MemoryDeficits: Memory Deficits in Psychiatric Patients
Description
Response frequencies of 96 patients who took part in a pair-clustering
experiment to assess their memory deficits.
Usage
data("MemoryDeficits")
Arguments
Format
A data frame containing 576 observations on 7 variables.
ID
Participant ID.
group
Factor with four levels specifying patient or control group
of participant.
trial
Trial number from 1 to 6.
E1
Number of pairs recalled adjacently.
E2
Number of pairs recalled non-adjacently.
E3
Number of single pair members recalled.
E4
Number of non-recalled pairs.
Source
The data were made available by William H. Batchelder.
Details
Riefer, Knapp, Batchelder, Bamber and Manifold (2002) report a study on
memory deficits in schizophrenic (n = 29) and organic alcoholic (n = 21)
patients who were compared to two matched control groups (n = 25, n = 21).
Participants were presented with 20 pairs of semantically related words. In
a later memory test, they freely recalled the presented words. This
procedure was repeated for a total of six study and test trials. Responses
were classified into four categories: both words in a pair are recalled
adjacently (E1) or non-adjacently (E2), one word in a pair is recalled (E3),
neither word in a pair is recalled (E4).
References
Riefer, D.M., Knapp, B.R., Batchelder, W.H., Bamber, D., & Manifold, V.
(2002). Cognitive psychometrics: Assessing storage and retrieval deficits in
special populations with multinomial processing tree models. Psychological
Assessment, 14, 184-201.