Word frequency and memory: effects on absolute versus relative order memory and on item memory versus order memory

Area of Science:

• Cognitive Psychology
• Psycholinguistics
• Memory Research

Background:

• Word frequency influences memory recall, with low-frequency words aiding recognition and high-frequency words enhancing order memory.
• Previous research suggests distinct memory systems for item recognition and order judgments.
• The precise relationship between word frequency and different types of order memory requires further investigation.

Purpose of the Study:

• To investigate the nuanced relationship between word frequency and memory for word order.
• To differentiate the effects of word frequency on absolute versus relative order memory.
• To examine the dissociation between item memory enhancement and order memory disruption by word frequency.

Main Methods:

• Experiment 1 assessed absolute and relative order memory using low-frequency words.
• Experiment 2 compared recognition and absolute order memory across high-, low-, and very low-frequency words.
• Statistical analyses were employed to determine the significance of frequency effects on memory performance.

Main Results:

• Low-frequency words improved recognition memory compared to high-frequency words, but very low-frequency words did not show this enhancement.
• Both low- and very low-frequency words impaired absolute order memory.
• Experiment 1 indicated low-frequency words did not affect relative order memory, suggesting distinct processing for different order judgments.

Conclusions:

• The relationship between word frequency and item memory follows an inverted U-shaped function.
• The relationship between word frequency and absolute order memory is direct (lower frequency, worse memory).
• The item-enhancing effects of lower word frequency are dissociable from its order-disrupting effects.