Remembering the " individual " in individual differences research: A quote to note

I just ran across this statement in a recent article (see below). It served as a reminder of something I have always preached, but from-time-to-time, tend to forget as I analyze cognitive ability test data, post research articles, or suggest hypotheses regarding test score differences---be it here at this blog, in a journal article, book, book chapter, or professional presentation. The point being that we must remain vigilant in remembering the " individual " in individual differences research.The privileged unit of analysis in psychology is the individual (Nesselroade, Gerstorf, Hardy,&Ram, 2007). Nevertheless, many data-analytic approaches coarsely aggregate data and tacitly assume group-average models to hold and to be interpreted in lieu of more fine-grained and, ultimately, person-specific models. For example, when a group of persons show an average increase of performance in a learning task, this does not mean that all persons follow a pattern of change similar to this average. In fact, none of the persons may be well represented by the average trend. In a similar vein, Tucker (1966) argued that the consideration of differences instead of averages will allow us to gain more information about the nature of basic functions underlying behavior. Ever since, researchers have been questioning coarse aggregation of data across persons (e.g., Lamiell, 1981; Nesselroade&Molenaar, 1999) as the estimates of averaged effects may not be representative of any single...
Source: Intelligent Insights on Intelligence Theories and Tests (aka IQ's Corner) - Category: Neuroscience Tags: individual differences quotes to note Source Type: blogs

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ConclusionSubstantial agreement exists among experts regarding many strong recommendations for the improvement of practice concerning the use of muscle relaxants and reversal agents during anaesthesia. In particular, the French Society of Anaesthesia and Intensive Care (SFAR) recommends the use of a device to monitor neuromuscular blockade throughout anaesthesia.
Source: Anaesthesia, Critical Care and Pain Medicine - Category: Anesthesiology Source Type: research
Publication date: January 2020Source: Anaesthesia &Intensive Care Medicine, Volume 21, Issue 1Author(s):
Source: Anaesthesia and intensive care medicine - Category: Anesthesiology Source Type: research
Publication date: January 2020Source: Anaesthesia &Intensive Care Medicine, Volume 21, Issue 1Author(s):
Source: Anaesthesia and intensive care medicine - Category: Anesthesiology Source Type: research
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Source: NIH Calendar of Events - Category: American Health Source Type: events
Date: Tuesday, 04 07, 2020; Speaker: Brad Walters, Ph.D., Assistant Professor, Dept. of Neurobiology and Anatomical Sciences, University of Mississippi Medical Center; 35A; 610
Source: NIH Calendar of Events - Category: American Health Source Type: events
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Source: NIH Calendar of Events - Category: American Health Source Type: events
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Source: NIH Calendar of Events - Category: American Health Source Type: events
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Source: NIH Calendar of Events - Category: American Health Source Type: events
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Source: NIH Calendar of Events - Category: American Health Source Type: events
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Source: Human Vaccines and Immunotherapeutics - Category: Allergy & Immunology Authors: Source Type: research
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