I need help writing a research question and choosing which SPSS test to run. I'm not sure of the difference between relationship research and effect

I need help writing a research question and choosing which SPSS test to run. I'm not sure of the difference between relationship research and effect research. Which tests would you run? I would've chosen ANOVA for both, but I feel I need a different test based on relationship or effect.

A relationship research question involving gender, GPA, and GRE scores.

An effect research question involving gender, GRE score, and degree completion frequency.