Related Experiment Video
Updated: May 9, 2026
08:08
Comparing the Frequency Effect Between the Lexical Decision and Naming Tasks in Chinese
Published on: April 1, 2016
Parametric effects of word frequency in memory for mixed frequency lists
Lynn J Lohnas1, Michael J Kahana
1Department of Psychology, University of Pennsylvania.
Summary
The word frequency paradox shows that word recall and recognition depend on word frequency. This study found a U-shaped curve for recall, with both low and high frequency words outperforming mid-frequency words.
Area of Science:
- Cognitive Psychology
- Psycholinguistics
Background:
- The word frequency paradox describes conflicting findings where low frequency words are better recognized, but high frequency words are better recalled.
- Previous research often compared distinct groups of low and high frequency words, potentially obscuring a broader relationship.
Purpose of the Study:
- To investigate the continuous functional relationship between word frequency and memory performance across a wide spectrum of word frequencies.
- To clarify the nature of the word frequency effect in episodic memory.
Main Methods:
- Participants completed memory tasks involving words spanning a broad range of frequencies.
- Memory performance (recall and recognition) was analyzed as a function of word frequency.
Main Results:
- A U-shaped relationship was observed for word recall, indicating that both low and high frequency words were recalled better than mid-frequency words.
- A low frequency advantage was observed specifically for item recognition, not for recall.
Conclusions:
- The findings suggest a non-linear relationship between word frequency and memory, with distinct patterns for recall and recognition.
- The observed U-shaped recall curve may reconcile inconsistencies in prior studies that used dichotomized word frequency groups.
More Related Videos
Related Concept Videos
01:03Serial Position Effect
The serial position effect is a cognitive phenomenon where individuals are more likely to recall the first and last items in a list compared to those in the middle. This effect is divided into the primacy effect and the recency effect. The primacy effect is observed when the initial items in a list are remembered better. This occurs because these items are rehearsed more frequently or receive more elaborative processing, allowing them to be encoded into long-term memory more effectively. For...
01:21Frequency-dependent Selection
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
01:16Interference and Decay
Forgetting is a complex cognitive phenomenon influenced by several factors, among which interference and decay are particularly prominent. These processes explain why individuals often struggle to retrieve specific information from memory, leading to lapses in recall that can be observed in everyday situations.
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
Interference occurs when competing memories hinder the retrieval of particular information. It can be classified into two types: proactive and retroactive interference. Proactive...
01:19Expected Frequencies in Goodness-of-Fit Tests
A goodness-of-fit test is conducted to determine whether the observed frequency values are statistically similar to the frequencies expected for the dataset. Suppose the expected frequencies for a dataset are equal such as when predicting the frequency of any number appearing when casting a die. In that case, the expected frequency is the ratio of the total number of observations (n) to the number of categories (k).
01:08Determination of Expected Frequency
Suppose one wants to test independence between the two variables of a contingency table. The values in the table constitute the observed frequencies of the dataset. But how does one determine the expected frequency of the dataset? One of the important assumptions is that the two variables are independent, which means the variables do not influence each other. For independent variables, the statistical probability of any event involving both variables is calculated by multiplying the individual...
01:14Relative Frequency Histogram
The relative frequency depicts the proportion of data points that have each value. The frequency tells the number of data points that have each value. Like the histogram, a relative frequency histogram also has the same shape with a horizontal scale (the x-axis), but the vertical scale (the y-axis) is marked with relative frequencies (percentages of the whole) instead of actual frequencies. A relative frequency histogram is a graphical representation of a frequency distribution where the...