Psychometric Network Analysis of the Problematic Pornography Use Scale (PPUS) in Peruvian Adults

Figures & data

Figure 1 Network structure of the UPPS items.

Note: All partial correlations are positive.

Table 1 Network Loads of the UPPS Items Identified Unidimensionally by the EGA

Items	Factor
p1: Veo pornografía cuando he estado de mal humor./I watch pornography when I have been in a bad mood.	0.232
p2: Veo pornografía cuando me siento deprimido (a)./I watch pornographic materials when am feeling despondent.	0.311
p3: Veo pornografía para escapar de sentimientos de tristeza o para aliviar sentimientos negativos./I use pornographic materials to escape my grief or to free myself from negative feelings.	0.317
p4: Continúo mirando pornográfico pese a que intento dejar de hacerlo./I keep on watching pornographic materials even though I intend to stop.	0.287
p5: Arriesgo o pongo en peligro algo importante para mí (como una relación sentimental, un empleo o mis estudios) debido al consumo de la pornográfica./I risked or put in jeopardy a significant relationship, place of employment, educational or career opportunity because of the use of pornographic materials.	0.195
p6: Veo pornografía a pesar del peligro de dañar mis capacidades físicas (como, por ejemplo, dificultad para lograr una erección o para alcanzar un orgasmo no hay pornografía de por medio)./I continued using pornography despite the danger of harming myself physically (for example: difficulty getting an erection due to extensive use, difficulty reaching an orgasm in ways that do not include pornography).	0.241
p7: Mi uso de pornografía ha causado algunos problemas en mis relaciones con otras personas./Using pornography has created significant problems in my personal relationships with other people, in social situations, at work or in other important aspects of my life.	0.198
p8: No he tenido éxito en mis esfuerzos de reducir o controlar la frecuencia con la que utilizo pornografía./I have been unsuccessful in my efforts to reduce or control the frequency I use pornography in my life.	0.259
p9: Pienso a menudo en la pornografía./I often think about pornography.	0.263
p10: Siento que pierdo tiempo pensando en pornografía./I spend too much time being involved in thoughts about pornography.	0.201
p11: Empleo más tiempo de lo debido planeando ver pornografía./I spend too much time planning to and using pornography.	0.440
p12: Me siento incapaz de dejar de ver pornografía/I feel I cannot stop watching pornography.	0.330

Figure 2 Centrality indexes of the EGA variables.

Note: Centrality indexes of the EGA variables.

Figure 3 Stability of PPUS items.

Note: The nodes represent each replica of the item in the original dimension specified by EGA.

Table 2 Factor Analysis (Oblique and Bifactor Model) and Internal Consistency

Items	Oblique Model (Zolezzi)			Bifactor
	F1	F2	F3	SF1	SF2	SF3	OF
p1	0.852			0.384			0.743
p2	0.934			0.551			0.799
p3	0.957			0.436			0.829
p11		0.967			0.095		0.962
p5		0.719			0.656		0.704
p9		0.835			−0.077		0.841
p7		0.716			0.217		0.703
p10		0.717			0.033		0.715
p12		0.937			−0.043		0.942
p8			0.809			0.365	0.765
p4			0.868			0.287	0.824
p6			0.848			0.128	0.815
F1	–
F2	0.862	–
F3	0.822	0.951	–
χ2 /df	2359				2359
CFI	0.992				0.996
TLI	0.990				0.994
SRMR	0.028				0.020
ECV							0.851
PUC							0.682
HH.G							0.973
ωH							0.939
oh H.SF1				0.235
oh H.SF2					0.03
oh H.SF3						0.084
λ average.OF							0.804
λ average.SF1				0.457
λ average.SF2					0.147
λ average.SF3						0.26
λ average.SF				0.288
Ord. α							0.958
oh							0.935
Ave							0.676

Notes: λaverage: value and the fuzzy; SF1, SF2, SF3, OF: Bifactor model with three factors with the general factors correlated with the 12 items; F1,F2,F3: Three-factor oblique model.

Abbreviations: X², Chi-square; df, degree of freedom; CFI, comparative fit index; TLI, Taker Lewis index; SRMR, Standardized Root Mean Square Residual; ECV, explained common variance; PUC, percentage of uncontaminated correlations; ωH, Omega Hierarchical; ord α, ordinal α.

Figure 4 Bifactor analysis of the PPUS.

Note: Bifactor model.