Small Aircraft; Low Wing; 1 Eng; Retractable Gear
Flight Crew Private
Flight Crew Last 90 Days 30.1; Flight Crew Total 381.3; Flight Crew Type 211
Communication Breakdown; Situational Awareness
Conflict NMAC
Flight Crew Executed Go Around / Missed Approach; Flight Crew Took Evasive Action
Human Factors
I was doing an IFR XC for my instrument rating and descending to land almost at the DH altitude but still under the hood.  MY safety pilot excitedly yelled for full power which startled me; so I looked up.  I saw a twin-engine aircraft coming directly at us at about the same altitude.  The other AC then banked left and climbed to avoid us.  About the time they passed by and with my engine now at full power; the safety pilot banked left and climbed.  I don't think he pushed the yoke to descend as we were already relatively close to the ground.Not sure if it was a turboprop or other twin as I only saw it a couple of seconds at most and was obviously trying to process things.I announced our position and that we were on the ILS5 approach at somewhere around 5-7 miles out and again at 1 mile or so out.  I recall two other aircraft calling their position on the CTAF but never heard anyone say they were taxiing to; landing or taking off on [Runway] 23 so I'm not sure whether they were landing or taking off.With me being a student I was focused on flying the approach correctly under the hood so I'm not privy to what the safety pilot saw and really can't say how close we were to the other AC as I don't have radar.
GA student reported that during an instrument training flight as they approached the AND airport Decision Height; the safety pilot saw another aircraft flying directly at them at approximately the same altitude. Both aircraft maneuvered away from each other.