Discriminant Effectiveness of Psychological State Measures in Predicting Performance Outcome in Karate Competition

Male Shotokan karate players (karateka) ( N = 208) completed the Competitive State Anxiety Inventory-2 and the Profile of Mood States about 40 minutes before a competition. Single-factor multivariate analysis of variance of preperformance mood and anxiety scores indicated significant differences between winning and losing competitors. Winners scored higher on Vigor, Anger, and Self-confidence, and lower on Tension, Depression, Fatigue, Confusion, Cognitive Anxiety, and Somatic Anxiety. Discriminant function analysis showed that 91.96% of participants could be correctly classified as winners or losers on the basis of preperformance mood scores. This figure rose to 93.47% when scores on the anxiety subscales were also included in the discriminant function analysis. Anxiety scores alone produced 78.89% discrimination. Mood profiles for winning karateka were in line with the “mental health” profile of Morgan except for above-average scores on Anger. This result supports the view of McGowan and Miller that anger may facilitate performance in karate competition. The capacity of measures of psychological state to discriminate performance exceeds previous reports, suggesting that karate performance may be exceptionally mood-dependent. These results suggest that interventions which increase scores on Vigor and Anger and reduce scores on Tension, Depression, Fatigue, and Confusion may be particularly efficacious for Shotokan karate performance.

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Discriminant Effectiveness of Psychological State Measures in Predicting Selection during Field Hockey Trials

Perceptual and Motor Skills ◽

10.2466/pms.1996.82.2.371 ◽

1996 ◽

Vol 82 (2) ◽

pp. 371-377 ◽

Cited By ~ 10

Author(s):

Peter C. Terry ◽

Emma L. Youngs

Keyword(s):

Discriminant Function ◽

Discriminant Function Analysis ◽

State Anxiety ◽

Function Analysis ◽

Team Sports ◽

Psychological State ◽

Profile Of Mood States ◽

Field Hockey ◽

Long Duration ◽

Hockey Players

Field hockey players ( N=128) completed the Competitive State Anxiety Inventory-2 and the Profile of Mood States about 45 min. before a British Universities trial. Single-factor multivariate analysis of variance indicated no significant differences between selected and nonselected players for any preperformance mood or anxiety measure. Discriminant function analysis showed that 74 participants (57.81%) could be correctly classified as selected or nonselected players on the basis of preperformance mood scores. This figure rose to 83 participants (64.84%) when scores on the anxiety subscales were also included in the discriminant function analysis. Anxiety scores alone discriminated 71 participants (55.47%). These results concur with earlier proposals of Terry that psychological state measures decline in predictive effectiveness in long duration, open skill team sports.

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Injury, Anxiety, and Mood in Competitive Gymnasts

Perceptual and Motor Skills ◽

10.1177/003151259407800351 ◽

1994 ◽

Vol 78 (3) ◽

pp. 955-962 ◽

Cited By ~ 8

Author(s):

Gregory S. Kolt ◽

Robert J. Kirkby

Keyword(s):

Discriminant Function ◽

Discriminant Function Analysis ◽

State Anxiety ◽

Psychological Factors ◽

Function Analysis ◽

Mood States ◽

Profile Of Mood States ◽

Self Confidence ◽

Cognitive Anxiety ◽

Female Gymnasts

Psychological factors related to injury were investigated in 115 competitive gymnasts. The subjects were administered the Profile of Mood States-Bipolar Form (POMS-BI) and Competitive State Anxiety Inventory-2 (CSAI-2). Direct discriminant function analysis showed that the best predictors for distinguishing between gymnasts with four or more injuries and those with fewer than four injuries were CSAI-2 Cognitive Anxiety and the POMS-BI Composed-Anxious and Energetic-Tired scores. The more-injured gymnasts were more anxious and tired, and reported higher scores on the CSAI-2 Cognitive Anxiety scale. Males could be differentiated from females by scores on the CSAI-2 Self-confidence and the POMS-BI Composed-Anxious, Confident-Unsure, Energetic-Tired, and Clearheaded-Confused scales. The female gymnasts were more anxious, unsure, tired, and confused, and reported lower levels of CSAI-2 Self-confidence. The findings were interpreted as further evidence of the anxiety-injury link in athletes.

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Anxiety, Self-Confidence and Performance in Tae Kwon-Do

Perceptual and Motor Skills ◽

10.2466/pms.1997.85.3f.1275 ◽

1997 ◽

Vol 85 (3_suppl) ◽

pp. 1275-1278 ◽

Cited By ~ 15

Author(s):

Chris Chapman ◽

Andrew M. Lane ◽

John H. Brierley ◽

Peter C. Terry

Keyword(s):

Multivariate Analysis ◽

Analysis Of Variance ◽

Discriminant Function ◽

Discriminant Function Analysis ◽

State Anxiety ◽

Function Analysis ◽

Tae Kwon Do ◽

Somatic Anxiety ◽

Self Confidence ◽

And Performance

142 male Tae Kwon-do competitors completed the Competitive State Anxiety Inventory–2 about 1 hr. before competition. Multivariate analysis of variance showed that the players who won reported lower cognitive and somatic anxiety and higher self-confidence than those who lost. Discriminant function analysis indicated that 89 (62.68%) participants could be correctly classified as winners or losers on the basis of their precompetition Competitive State Anxiety Inventory–2 scores. The findings concur with previous research in karate.

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Predicting Performance and Persistence in Hospice Volunteers

Psychological Reports ◽

10.2466/pr0.1989.65.2.467 ◽

1989 ◽

Vol 65 (2) ◽

pp. 467-472 ◽

Cited By ~ 19

Author(s):

Barbara Lafer

Keyword(s):

Discriminant Function ◽

Discriminant Function Analysis ◽

Death Anxiety ◽

Function Analysis ◽

Screening Procedure ◽

Personality Measures ◽

Hospice Volunteers ◽

Predicting Performance ◽

Selection Of

In a group of 75 prospective hospice volunteers, screened and accepted for training, those rated as performing satisfactorily differed significantly from those rated as performing unsatisfactorily or those who dropped out six months after completion of training. Discriminant function analysis indicated that a function consisting of death anxiety, tolerance, and flexibility significantly differentiated the three groups of volunteers. The satisfactory persisters demonstrated lower death anxiety, higher tolerance, and more moderate flexibility than unsatisfactory persisters or dropouts. Fifty (67%) of the 75 cases were correctly classified. These findings suggest that the inclusion of personality measures in the screening procedure could be useful in the selection of hospice volunteers.

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Measures of Anxiety among Tennis Players in Singles and Doubles Matches

Perceptual and Motor Skills ◽

10.2466/pms.1996.83.2.595 ◽

1996 ◽

Vol 83 (2) ◽

pp. 595-603 ◽

Cited By ~ 13

Author(s):

Peter C. Terry ◽

Jennifer A. Cox ◽

Andrew M. Lane ◽

Costas I. Karageorghis

Keyword(s):

Multivariate Analysis ◽

Analysis Of Variance ◽

Discriminant Function Analysis ◽

State Anxiety ◽

Function Analysis ◽

Male And Female ◽

Tennis Players ◽

Self Confidence ◽

Cognitive Anxiety ◽

Outcome Scores

Male and female tennis players ( N = 100) completed the Competitive State Anxiety Inventory-2 about 1 hr. before playing singles and doubles matches. Multivariate analysis of variance of anxiety and self-confidence responses by match result indicated that winners of singles matches bad significantly lower scores on Cognitive Anxiety and higher ones on Self-confidence than losers. Winners of doubles matches had significantly higher Self-confidence scores than losers. Discriminant function analysis indicated that 72% of results for singles matches and 70% of results for doubles matches could be correctly classified from responses to the precompetition measures. A comparison of anxiety responses by playing condition indicated that, irrespective of the match outcome, scores on Cognitive and Somatic Anxiety were higher and scores on Self-confidence were lower before playing singles than before playing doubles. The findings suggest that precompetition scores on measures of anxiety provide significant indicators of performance in tennis but that responses vary for singles and doubles play.

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The relationship between masculine financial identity, workgroup aggression normalization, and incivility perpetration: A discriminant function analysis

PsycEXTRA Dataset ◽

10.1037/e572992012-352 ◽

2010 ◽

Author(s):

T. Bauerle ◽

V. J. Magley

Keyword(s):

Discriminant Function ◽

Discriminant Function Analysis ◽

Function Analysis ◽

The Relationship ◽

Financial Identity

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Diagnoses Generated by Numerical Taxonomic Methods Applied to Standard Blood Variables

Methods of Information in Medicine ◽

10.1055/s-0038-1635282 ◽

1980 ◽

Vol 19 (04) ◽

pp. 205-209

Author(s):

L. A. Abbott ◽

J. B. Mitton

Keyword(s):

Liver Cirrhosis ◽

Renal Disease ◽

Principal Components Analysis ◽

Discriminant Function ◽

Principal Components ◽

Discriminant Function Analysis ◽

Chronic Renal Disease ◽

Function Analysis ◽

Infectious Hepatitis ◽

Components Analysis

Data taken from the blood of 262 patients diagnosed for malabsorption, elective cholecystectomy, acute cholecystitis, infectious hepatitis, liver cirrhosis, or chronic renal disease were analyzed with three numerical taxonomy (NT) methods : cluster analysis, principal components analysis, and discriminant function analysis. Principal components analysis revealed discrete clusters of patients suffering from chronic renal disease, liver cirrhosis, and infectious hepatitis, which could be displayed by NT clustering as well as by plotting, but other disease groups were poorly defined. Sharper resolution of the same disease groups was attained by discriminant function analysis.

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Description of Echolocation Call Parameters for Urban Bats in Vietnam as a Step Towards a More Integrated Acoustic Monitoring of Urban Wildlife in Southeast Asia

Diversity ◽

10.3390/d13010018 ◽

2021 ◽

Vol 13 (1) ◽

pp. 18

Author(s):

Long Kim Pham ◽

Bang Van Tran ◽

Quy Tan Le ◽

Trung Thanh Nguyen ◽

Christian C. Voigt

Keyword(s):

Discriminant Function ◽

Discriminant Function Analysis ◽

Function Analysis ◽

Quantitative Description ◽

Southeast Asian ◽

Asian Countries ◽

Echolocation Call ◽

Echolocation Calls ◽

Pilot Work ◽

Southeast Asian Countries

This study is the first step towards more systematic monitoring of urban bat fauna in Vietnam and other Southeast Asian countries by collecting bat echolocation call parameters in Ho Chi Minh and Tra Vinh cities. We captured urban bats and then recorded echolocation calls after releasing in a tent. Additional bat’s echolocation calls from the free-flying bats were recorded at the site where we captured bat. We used the obtained echolocation call parameters for a discriminant function analysis to test the accuracy of classifying these species based on their echolocation call parameters. Data from this pilot work revealed a low level of diversity for the studied bat assemblages. Additionally, the discriminant function analysis successfully classified bats to four bat species with an accuracy of >87.4%. On average, species assignments were correct for all calls from Taphozous melanopogon (100% success rate), for 70% of calls from Pipistrellus javanicus, for 80.8% of calls from Myotis hasseltii and 67.3% of calls from Scotophilus kuhlii. Our study comprises the first quantitative description of echolocation call parameters for urban bats of Vietnam. The success in classifying urban bats based on their echolocation call parameters provides a promising baseline for monitoring the effect of urbanization on bat assemblages in Vietnam and potentially also other Southeast Asian countries.

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