Concept information
Preferred term
d' index
Definition
- In signal detection theory applied to recognition, the index is used to assess the subject's ability to distinguish old (studied) from new items. It is therefore an index of discrimination corresponding to the distance between the mean of the distribution of familiarity of old items minus that of new items, divided by the standard deviation of the distribution of new items. The higher the index, the more old items are distinguished from new items.
Broader concept
Entry terms
- d prime
- d' score
Belongs to group
Bibliographic citation(s)
-
• Banks, W. P. (1970). Signal detection theory and human memory. Psychological Bulletin, 74(2), 81-99. https://doi.org/10.1037/h0029531
[Study type: literature review / Access: closed]
Creator
- Frank Arnould
Measure of
In other languages
-
French
-
d prime
-
score d'
URI
http://data.loterre.fr/ark:/67375/P66-C6KFW6JL-F
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