A-180 Predictors of Performance on the ImPACT Validity Indices at Baseline

2021 ◽  
Vol 36 (6) ◽  
pp. 1235-1235
Author(s):  
Liora Greenberg ◽  
Victoria Merritt ◽  
Peter Arnett
Keyword(s):  
Learning Disability ◽  
Test Performance ◽  
Group Membership ◽  
Depressive Symptomatology ◽  
Binary Logistic Regression ◽  
Independent Variables ◽  
Validity Indices ◽  
Concussion History ◽  
Logistic Regressions ◽  
The Impact

Abstract Objective To circumvent “sandbagging”, the ImPACT, a widely used computerized program in sports-related concussion evaluations, contains five embedded validity indices (VIs). This study aimed to identify variables associated with invalid performance (i.e., scoring beyond the trigger-warning threshold) on at least one VI. Method Analysis derived from 1287 college students was conducted utilizing a binary logistic regression. The dependent variable (the five VIs) was dichotomized into “Fail” (n = 71; 76.1% male, 66.2% Caucasian) and “Pass” (n = 1216; 69.8% male, 78.4% Caucasian) groups. Any athlete with invalid performance on one or more VIs was classified into the “Fail” group; athletes with valid performance across all five VIs were classified into the “Pass” group. Independent variables included age, sex, concussion history, depression, estimated FSIQ, learning disability, ADHD, and “post-concussion” symptoms. A SMOTE was applied to balance the dataset and 1000 iterations of the regression were applied. Results Significant associations across 1000 iterations of logistic regressions were found: Concussion history (p < 0.05, 992/1000), estimated FSIQ (p < 0.05; 997/1000), and depressive symptomatology (p < 0.05; 1000/1000) were negatively associated with “Fail” group membership. Learning disability (p < 0.05; 1000/1000) and post-concussion symptoms (p < 0.05; 1000/1000) were positively associated with “Fail” group membership. No associations were identified with sex or ADHD and group membership. Conclusion Results suggest that those with fewer concussions, lower estimated FSIQ, fewer depressive symptoms, learning disability, and more severe post-concussion symptoms may be more likely to show invalid test performance (or trend toward sandbagging) at baseline. Results have important clinical implications for identifying premorbid characteristics that may be indicative of sandbagging.

scholarly journals A-110 Are Invalid Baselines More Frequent in those with Concussion History?

2020 ◽  
Vol 35 (6) ◽  
pp. 903-903
Author(s):  
Maietta J ◽  
Hopkins N ◽  
Maietta L ◽  
Flood S ◽  
Johnson L ◽  
...  
Keyword(s):  
High School ◽  
Test Performance ◽  
Impact Testing ◽  
Cognitive Testing ◽  
Return To Play ◽  
Future Research ◽  
High School Athletes ◽  
History Of ◽  
Concussion History ◽  
The Impact

Abstract Objective The Immediate Post-concussion Assessment and Cognitive Testing (ImPACT) is a commonly utilized measure for sports concussion. Across the literature we have reviewed there is an abundance of information that focuses on invalid baselines and the effects of concussions. Yet, no previous studies have investigated the effect of a history of concussion on frequency of invalid baselines. The current study examined these effects within high school athletes. Methods Participants included 47,874 high school athletes (mean age = 15.0, SD = 1.2; mean education = 9.0; SD = 1.5; 42.6% female). These athletes were selected from a larger database of athletes who completed baseline ImPACT testing from 2008–2016. Self-reported history of concussion (none vs. 1+) was obtained from the demographic section of the ImPACT. Invalid performance was based on standard ImPACT criteria (“Baseline++”). Results Chi-square tests of homogeneity were performed to assess differences in invalid baselines between those with and without a history of concussion. Results revealed significantly more invalid baselines for those with a history of concussion (p < .01). Conclusions Results indicate that high school athletes with a self-reported history of concussion may be more likely to have invalid baseline test performance. Based on these preliminary results, clinicians who are managing return-to-play decisions may want to take into account concussion history when interpreting baseline data. Future research should, of course, investigate whether this result is consistent in other samples and, if so, whether alternative validity criteria may be needed. Future investigations of athletes with confirmed clinical diagnosis of concussion is an important next step in investigating differences in rates of invalid baselines.

Discriminant Validity of the MMPI Depression Subtle (D-S) and Depression Obvious (D-O) Scales

Assessment ◽  
1997 ◽  
Vol 4 (4) ◽  
pp. 311-319 ◽  
Author(s):  
Christine Zalewski ◽  
Caroline T. Schatz ◽  
Irving I. Gottesman ◽  
David S. Nichols
Keyword(s):  
Discriminant Validity ◽  
Minnesota Multiphasic Personality Inventory ◽  
Group Membership ◽  
Depressive Symptomatology ◽  
Life Time ◽  
Diagnostic Group ◽  
Empirical Literature ◽  
History Of ◽  
The Impact ◽  
The Relationship

This study examined the relationship between diagnostic group membership (i.e., life-time depressed, n = 367; lifetime mixed psychiatric, n = 367; and nonpsychiatric, n = 367) and scores on the Wiener-Harmon Subtle-Obvious scales (Depression Subtle, D-S, and Depression Obvious, D-O) for the Depression ( D) scale of the Minnesota Multiphasic Personality Inventory (MMPI). Additionally, the impact of current versus past depressive symptomatology on D-S and D-O scores was examined. As expected, D-O scores were significantly related to diagnostic group membership, with higher mean scores found in the depressed groups. However, D-S scores were either unrelated or inversely related to the presence or history of depression. The results are discussed in the context of current empirical literature and clinical practice.

Analisis Pengaruh Penerimaan Pajak Daerah Dan Retribusi Daerah Terhadap Pendapatan Asli Daerah Kabupaten/Kota Di Jawa Tengah

2015 ◽  
Vol 2 (1) ◽  
pp. 51-61
Author(s):  
Beta Asteria
Keyword(s):  
Local Government ◽  
Government Budget ◽  
Multiple Regressions ◽  
Independent Variables ◽  
Central Java ◽  
Directorate General ◽  
Fiscal Balance ◽  
Research Findings ◽  
Local Government Budget ◽  
The Impact

This research deals with the impact of Local Tax and Retribution Receipt to Local Government Original Receipt of Regency/City in Central Java from 2008 to 2012. This research utilizes the data of actual of local government budget from Directorate General of Fiscal Balance (Direktorat Jendral Perimbangan Keuangan). Methods of collecting data through census. The number of Regency/City in Central Java are 35. But the data consists of 33 of Regency/City In Central Java from 2008 to 2012. Total of samples are 165. Karanganyar Regency and Sukoharjo Regency were not included as samples of this research because they didn’t report the data of actual of local government budget to Directorate General of Fiscal Balance in 2009.The model used in this research is multiple regressions. The independent variables are Local Tax and Retribution Receipt, the dependent variable is Local Government Original Receipt. The research findings show that Local Tax and Retribution give the significant impact partially and simultaneusly on Local Government Original Receipt at real level 5 percent. All independent variables explain 91,90 percent of the revenue variability while the rest 8,10 percent is explained by other variables.Keywords: Local Tax, Retribution, and Local Government Original Receipt

Faktor-faktor yang Mempengaruhi Belanja Modal pada Kabupaten atau Kota di Provinsi Sumatera Selatan

2018 ◽  
Vol 2 (1) ◽  
pp. 140
Author(s):  
Gogor Mustawa Zais
Keyword(s):  
Multiple Regression ◽  
Capital Expenditure ◽  
Independent Variables ◽  
The Impact

ABSTRACT The objective of this study was to find out and analyze the impact of regional own revenue (PAD), general allocation fund (DAU) and special allocation fund (DAK) on capital expenditure (BM)  in regencies/towns in South  Sumatera Province  for a period of 2010 to 2014. The data were analyzed by using multiple regression. There were four variables in this research. A dependent variable was capital expenditure (BM) and independent variables were regional own revenue (PAD), general allocation fund (DAU) and special allocation fund (DAK). The results showed that the regional own revenue and special allocation fund variables have positive and significant impact on the capital expenditure. This means that the higher the regional own revenue and special allocation fund, the regencies/towns increased the capital expenditure are also higher. General allocation fund do not have a significant effect on the capital expenditure (BM) in regencies/towns in South Sumatera Province for a period of 2010 to 2014

PENGARUH KUALITAS PELAYANAN DAN KEPERCAYAAN TERHADAP LOYALITAS NASABAH PT BANK MANDIRI,Tbk CABANG JAKARTA KELAPA GADING BARAT

2015 ◽  
Vol 3 (3) ◽  
Author(s):  
Imam Wibowo ◽  
Santi Putri Ananda
Keyword(s):  
Linear Regression ◽  
Service Quality ◽  
Multiple Linear Regression ◽  
Analysis Tool ◽  
Positive Contribution ◽  
Homogeneous Population ◽  
Independent Variables ◽  
Research Population ◽  
The Impact

Purpose-To study the impact of the service quality and trust on customers loyalty of PT.Bank Mandiri,Tbk; Kelapa Gading Barat Branch. To improve the customers loyalty there are several factors that can influence them, such as service quality and trust. Methodology/approach-The research population was all customers PT.Bank Mandiri,Tbk;Kelapa Gading Barat Branch.According to the homogeneous population and based on the Gay and Diehl Theory, the samples taken were 50 people. Variables in this investigations consisted of: a).Independent Variables (exogenous): Service Quality (X1) and Trust (X2). b).The dependent variable (endogenous) Customers Loyalty (Y). Analysis tool being used is multiple linear regression which previously conducted validity and realiability. Findings-The result of investigations that service quality and trust simultaneously have a very strong contribution of 75,5% to the customers loyalty, and partially showed that service quality has significant and positive contribution to the customers loyalty of 64,8%. Partially, the trust variable has significant and positive contribution which amounted to 55,9% to the customers loyalty.

Capital Structure and Earnings per Share: An Empirical Analysis of Indian Corporate Sector

2015 ◽  
Vol 5 (3) ◽  
Author(s):  
Harvinder Singh Mand ◽  
Manjit Singh
Keyword(s):  
Capital Structure ◽  
Empirical Analysis ◽  
Corporate Sector ◽  
Independent Variables ◽  
Earnings Per Share ◽  
Panel Data Regression ◽  
Data Regression ◽  
The Impact ◽  
The Relationship ◽  
The Empirical Analysis

This paper intends to measure the impact of capital structure on EPS (earnings per share) in Indian corporate sector. Fifteen control variables along with capital structure have been selected to know their impact on EPS. Panel data regression has been applied to establish the relationship among dependent and independent variables. It is found from the empirical analysis that the relation of capital structure with EPS has been statistically insignificant in Indian corporate sector among all specific industries except telecommunication industry. The results are consistent with Modigliani-Miller approach.

scholarly journals Assessing the Impact of Bank Concentration and Liquidity of Refah Bank Branches on Profitability during the Period1383-190

2014 ◽  
Vol 4 (1) ◽  
pp. 248
Author(s):  
Hossin Ostadi ◽  
Nastran Monsef
Keyword(s):  
Commercial Banks ◽  
Bank Capital ◽  
Factors Affecting ◽  
Bank Branches ◽  
Independent Variables ◽  
Bank Deposits ◽  
The Impact ◽  
Bank Concentration ◽  
Research Period

Profitability is an important factor to show this articledoeswhat is the role of the intermediary bank to collect your savings and allocation of loans.  Given the importance of profitability indicators in this study, the factors affecting the profitability of commercial banks in Iranare analyzedwith emphasis on the degree of centralization and bank deposits. Dependent variable is indicators of profitability (ROE, ROA) and bank deposits, bank size, bank capital, focus on liquidity and banking requirements are independent variables. Correlation analysis and OLS regression are used and the research period is 1381 to 1390 that the country's territory where bank branches.Our results indicate that the effect of bank size on profitability is positive and the increase in bank size on profitability is increased. Impact on the profitability of bank deposits is positive, ie increasing the profitability of bank deposits increased. Finally, the impact of bank concentration on profitability is positive. Increasing the bank's focus profitability increases. Moreover, the results adversely affect the liquidity of the index is profit. 

scholarly journals Be Aware of Burnout! The Role of Changes in Academic Burnout in Problematic Facebook Usage among University Students

2021 ◽  
Vol 18 (15) ◽  
pp. 8055
Author(s):  
Katarzyna Tomaszek ◽  
Agnieszka Muchacka-Cymerman
Keyword(s):  
Regression Coefficient ◽  
Population Sample ◽  
Cross Sectional ◽  
Academic Burnout ◽  
Independent Variables ◽  
Social Motive ◽  
Explained Variance ◽  
The Impact ◽  
The Relationship

Most previous research has examined the relationship between FB addiction and burnout level by conducting cross-sectional studies. Little is known about the impact of changes in burnout on FB addiction in an educational context. Through a two-way longitudinal survey of a student population sample (N = 115), this study examined the influence of changes in academic burnout over time and FB motives and importance (measured at the beginning and the end of the semester) on FB intrusion measured at the end of the academic semester. The findings show that: (1) increases in cynicism and in FB motives and importance significantly predicted time2 FB intrusion; (2) FB importance enhanced the prediction power of changes in the academic burnout total score, exhaustion and personal inefficacy, and reduced the regression coefficient of changes in cynicism; (3) the interaction effects between FB social motive use and changes in academic burnout, as well as between FB importance and personal inefficacy and exhaustion, accounted for a significant change in the explained variance of time2 FB intrusion. About 20–30% of the variance in time2 FB intrusion was explained by all the examined variables and by the interactions between them. The results suggest that changes in academic burnout and FB motives and importance are suppressive variables, as including these variables in the regression model all together changed the significance of the relationship between independent variables and FB intrusion.

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