an examination of the factor structure of the psychopathy checklist

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3.4.2.3 Psychopathy and Instrumentality ................................................. 55 4 Discussion ........................................................................................................ 57 4.1 Limitations .................................................................................................... 75 4.2 Conclusion .................................................................................................... 77 References ................................................................................................................... 83 Appendices ................................................................................................................ 109 Appendix A: PCL:YV Items ............................................................................... 109 Appendix B: Factor Models............................................................................... 110 Appendix C: YFPS Ethics Approval ................................................................. 111 Appendix D: MCFD Ethics Approval ................................................................ 113 Appendix E: Coding Scheme and Guide ......................................................... 114 vi
List of Tables Table 1 Confirmatory factor analysis model fit statistics ............................................ 43 Table 2 Means, standard deviations, and correlation between the PCL:YV and ARF .............................................................................................................. 46 Table 3 Mean discrepancy and standard errors for the three competing PCL:YV factor models ................................................................................................ 53 Table A1 Factor models ............................................................................................ 110 vii
Page 1 and 2: AN EXAMINATION OF THE FACTOR STRUCT
Page 3 and 4: Preface Ethics approval for this re
Page 5: 3 Results .........................
Page 9 and 10: Acknowledgements I owe my deepest g
Page 11 and 12: To my family and friends, Thank you
Page 13 and 14: among female youth populations, the
Page 15 and 16: Third, it has been suggested that t
Page 17 and 18: only a small proportion of conduct-
Page 19 and 20: irresponsible, and antisocial tende
Page 21 and 22: A long line of research has demonst
Page 23 and 24: females. When a model is considered
Page 25 and 26: to do with whether the measure is w
Page 27 and 28: Understanding the factor structure
Page 29 and 30: (Leschied et al., 2001; Moretti, Ca
Page 31 and 32: psychopathic offenders were signifi
Page 33 and 34: instrumental aggression. However, w
Page 35 and 36: Given the relationships between the
Page 37 and 38: associated with self-report will be
Page 39 and 40: 1.4.1 Hypotheses The current thesis
Page 41 and 42: ecords, school records, medical rec
Page 43 and 44: 2.2.3 Instrumental-Reactive Coding
Page 45 and 46: eceiving services from YFPS. Althou
Page 47 and 48: 3 Results 3.1 Coding Reliability In
Page 49 and 50: This was followed by acquaintance v
Page 51 and 52: Figure 2. Percentage of cases by se
Page 53 and 54: index that adjusts for model comple
Page 55 and 56: Item 1 Item 2 Item 4 Item 5 Item 6
Page 57 and 58:
(1-19), 38.7% scored in the moderat
Page 59 and 60:
offences, 28.6% were for revenge or
Page 61 and 62:
association between the dichotomous
Page 63 and 64:
from the original dataset. In other
Page 65 and 66:
in instrumental aggression was acco
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etween the dichotomous psychopathy
Page 69 and 70:
psychopath based on a cut score of
Page 71 and 72:
the three-factor model was unable t
Page 73 and 74:
sample since violent offenders are
Page 75 and 76:
who also concluded that antisocial
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they are less likely to use reactiv
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more strongly related to instrument
Page 81 and 82:
Pickard, 2007; Barry, Pickard, & An
Page 83 and 84:
measure of psychopathy may be limit
Page 85 and 86:
Further, based on the relatively lo
Page 87 and 88:
score. Although this is a valid mea
Page 89 and 90:
Having access to a large sample, we
Page 91 and 92:
demonstrated, the utility of differ
Page 93 and 94:
malleable youth sample may facilita
Page 95 and 96:
Berkowitz, L. (1993). Aggression: I
Page 97 and 98:
Gender differences in mental health
Page 99 and 100:
Edens, J. F., Skeem, J. L., Cruise,
Page 101 and 102:
Frick, P. J., Cornell, A. H., Barry
Page 103 and 104:
Hare, R. D., & Neumann, C. S. (2006
Page 105 and 106:
Jones, S., Cauffman, E., Miller, J.
Page 107 and 108:
Lynam, D. R. (1996). Early identifi
Page 109 and 110:
Murrie, D. C., Cornell, D. G., Kapl
Page 111 and 112:
of the official and self-reported h
Page 113 and 114:
Salekin, R. T., Rogers, R., & Sewel
Page 115 and 116:
Stockdale, K. C., Olver, M. E., Won
Page 117 and 118:
Vitale, J. E., & Newman, J. P. (200
Page 119 and 120:
Xie, H., Cairns, R. B., & Cairns, B
Page 121 and 122:
Appendix B: Factor Models Table A1
Page 123 and 124:
112
Page 125 and 126:
Appendix E: Coding Scheme and Guide
Page 127 and 128:
PART A: OFFENCE CHARACTERISTICS AND
Page 129 and 130:
PART C: WOODWORTH & PORTER`S INSTRU
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