Number of factor levels is not equal to 2

joshuaseelen

Hi,

I am analyzing data in JASP for a research project and I'm trying to run an independent samples t-test, but I get the error "number of factor levels is not equal to 2". How can I best solve this? Is there something wrong with my data file? In column 1 I have 25 bee species, in the second the number of that bee species in a certain area and in the third the same for another area. How can I best tackle this, I can't figure it out myself. My statistical skills are not experienced, hope someone can help me!

Thanks in advance!

Sincerely,

Joshua Seelen

EJ

Hi Joshua,

From your description it seems you want to conduct a *paired* samples t-test (each species is tallied in two areas, and I suppose you want to test whether the one area has more bees than another area?). So then you simply select the paired samples t-test option and select area1 and area2.

I am not sure what you'd like to study, but regardless it may be worthwhile to check out the "raincloud plot" provided in the t-test GUI.

Cheers,

E.J.