Complex sentence: The more equivocal a message, the more cues and data needed to understand it, and media richness theory places communication mediums on a continuous scale that represents the richness of a medium and its ability to adequately communicate a complex message.
Split into simpler sentences: The more equivocal a message, the more cues and data needed to understand it. Media richness theory places communication media on a continuous scale based on their ability to adequately communicate a complex message.