Final answer:
The predominant type of coding in long-term memory is semantic encoding, which involves the encoding of words and their meaning. This type of encoding allows for a deeper level of processing and better recall compared to visual or acoustic encoding.
Step-by-step explanation:
The predominant type of coding in long-term memory is semantic. Semantic encoding involves the encoding of words and their meaning, which helps to build a stronger memory. According to studies conducted by psychologists, semantic encoding allows for a deeper level of processing and better recall compared to visual or acoustic encoding.