Explain chunking, recency effect, and primacy effect in regards to short-term memory when more than nine items of unrehearsed information are taken in.

Chunking increases the capacity of short-term memory by recoding information into more meaningful units. When large amounts of information are given, short-term memory usually remembers the first set of unrehearsed information (primacy) or the last set of unrehearsed information (recency), but few things from the middle.