Kernel Optimization in Discriminant Analysis

Summary: Hare's Psychopathy Checklist - Revised (PCL-R; Hare, 1991 ) was originally constructed for use among males in correctional and forensic settings. In this study, the PCL-R protocols of 36 matched pairs of female and male violent offenders were examined with respect to gender differences. The results indicated a few significant differences. By means of discriminant analysis, male Ss were distinguished from their female counterparts through their relatively higher scores on “callous/lack of empathy” (item 8) and “juvenile delinquency” (item 18), whereas the female Ss scored relatively higher on “promiscuous sexual behavior” (item 11). Some sources of bias and possible implications are discussed.

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The Assessment of Fear of Flying: Elaboration and Validation of a Videotape as an Analogous Situation of a Flight1

European Journal of Psychological Assessment ◽

10.1027/1015-5759.13.2.118 ◽

1997 ◽

Vol 13 (2) ◽

pp. 118-130 ◽

Cited By ~ 4

Author(s):

Juan I. Capafóns ◽

Carmen D. Sosa ◽

Manuel Herrero ◽

Conrado Viña

Keyword(s):

Heart Rate ◽

Discriminant Analysis ◽

Post Treatment ◽

Subjective Measure ◽

Physiological Measures ◽

Personal Safety ◽

Metal Detector ◽

Fear Of Flying ◽

Situational Anxiety ◽

Treatment Measures

The results are presented for the validation of a videotape as an analogous situation for a flight. The video includes the most significant elements of a flight by air: confirmation of the flight, packing, going to the airport, checking-in, going through the metal-detector, departure lounge, boarding the plane, demonstration of the personal safety drills, interiors and exteriors during the flight and landing. Two physiological measures are used for validation (heart rate and temperature) and a subjective measure (situational anxiety, SA). The results (both t-tests and the discriminant analysis) indicate that the videotape is able to discriminate between phobics and non-phobics of flying in the three variables considered. With respect to sensitivity in detecting change produced by various treatments in clients with phobia of flying, the results are also satisfactory. A greater differentiation is produced between the pre-post treatment measures, both in subjective and in the physiological measures.

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Discriminant analysis and its role in the classification of airmen.

PsycEXTRA Dataset ◽

10.1037/e402932004-001 ◽

1957 ◽

Cited By ~ 1

Author(s):

John A. Creager

Keyword(s):

Discriminant Analysis

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Profiling Happy People with Optimal Discriminant Analysis: Evolutionary Factors in Positive Psychology

PsycEXTRA Dataset ◽

10.1037/e576832006-001 ◽

2006 ◽

Author(s):

Timothy Ritchie ◽

Sarah E. Wood

Keyword(s):

Discriminant Analysis ◽

Positive Psychology ◽

Happy People ◽

Optimal Discriminant Analysis

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Comparison of Examinees’ and Doctors’ Judgement of Health Status Using Data in an AMHTS

Methods of Information in Medicine ◽

10.1055/s-0038-1635319 ◽

1984 ◽

Vol 23 (01) ◽

pp. 15-22

Author(s):

Y. Sekita ◽

T. Ohta ◽

M. Inoue ◽

H. Takeda

Keyword(s):

Health Status ◽

Discriminant Analysis ◽

Explanatory Power ◽

Laboratory Data ◽

Subjective Symptom ◽

Health Conditions ◽

Testing System ◽

Multiple Discriminant Analysis ◽

Canonical Axis ◽

Using Data

SummaryJudgements of examinees’ health status by doctors and by the examinees themselves are compared applying multiple discriminant analysis. The doctors’ judgements of the examinees’ health status are studied comparatively using laboratory data and the examinees’ subjective symptom data.This data was obtained in an Automated Multiphasic Health Testing System. We discuss the health conditions which are significant for the judgement of doctors about the examinees. The results show that the explanatory power, when using subjective symptom data, is fair in the case of the doctors’ judgement. We found common variables, such as nervousness, lack of perseverance etc., which form the first canonical axis.

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Use of Posterior Probabilities to Evaluate Methods of Discriminant Analysis

Methods of Information in Medicine ◽

10.1055/s-0038-1635316 ◽

1981 ◽

Vol 20 (04) ◽

pp. 207-212 ◽

Cited By ~ 6

Author(s):

J. Hermans ◽

B. van Zomeren ◽

J. W. Raatgever ◽

P. J. Sterk ◽

J. D. F. Habbema

Keyword(s):

Experimental Data ◽

Discriminant Analysis ◽

Posterior Probabilities

By means of a case study the choice between several methods of discriminant analysis is presented. Experimental data of a two-groups problem with one or two variables is analysed. The different methods are compared according to posterior probabilities which can be computed for each subject and which are the basis of discriminant analysis. These posterior probabilities are analysed graphically as well as numerically.

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Discriminant Analysis and its Applications in Epidemiology

Methods of Information in Medicine ◽

10.1055/s-0038-1635283 ◽

1980 ◽

Vol 19 (04) ◽

pp. 220-226 ◽

Cited By ~ 5

Author(s):

P. A. Lachenbruch ◽

W. R. Clarke

Keyword(s):

Discriminant Analysis ◽

Historical Review ◽

Review Article ◽

Logistic Discrimination

This review article discusses current use of discriminant analysis in epidemiology. Contents include historical review, simple extensions and generalizations, examples, evaluation of rules, logistic discrimination, and robustness.

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