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    dummy regression - unequal sample sizes

    Hello, I am conducting a linear regression analysis in SPSS with different variables: - scale, - 2-level nominal, - 5-level nominal (dummy) The sample sizes / frequencies for three of the five levels of my last dummy variables are under the recommended 15% (namely 12,5%, 5% and 5%). Can I...
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    1 observation for control group & 3 obs for experimental group

    Hello, My background in statistics is quite limited, so I'm searching for help in order to choose which test I should use for my research. I am comparing some formant values between two groups: native speakers (control) and L2 learners (experimental group). The participants of the...