these...
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    Correlation between scale vars controlling for nominal and ordinal vars - Which test?

    Hello all, I am not completely sure if the SPSS forum is the correct place to post this, so aplogises in advance if it's not. However, I am using SPSS to perform statistical analysis on my data, so at some point I will have to implement whichever test is needed in SPSS, hence my choice of...
  5. L

    Trying to find the correlation for 2 variable when controlling for 2 other variables

    I summed up some of the info we are already provided: N=50 Having job and exam performance--- r= -.3 Having job and and Studying--- r= -.4 Studying and exam scores--- r= .70 We are suppose to calculate the correlation between having a job and exam scores while controlling for the...
  6. I

    setting parameters in G*power for correlation tests

    Hello, everyone :) Need your help on how to set parameters in G*power... I am doing two very simple tests: one on pearson correlation between midterm scores and quiz another one on partial correlation between the same scores with motivation score as controlling variable. I need to run a...
  7. S

    Question hiow to sett up this partial correlation

    Hi All, I am confused how to set up the following partial corr. I want to partial out Years of Supervisory Experience from correlations of males and females on a measure. There some significant differences between the scores of males and females on some factors of the measure. In trying to find...
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    Non-Stationary Series and Standard Deviation

    Hello I am trying to model a non-stationary series for the purpose of outlier detection. The series is not labeled as normal and abnormal, which is a part of the problem. In the first step to model it, I figured out the seasonal dynamics which were at 1 min and 60 min. You can see the AC...
  9. S

    Partial correlations: What are the uses of them?

    They never seem to get reported in psychology research papers? I read some descriptions of them and they seem so useful in terms of statistical control. So Friends, If they are not used, are there any alternative approaches for statistical control? I would love you if you could list them...
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    Bootstrap analysis for partial correlations

    Hello, I was hoping someone could please help or direct me to another page that explains bootstrapping with partial correlations (i.e., correlations between two variables after controlling for a third variable)? For example, correlating posttest performance with another variable (e.g., SAT...
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    Doubt on partial correlation SPSS output

    Hello there, I'd need some help interpreting the output of a partial correlation analysis. The background is quite simple: I have two group of companies (that I recoded into a dummy). I want to see whether one of the two groups creates more 'sustainable value' (scalar), but I also want to...