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Participants in this study were 169 veterans, age 50 or older, living in one of two homes in the United States. The researchers determined that 88 of the particip TBI at some point in their lifetime, while 81 had no history of TBI. The researcher "Participants completed a comprehensive neuropsychology battery, an expand Alzheimer's Disease Centers' Uniform Data Set battery.... This battery was com assessing cognitive functioning in five domains: (1) attention/working memory, (3) language, (4) processing speed, and (5) executive functioning" (p. 58). Note t domains was assessed by multiple measures or tests of that domain. The resea create a single score in each of the domains for each participant in the study.

Participants in this study were 169 veterans, age 50 or older, living in one of two homes in the United States. The researchers determined that 88 of the particip TBI at some point in their lifetime, while 81 had no history of TBI. The researcher "Participants completed a comprehensive neuropsychology battery, an expand Alzheimer's Disease Centers' Uniform Data Set battery.... This battery was com assessing cognitive functioning in five domains: (1) attention/working memory, (3) language, (4) processing speed, and (5) executive functioning" (p. 58). Note t domains was assessed by multiple measures or tests of that domain. The resea create a single score in each of the domains for each participant in the study.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Participants in this study were 169 veterans, age 50 or older, living in one of two veterans retirement homes in the United States. The researchers determined that 88 of the participants had a history of TBI at some point in their lifetime, while 81 had no history of TBI. The researchers reported, "Participants completed a comprehensive neuropsychology battery, an expanded version of the Alzheimer's Disease Centers' Uniform Data Set battery... This battery was comprised of measures assessing cognitive functioning in five domains: (1) attention/working memory, (2) learning/memory, (3) language, (4) processing speed, and (5) executive functioning" (p. 58). Note that each of these five domains was assessed by multiple measures or tests of that domain. The researchers wanted to create a single score in each of the domains for each participant in the study. What would be the problem with averaging the raw scores of each participant for the multiple tests within each domain? O A. Each participant may perform differently than other participants. Thus, averaging participants' scores would not produce meaningful data. O B. Some participants may not have completed all of the tests, and the scores of those participants would need to be excluded. O C. Only percentile scores can be averaged. It is not possible to average raw scores from tests or measurements. O D. The tests may have different ranges or possible scores, such that a score of 2, for example, on one test may not mean the same thing on another test. Thus, averaging the scores on those tests might not produce meaningful data.
Transcribed Image Text:Participants in this study were 169 veterans, age 50 or older, living in one of two veterans retirement homes in the United States. The researchers determined that 88 of the participants had a history of TBI at some point in their lifetime, while 81 had no history of TBI. The researchers reported, "Participants completed a comprehensive neuropsychology battery, an expanded version of the Alzheimer's Disease Centers' Uniform Data Set battery... This battery was comprised of measures assessing cognitive functioning in five domains: (1) attention/working memory, (2) learning/memory, (3) language, (4) processing speed, and (5) executive functioning" (p. 58). Note that each of these five domains was assessed by multiple measures or tests of that domain. The researchers wanted to create a single score in each of the domains for each participant in the study. What would be the problem with averaging the raw scores of each participant for the multiple tests within each domain? O A. Each participant may perform differently than other participants. Thus, averaging participants' scores would not produce meaningful data. O B. Some participants may not have completed all of the tests, and the scores of those participants would need to be excluded. O C. Only percentile scores can be averaged. It is not possible to average raw scores from tests or measurements. O D. The tests may have different ranges or possible scores, such that a score of 2, for example, on one test may not mean the same thing on another test. Thus, averaging the scores on those tests might not produce meaningful data.
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