Recent content by Bach1750

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    Assumptions multiple regression violated

    Allright, then i didn't fully understand the video. Good for pointing that out. After looking for different options i found out that due to over-dispersion the negative binonimal distribution is best to use as an alternative to the Poisson regression. Do you agree? With a scatterplot for the...
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    Assumptions multiple regression violated

    Thanks for your response hlsmith, When i follow this video , and perform a One-Sample Kolmogorov-Smirnov Test. I find that the Asymp. Sig. (2-tailed)= 0,000, which means, according to the video, that the model doesn't follow a Poisson distribution. This means that the assumptions for performing...
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    Assumptions multiple regression violated

    Thanks for your response. I don't know which transformation method i need to use to normalize the data, so i think i will use the posion regression such as you suggested. One more question if you don't mind. For my second research question i wanted to add the variable mindfulness and...
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    Assumptions multiple regression violated

    Thanks for your response j58, The first question is possible to perform. However, after analysing the data i found that for the second question i stumble on the same problems as before. About half of the people who smoke marihuana answer that they only smoked one or two times in the last 30...
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    Assumptions multiple regression violated

    Hello, I’m writing my thesis about the question: is ruminative thinking an independent risk factor for predicting marihuana use (controlled for sex and depression). In this study there are 300 participants of which 60 used marihuana. To investigate this relationship I wanted to do a multiple...
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    Which statistical test to use

    Do you mean it as just two different approaches of analyzing the data. Or do you mean that they should follow each other up( first the regression analyses and then the repeated measures ANOVA)?
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    Which statistical test to use

    Thanks for your reply. Yes i should have explained it better. With a follow-up i meant repeated measures, each variable was measured twice. The data will be obtained through a questionnaire and the first measurements will start coming month. The plan is to have at least 200 participants. Do i...
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    Which statistical test to use

    Hello i have a question which statistical test to use Hello I really need some help which test to use. My research question is: Does mindfulness have a moderating influence on the relationship between rumination and marijuana use. The covariates that are used are depressive symptoms and sex...