Now I'm confused. Are you going to try to proceed w/o any IRB (free-standing or institutional)? No peer-reviewed journal will accept this work if you have not obtained the proper documentation for a legitimate study (which as we all know, is what an IRB requires). Peer-reviewed publications may not explicitly ask (I can't remember what questions submission paperwork asks), but it is subsumed in your research. And most studies have a one-liner that says where subjects were recruited and states that informed consent was obtained (those informed consent docs are among the materials reviewed by the IRBs). It is unethical to collect study data otherwise. If your PI wants to continue and it is not worth finding an IRB for such a small scale study, then don't plan on submitting anywhere reputable...target Psychology Today. Their standards are so low, they'll accept anything that mentions 'psychology.'
I'm not making jokes (well, I welcome any chance to bust on Psychology Today), just suggesting to begin your research experience with ethics and integrity in mind, it's the only way to conduct research...and don't be involved in shoddy research - it becomes garbage in, garbage out...and you will not want your name and future reputation attached to garbage research (not assuming you would anyway).
Go here:
http://phrp.nihtraining.com/users/login.php Register for free, take the test, print the little certificate. Most IRBs require anyone conducting research to get this certificate as part of the process. Regardless, it's good to know these things if this is your field of study.