Intern applicants have rated the interview process at GE with 2 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 66.7% positive. This is according to Glassdoor user ratings.
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I have sent my application and it took a while until they got back to me (1 month) to set up a 1:1 interview at their office. In the interview, 2 seniors asked me standard questions and some based on my dissertation thesis.
The hiring process is completely behavioral. I would recommend attempting to find documentation online or through a University resource center that has tips for this style.