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Psychometric properties of the Inventory of Interpersonal Problems (IIP-C) used with a clinical sample of adolescents: a preliminary study

Pravin Israel
Pravin Israel
 y 
Johannes Hendrik Langeveld
Johannes Hendrik Langeveld
   | 27 abr 2021
Scandinavian Journal of Child and Adolescent Psychiatry and Psychology's Cover Image
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Publicado en línea: 27 abr 2021
Páginas: 87 - 95
DOI: https://doi.org/10.21307/sjcapp-2021-010
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© 2021 Pravin Israel et al., published by sciendo.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

FIGURE 1A.

The hypothesized bi-factor model of the IIP-C used with adolescents
The hypothesized bi-factor model of the IIP-C used with adolescents

FIGURE 1B.

Standardized coefficients of the bi-factor CFA solution with Distress PA = Domineering; BC = Vindictive; DE = Cold; FG = Socially Avoidant; HI = Nonassertive; JK = Exploitable; LM = Overly Nurturant; NO = Intrusive.
Standardized coefficients of the bi-factor CFA solution with Distress PA = Domineering; BC = Vindictive; DE = Cold; FG = Socially Avoidant; HI = Nonassertive; JK = Exploitable; LM = Overly Nurturant; NO = Intrusive.

FIGURE 2.

The Circumplex structure of the IIP-C used with adolescents PA = Domineering; BC = Vindictive; DE = Cold; FG = Socially Avoidant; HI = Nonassertive; JK = Exploitable; LM = Overly Nurturant; NO = Intrusive.
The Circumplex structure of the IIP-C used with adolescents PA = Domineering; BC = Vindictive; DE = Cold; FG = Socially Avoidant; HI = Nonassertive; JK = Exploitable; LM = Overly Nurturant; NO = Intrusive.

Correlation between IIP-C scales and YSR broadband scales and Social Problems

PA = Domineering BC = Vindictive DE = Cold FG = Socially avoidant HI = Nonassertive JK = Exploitable LM = Overly nurturant NO = Intrusive
Internalizing Problems 0.287 0.368 0.48 0.539 0.52 0.464 0.623 0.144
Externalizing Problems 0.517 0.675 0.327 0.15 0.053 0.072 0.295 0.338
Social Problems 0.306 0.283 0.362 0.36 0.238 0.097 0.2 0.002
Internalizing Problems -0.205 --0.105 0.093 0.207 0.172 0.041 0.163 -0.272
Externalizing Problems 0.209 0.455 0.102 -0.195 -0.324 -0.267 -0.041 0.097
Social Problems 0.046 0.036 0.189 0.223 0.052 -0.143 -0.084 -0.23

Cronbach’s alpha, inter-item correlations and item-total correlations

Mean (SD) Inter-item correlation average Item-total correlation range Cronbach’s alpha
PA 7.46 (4.86) 0.24 0.09 – 0.53 0.69
BC 8.7 (5.64) 0.26 0.15 – 0.65 0.74
DE 7.98 (5.84) 0.30 0.24 – 0.70 0.78
FG 11.79 (6.97) 0.36 0.28 – 0.71 0.82
HI 12.3 (7.65) 0.40 0.49 – 0.72 0.84
JK 10.87 (6.83) 0.35 0.31 – 0.67 0.81
LM 10.65 (5.49) 0.25 0.23 – 0.43 0.72
NO 8.93 ( 5.86) 0.24 0.24 – 0.55 0.71
Total 78.79 (34.02) 0.30 0.16 – 0.65 0.93

Intercorrelations of IIP-C: above diagonal are raw scores and below are ipsative scores

PA BC DE FG HI JK LM NO
PA 1 .661** .494** .312* 0.124 -0.072 0.207 0.22
BC .459** 1 .693** .412** .319* -0.023 0.228 0.184
DE -0.031 .346** 1 .768** .691** .295* .394** 0.152
FG -.293* -0.218 .330** 1 .771** .498** .522** 0.137
HI -.622** -.464** 0.157 .346** 1 .713** .622** 0.084
JK -.503** -.714** -.524** -0.088 .373** 1 .729** .280*
LM -0.117 -.356** -.647** -.376** -0.146 .340** 1 .470**
NO 0.156 0.04 -.421** -.581** -.616** -0.057 .277* 1
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Medicine, Basic Medical Science, other
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