Final answer:
Skimming inhibits deep processing, which is necessary for transferring information into long-term memory and for the consolidation and storage of information.
Step-by-step explanation:
Skimming complex material yields little long-term retention because it inhibits deep processing. Deep processing is important for moving information into long-term memory, where it is consolidated and stored more permanently. Skimming only engages the material at a surface level and does not allow the individual to link new information to existing knowledge or to think about the information in a deeper, more meaningful way, which is necessary for long-term retention.