A modified mean-variance feature-screening procedure for ultrahigh-dimensional 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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