There were quite a few of the then new-fangled, expensive and for the time high-tech digital reverb units available in the 80s, no studio was complete without at least a Lexicon unit or two. Layering reverb on reverb on top of a recording that was made in a naturally live room was pretty common as well.
Not forgetting that other newcomer to the studio, digital delays.
Using different reverbs on pretty much every microphone was common, it was the era of the gated reverb snare, booming toms with cathedral quantities of reverb and whooshing cymbals. Then shove the whole lot through another digital reverb just because.
So layer slap-back delays, short and long reverbs and, for the electro-pop quality, run everything through a 12-bit sampler/bitcrusher while you're at it.