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The Ecological and Concurrent Validi...

Sordahl, Jeffrey Alan, Jr.

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The Ecological and Concurrent Validity of Processing Speed Measures.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	The Ecological and Concurrent Validity of Processing Speed Measures./
Author:	Sordahl, Jeffrey Alan, Jr.
Description:	117 p.
Notes:	Source: Dissertation Abstracts International, Volume: 74-01(E), Section: B.
Contained By:	Dissertation Abstracts International74-01B(E).
Subject:	Psychology, Cognitive. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3529739
ISBN:	9781267665935

The Ecological and Concurrent Validity of Processing Speed Measures.
Sordahl, Jeffrey Alan, Jr.

The Ecological and Concurrent Validity of Processing Speed Measures. - 117 p.

Source: Dissertation Abstracts International, Volume: 74-01(E), Section: B.

Thesis (Psy.D.)--George Fox University, 2013.

Processing speed is a construct that has been present since Sir Francis Galton first used it as a rudimentary measure of individual differences in intelligence in the late 1800s. More recently, it has been introduced on Wechsler Intelligence Scales as an index which contributes to Full Scale IQ. Although processing speed has been alleged to contribute to various cognitive processes, such as memory, attention, and learning, little has been done to explore how this construct relates to "real-world" tasks. The purpose of this study was to evaluate the concurrent and ecological validity of common processing speed measures. The 50 participants chosen were divided into older (60-85 years) and younger (18-35 years) groups in order to examine possible disparity between age groups who have been reported to perform differently on processing speed measures. Each group was given a battery of processing speed tasks which included 6 formal neuropsychological measures, and 8 ecological tasks that were created for this study to reflect processing speed in everyday tasks. It was predicted that the younger group would perform better than the older on all processing speed measures, and that correlations between ecological and formal neuropsychological measures would be greater for the older than younger group. As predicted, the younger group performed significantly better than the older on most processing speed tasks. The correlations between ecological and neuropsychological measures were significant and comparable between both groups. Substantial correlations between ecological and neuropsychological measures suggest that the construct of processing speed does play a role in performing real-world, everyday activities.

ISBN: 9781267665935Subjects--Topical Terms:

1017810
Psychology, Cognitive.

The Ecological and Concurrent Validity of Processing Speed Measures.
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100 1 $a Sordahl, Jeffrey Alan, Jr. $3 2102158
245 1 4 $a The Ecological and Concurrent Validity of Processing Speed Measures.
300 $a 117 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-01(E), Section: B.
500 $a Adviser: Wayne V. Adams.
502 $a Thesis (Psy.D.)--George Fox University, 2013.
520 $a Processing speed is a construct that has been present since Sir Francis Galton first used it as a rudimentary measure of individual differences in intelligence in the late 1800s. More recently, it has been introduced on Wechsler Intelligence Scales as an index which contributes to Full Scale IQ. Although processing speed has been alleged to contribute to various cognitive processes, such as memory, attention, and learning, little has been done to explore how this construct relates to "real-world" tasks. The purpose of this study was to evaluate the concurrent and ecological validity of common processing speed measures. The 50 participants chosen were divided into older (60-85 years) and younger (18-35 years) groups in order to examine possible disparity between age groups who have been reported to perform differently on processing speed measures. Each group was given a battery of processing speed tasks which included 6 formal neuropsychological measures, and 8 ecological tasks that were created for this study to reflect processing speed in everyday tasks. It was predicted that the younger group would perform better than the older on all processing speed measures, and that correlations between ecological and formal neuropsychological measures would be greater for the older than younger group. As predicted, the younger group performed significantly better than the older on most processing speed tasks. The correlations between ecological and neuropsychological measures were significant and comparable between both groups. Substantial correlations between ecological and neuropsychological measures suggest that the construct of processing speed does play a role in performing real-world, everyday activities.
590 $a School code: 1149.
650 4 $a Psychology, Cognitive. $3 1017810
650 4 $a Psychology, Psychometrics. $3 1017742
650 4 $a Biology, Neuroscience. $3 1017680
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710 2 $a George Fox University. $3 1020843
773 0 $t Dissertation Abstracts International $g 74-01B(E).
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792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3529739