Gerrard, Paul B; Iverson, Grant L; Atkins, Joseph E; Maxwell, Bruce A; Zafonte, Ross; Schatz, Philip; Berkner, Paul D
Factor Structure of ImPACT® in Adolescent Student Athletes Journal Article
In: Archives of Clinical Neuropsychology, vol. 32, no. 1, pp. 117–122, 2017, ISBN: 08876177.
Abstract | Links | BibTeX | Tags: Athletes -- Psychology, ATTENTION-deficit hyperactivity disorder, Cognitive, COGNITIVE testing, Concussion, FACTOR analysis, Headache -- Treatment, Memory, Neuropsychological Tests, Sports
@article{Gerrard2017,
title = {Factor Structure of ImPACT® in Adolescent Student Athletes},
author = {Gerrard, Paul B and Iverson, Grant L and Atkins, Joseph E and Maxwell, Bruce A and Zafonte, Ross and Schatz, Philip and Berkner, Paul D},
doi = {10.1093/arclin/acw097},
isbn = {08876177},
year = {2017},
date = {2017-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {32},
number = {1},
pages = {117--122},
abstract = {Objective: ImPACT® (Immediate Post-Concussion Assessment and Cognitive Testing) is a computerized neuropsychological screening battery, which is widely used to measure the acute effects of sport-related concussion and to monitor recovery from injury. This study examined the factor structure of ImPACT® in several samples of high school student athletes. We hypothesized that a 2-factor structure would be present in all samples. Method: A sample of 4,809 adolescent student athletes was included, and subgroups with a history of treatment for headaches or a self-reported history of learning problems or attention-deficit hyperactivity disorder were analyzed separately. Exploratory principal axis factor analyses with Promax rotations were used. Results: As hypothesized, both the combination of Verbal Memory and Visual Memory Composite scores loaded on one (Memory) factor, while Visual Motor Speed and Reaction Time loaded on a different (Speed) factor, in the total sample and in all subgroups. Conclusion: These results provide reasonably compelling evidence, across multiple samples, which ImPACT® measures 2 distinct factors: memory and speed. [ABSTRACT FROM AUTHOR]},
keywords = {Athletes -- Psychology, ATTENTION-deficit hyperactivity disorder, Cognitive, COGNITIVE testing, Concussion, FACTOR analysis, Headache -- Treatment, Memory, Neuropsychological Tests, Sports},
pubstate = {published},
tppubtype = {article}
}
Bailie, J M; Kennedy, J E; French, L M; Marshall, K; Prokhorenko, O; Asmussen, S; Reid, M W; Qashu, F; Brickell, T A; Lange, R T
Profile Analysis of the Neurobehavioral and Psychiatric Symptoms Following Combat-Related Mild Traumatic Brain Injury: Identification of Subtypes Journal Article
In: Journal of Head Trauma Rehabilitation, vol. 31, no. 1, pp. 2–12, 2016.
Abstract | BibTeX | Tags: *Brain Injuries/co [Complications], *Military Personnel, Abbreviated Injury Scale, Adolescent, adult, Brain Injuries/px [Psychology], Cluster Analysis, Cognition Disorders/et [Etiology], Cognition Disorders/px [Psychology], FACTOR analysis, Headache/et [Etiology], Headache/px [Psychology], Humans, Male, middle aged, Mood Disorders/et [Etiology], Mood Disorders/px [Psychology], Neuropsychological Tests, Post-Traumatic/et [Etiology], Post-Traumatic/px [Psychology], Statistical, Stress Disorders, UNITED States, Warfare, Young Adult
@article{Bailie2016,
title = {Profile Analysis of the Neurobehavioral and Psychiatric Symptoms Following Combat-Related Mild Traumatic Brain Injury: Identification of Subtypes},
author = {Bailie, J M and Kennedy, J E and French, L M and Marshall, K and Prokhorenko, O and Asmussen, S and Reid, M W and Qashu, F and Brickell, T A and Lange, R T},
year = {2016},
date = {2016-01-01},
journal = {Journal of Head Trauma Rehabilitation},
volume = {31},
number = {1},
pages = {2--12},
abstract = {OBJECTIVE: To explore the taxonomy of combat-related mild traumatic brain injury (mTBI) based on symptom patterns. PARTICIPANTS: Up to 1341 military personnel who experienced a combat-related mTBI within 2 years of evaluation. MEASURES: Neurobehavioral Symptom Inventory and PTSD Checklist-Civilian Version (PCL-C). RESULTS: Cluster analysis revealed the following 4 subtypes: primarily psychiatric (posttraumatic stress disorder) group, a cognitive group, a mixed symptom group, and a good recovery group. The posttraumatic stress disorder cluster (21.9% of the sample) reported symptoms related to hyperarousal and dissociation/depression with few complaints related to cognition or headaches. The cognitive group (21.5% of the sample) had primarily cognitive and headache complaints with few mood symptoms. The mixed profile cluster included 18.6% of the sample and was characterized by a combination of mood complaints (hyperarousal and dissociation/depression), cognitive complaints, and headaches. The largest cluster (37.8% of the sample) had an overall low symptom profile and was labeled the "good recovery" group. CONCLUSIONS: The results support a unique taxonomy for combat-related mTBI. The clinical differences among these subtypes indicate a need for unique treatment resources and programs.},
keywords = {*Brain Injuries/co [Complications], *Military Personnel, Abbreviated Injury Scale, Adolescent, adult, Brain Injuries/px [Psychology], Cluster Analysis, Cognition Disorders/et [Etiology], Cognition Disorders/px [Psychology], FACTOR analysis, Headache/et [Etiology], Headache/px [Psychology], Humans, Male, middle aged, Mood Disorders/et [Etiology], Mood Disorders/px [Psychology], Neuropsychological Tests, Post-Traumatic/et [Etiology], Post-Traumatic/px [Psychology], Statistical, Stress Disorders, UNITED States, Warfare, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Donders, J; Strong, C A
Latent Structure of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) After Mild Traumatic Brain Injury Journal Article
In: Archives of Clinical Neuropsychology, vol. 31, no. 1, pp. 29–36, 2016.
Abstract | BibTeX | Tags: *Brain Injuries/px [Psychology], *Cognition Disorders/px [Psychology], *Executive Function, Adolescent, adult, Brain Injuries/co [Complications], Brain Injuries/di [Diagnosis], Cognition Disorders/co [Complications], Cognition Disorders/di [Diagnosis], FACTOR analysis, Female, Humans, Male, Models, Neuropsychological Tests, Psychological, self report, Statistical, Young Adult
@article{Donders2016,
title = {Latent Structure of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) After Mild Traumatic Brain Injury},
author = {Donders, J and Strong, C A},
year = {2016},
date = {2016-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {31},
number = {1},
pages = {29--36},
abstract = {One hundred persons with mild traumatic brain injury (TBI) and their informants completed the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) within 1-12 months after injury. Exploratory maximum-likelihood factor analysis with oblique rotation revealed that although a traditional 2-factor model fit the informant-report data well, a 3-factor solution fit the self-report data relatively best. These factors were labeled Metacognition, Behavioral Regulation, and Emotional Regulation. The presence of a premorbid history of outpatient psychiatric treatment was strongly predictive of higher scores (reflecting more perceived problems) on each of these 3 factors. Lower educational attainment was associated with higher scores on the Behavioral Regulation factor, whereas absence of intracranial findings on neuroimaging was associated with higher scores on the Emotional Regulation factor. It is concluded that, after mild TBI, self-report data on the BRIEF-A can be interpreted along a 3-factorial model and that high elevations on this instrument are strongly affected by premorbid complications. Copyright © The Author 2015. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.},
keywords = {*Brain Injuries/px [Psychology], *Cognition Disorders/px [Psychology], *Executive Function, Adolescent, adult, Brain Injuries/co [Complications], Brain Injuries/di [Diagnosis], Cognition Disorders/co [Complications], Cognition Disorders/di [Diagnosis], FACTOR analysis, Female, Humans, Male, Models, Neuropsychological Tests, Psychological, self report, Statistical, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Gerrard, Paul B; Iverson, Grant L; Atkins, Joseph E; Maxwell, Bruce A; Zafonte, Ross; Schatz, Philip; Berkner, Paul D
Factor Structure of ImPACT® in Adolescent Student Athletes Journal Article
In: Archives of Clinical Neuropsychology, vol. 32, no. 1, pp. 117–122, 2017, ISBN: 08876177.
@article{Gerrard2017,
title = {Factor Structure of ImPACT® in Adolescent Student Athletes},
author = {Gerrard, Paul B and Iverson, Grant L and Atkins, Joseph E and Maxwell, Bruce A and Zafonte, Ross and Schatz, Philip and Berkner, Paul D},
doi = {10.1093/arclin/acw097},
isbn = {08876177},
year = {2017},
date = {2017-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {32},
number = {1},
pages = {117--122},
abstract = {Objective: ImPACT® (Immediate Post-Concussion Assessment and Cognitive Testing) is a computerized neuropsychological screening battery, which is widely used to measure the acute effects of sport-related concussion and to monitor recovery from injury. This study examined the factor structure of ImPACT® in several samples of high school student athletes. We hypothesized that a 2-factor structure would be present in all samples. Method: A sample of 4,809 adolescent student athletes was included, and subgroups with a history of treatment for headaches or a self-reported history of learning problems or attention-deficit hyperactivity disorder were analyzed separately. Exploratory principal axis factor analyses with Promax rotations were used. Results: As hypothesized, both the combination of Verbal Memory and Visual Memory Composite scores loaded on one (Memory) factor, while Visual Motor Speed and Reaction Time loaded on a different (Speed) factor, in the total sample and in all subgroups. Conclusion: These results provide reasonably compelling evidence, across multiple samples, which ImPACT® measures 2 distinct factors: memory and speed. [ABSTRACT FROM AUTHOR]},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Bailie, J M; Kennedy, J E; French, L M; Marshall, K; Prokhorenko, O; Asmussen, S; Reid, M W; Qashu, F; Brickell, T A; Lange, R T
Profile Analysis of the Neurobehavioral and Psychiatric Symptoms Following Combat-Related Mild Traumatic Brain Injury: Identification of Subtypes Journal Article
In: Journal of Head Trauma Rehabilitation, vol. 31, no. 1, pp. 2–12, 2016.
@article{Bailie2016,
title = {Profile Analysis of the Neurobehavioral and Psychiatric Symptoms Following Combat-Related Mild Traumatic Brain Injury: Identification of Subtypes},
author = {Bailie, J M and Kennedy, J E and French, L M and Marshall, K and Prokhorenko, O and Asmussen, S and Reid, M W and Qashu, F and Brickell, T A and Lange, R T},
year = {2016},
date = {2016-01-01},
journal = {Journal of Head Trauma Rehabilitation},
volume = {31},
number = {1},
pages = {2--12},
abstract = {OBJECTIVE: To explore the taxonomy of combat-related mild traumatic brain injury (mTBI) based on symptom patterns. PARTICIPANTS: Up to 1341 military personnel who experienced a combat-related mTBI within 2 years of evaluation. MEASURES: Neurobehavioral Symptom Inventory and PTSD Checklist-Civilian Version (PCL-C). RESULTS: Cluster analysis revealed the following 4 subtypes: primarily psychiatric (posttraumatic stress disorder) group, a cognitive group, a mixed symptom group, and a good recovery group. The posttraumatic stress disorder cluster (21.9% of the sample) reported symptoms related to hyperarousal and dissociation/depression with few complaints related to cognition or headaches. The cognitive group (21.5% of the sample) had primarily cognitive and headache complaints with few mood symptoms. The mixed profile cluster included 18.6% of the sample and was characterized by a combination of mood complaints (hyperarousal and dissociation/depression), cognitive complaints, and headaches. The largest cluster (37.8% of the sample) had an overall low symptom profile and was labeled the "good recovery" group. CONCLUSIONS: The results support a unique taxonomy for combat-related mTBI. The clinical differences among these subtypes indicate a need for unique treatment resources and programs.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Donders, J; Strong, C A
Latent Structure of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) After Mild Traumatic Brain Injury Journal Article
In: Archives of Clinical Neuropsychology, vol. 31, no. 1, pp. 29–36, 2016.
@article{Donders2016,
title = {Latent Structure of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) After Mild Traumatic Brain Injury},
author = {Donders, J and Strong, C A},
year = {2016},
date = {2016-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {31},
number = {1},
pages = {29--36},
abstract = {One hundred persons with mild traumatic brain injury (TBI) and their informants completed the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) within 1-12 months after injury. Exploratory maximum-likelihood factor analysis with oblique rotation revealed that although a traditional 2-factor model fit the informant-report data well, a 3-factor solution fit the self-report data relatively best. These factors were labeled Metacognition, Behavioral Regulation, and Emotional Regulation. The presence of a premorbid history of outpatient psychiatric treatment was strongly predictive of higher scores (reflecting more perceived problems) on each of these 3 factors. Lower educational attainment was associated with higher scores on the Behavioral Regulation factor, whereas absence of intracranial findings on neuroimaging was associated with higher scores on the Emotional Regulation factor. It is concluded that, after mild TBI, self-report data on the BRIEF-A can be interpreted along a 3-factorial model and that high elevations on this instrument are strongly affected by premorbid complications. Copyright © The Author 2015. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Gerrard, Paul B; Iverson, Grant L; Atkins, Joseph E; Maxwell, Bruce A; Zafonte, Ross; Schatz, Philip; Berkner, Paul D
Factor Structure of ImPACT® in Adolescent Student Athletes Journal Article
In: Archives of Clinical Neuropsychology, vol. 32, no. 1, pp. 117–122, 2017, ISBN: 08876177.
Abstract | Links | BibTeX | Tags: Athletes -- Psychology, ATTENTION-deficit hyperactivity disorder, Cognitive, COGNITIVE testing, Concussion, FACTOR analysis, Headache -- Treatment, Memory, Neuropsychological Tests, Sports
@article{Gerrard2017,
title = {Factor Structure of ImPACT® in Adolescent Student Athletes},
author = {Gerrard, Paul B and Iverson, Grant L and Atkins, Joseph E and Maxwell, Bruce A and Zafonte, Ross and Schatz, Philip and Berkner, Paul D},
doi = {10.1093/arclin/acw097},
isbn = {08876177},
year = {2017},
date = {2017-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {32},
number = {1},
pages = {117--122},
abstract = {Objective: ImPACT® (Immediate Post-Concussion Assessment and Cognitive Testing) is a computerized neuropsychological screening battery, which is widely used to measure the acute effects of sport-related concussion and to monitor recovery from injury. This study examined the factor structure of ImPACT® in several samples of high school student athletes. We hypothesized that a 2-factor structure would be present in all samples. Method: A sample of 4,809 adolescent student athletes was included, and subgroups with a history of treatment for headaches or a self-reported history of learning problems or attention-deficit hyperactivity disorder were analyzed separately. Exploratory principal axis factor analyses with Promax rotations were used. Results: As hypothesized, both the combination of Verbal Memory and Visual Memory Composite scores loaded on one (Memory) factor, while Visual Motor Speed and Reaction Time loaded on a different (Speed) factor, in the total sample and in all subgroups. Conclusion: These results provide reasonably compelling evidence, across multiple samples, which ImPACT® measures 2 distinct factors: memory and speed. [ABSTRACT FROM AUTHOR]},
keywords = {Athletes -- Psychology, ATTENTION-deficit hyperactivity disorder, Cognitive, COGNITIVE testing, Concussion, FACTOR analysis, Headache -- Treatment, Memory, Neuropsychological Tests, Sports},
pubstate = {published},
tppubtype = {article}
}
Bailie, J M; Kennedy, J E; French, L M; Marshall, K; Prokhorenko, O; Asmussen, S; Reid, M W; Qashu, F; Brickell, T A; Lange, R T
Profile Analysis of the Neurobehavioral and Psychiatric Symptoms Following Combat-Related Mild Traumatic Brain Injury: Identification of Subtypes Journal Article
In: Journal of Head Trauma Rehabilitation, vol. 31, no. 1, pp. 2–12, 2016.
Abstract | BibTeX | Tags: *Brain Injuries/co [Complications], *Military Personnel, Abbreviated Injury Scale, Adolescent, adult, Brain Injuries/px [Psychology], Cluster Analysis, Cognition Disorders/et [Etiology], Cognition Disorders/px [Psychology], FACTOR analysis, Headache/et [Etiology], Headache/px [Psychology], Humans, Male, middle aged, Mood Disorders/et [Etiology], Mood Disorders/px [Psychology], Neuropsychological Tests, Post-Traumatic/et [Etiology], Post-Traumatic/px [Psychology], Statistical, Stress Disorders, UNITED States, Warfare, Young Adult
@article{Bailie2016,
title = {Profile Analysis of the Neurobehavioral and Psychiatric Symptoms Following Combat-Related Mild Traumatic Brain Injury: Identification of Subtypes},
author = {Bailie, J M and Kennedy, J E and French, L M and Marshall, K and Prokhorenko, O and Asmussen, S and Reid, M W and Qashu, F and Brickell, T A and Lange, R T},
year = {2016},
date = {2016-01-01},
journal = {Journal of Head Trauma Rehabilitation},
volume = {31},
number = {1},
pages = {2--12},
abstract = {OBJECTIVE: To explore the taxonomy of combat-related mild traumatic brain injury (mTBI) based on symptom patterns. PARTICIPANTS: Up to 1341 military personnel who experienced a combat-related mTBI within 2 years of evaluation. MEASURES: Neurobehavioral Symptom Inventory and PTSD Checklist-Civilian Version (PCL-C). RESULTS: Cluster analysis revealed the following 4 subtypes: primarily psychiatric (posttraumatic stress disorder) group, a cognitive group, a mixed symptom group, and a good recovery group. The posttraumatic stress disorder cluster (21.9% of the sample) reported symptoms related to hyperarousal and dissociation/depression with few complaints related to cognition or headaches. The cognitive group (21.5% of the sample) had primarily cognitive and headache complaints with few mood symptoms. The mixed profile cluster included 18.6% of the sample and was characterized by a combination of mood complaints (hyperarousal and dissociation/depression), cognitive complaints, and headaches. The largest cluster (37.8% of the sample) had an overall low symptom profile and was labeled the "good recovery" group. CONCLUSIONS: The results support a unique taxonomy for combat-related mTBI. The clinical differences among these subtypes indicate a need for unique treatment resources and programs.},
keywords = {*Brain Injuries/co [Complications], *Military Personnel, Abbreviated Injury Scale, Adolescent, adult, Brain Injuries/px [Psychology], Cluster Analysis, Cognition Disorders/et [Etiology], Cognition Disorders/px [Psychology], FACTOR analysis, Headache/et [Etiology], Headache/px [Psychology], Humans, Male, middle aged, Mood Disorders/et [Etiology], Mood Disorders/px [Psychology], Neuropsychological Tests, Post-Traumatic/et [Etiology], Post-Traumatic/px [Psychology], Statistical, Stress Disorders, UNITED States, Warfare, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Donders, J; Strong, C A
Latent Structure of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) After Mild Traumatic Brain Injury Journal Article
In: Archives of Clinical Neuropsychology, vol. 31, no. 1, pp. 29–36, 2016.
Abstract | BibTeX | Tags: *Brain Injuries/px [Psychology], *Cognition Disorders/px [Psychology], *Executive Function, Adolescent, adult, Brain Injuries/co [Complications], Brain Injuries/di [Diagnosis], Cognition Disorders/co [Complications], Cognition Disorders/di [Diagnosis], FACTOR analysis, Female, Humans, Male, Models, Neuropsychological Tests, Psychological, self report, Statistical, Young Adult
@article{Donders2016,
title = {Latent Structure of the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) After Mild Traumatic Brain Injury},
author = {Donders, J and Strong, C A},
year = {2016},
date = {2016-01-01},
journal = {Archives of Clinical Neuropsychology},
volume = {31},
number = {1},
pages = {29--36},
abstract = {One hundred persons with mild traumatic brain injury (TBI) and their informants completed the Behavior Rating Inventory of Executive Function-Adult Version (BRIEF-A) within 1-12 months after injury. Exploratory maximum-likelihood factor analysis with oblique rotation revealed that although a traditional 2-factor model fit the informant-report data well, a 3-factor solution fit the self-report data relatively best. These factors were labeled Metacognition, Behavioral Regulation, and Emotional Regulation. The presence of a premorbid history of outpatient psychiatric treatment was strongly predictive of higher scores (reflecting more perceived problems) on each of these 3 factors. Lower educational attainment was associated with higher scores on the Behavioral Regulation factor, whereas absence of intracranial findings on neuroimaging was associated with higher scores on the Emotional Regulation factor. It is concluded that, after mild TBI, self-report data on the BRIEF-A can be interpreted along a 3-factorial model and that high elevations on this instrument are strongly affected by premorbid complications. Copyright © The Author 2015. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.},
keywords = {*Brain Injuries/px [Psychology], *Cognition Disorders/px [Psychology], *Executive Function, Adolescent, adult, Brain Injuries/co [Complications], Brain Injuries/di [Diagnosis], Cognition Disorders/co [Complications], Cognition Disorders/di [Diagnosis], FACTOR analysis, Female, Humans, Male, Models, Neuropsychological Tests, Psychological, self report, Statistical, Young Adult},
pubstate = {published},
tppubtype = {article}
}