Do you work in R as well as SPSS?
Yes, and in Stata and Excel. Tell us what you are using and what your department expects, and we will work in that rather than pushing you toward a tool you then have to maintain alone.
This comes up on Quantitative Data Analysis Support, where it is answered in the context of the work itself.
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Send the draft, the rubric or the score report with it. You get a real answer and a price before you commit to anything.