Susana Sierra-baigrie - Academia.edu (original) (raw)
Papers by Susana Sierra-baigrie
International Journal of Psychology and Psychological Therapy
The assessment of obsessive beliefs in adolescents. The purpose of this paper was to study the ps... more The assessment of obsessive beliefs in adolescents. The purpose of this paper was to study the psychometric properties of the Obsessional Beliefs Questionnaire-44 (OBQ-44) in nonclinical adolescents. Additionally, the factorial structure of obsessive cognitions and its relationship with obsessive-compulsive symptoms were also analysed. A sample of 508 adolescents was used, 49% of them being boys. The age range was 12-19, with a mean age of 14.9 (SD= 1.6). The results indicated that the OBQ-44 has good psychometric properties. The internal consistency of the subscales ranged from 0.77 to 0.86. Confirmatory factor analyses indicated that both the three-factor (Responsibility/Threat estimation, Importance/Control of thoughts and Perfectionism/Certainty) and the four-factor (Importance/Control of thoughts, Responsibility, Perfectionism/Certainty, and Threat estimation) models showed an adequate fit to the data. Likewise, a statistically significant correlation was observed between obsessive-compulsive symptoms and obsessive beliefs. Consistent with previous literature, obsessive cognitions presented a multifactorial structure and were found to be associated to obsessive-compulsive symptoms. Hence, the OBQ-44 can be considered an adequate measurement instrument for the assessment of dysfunctional beliefs in nonclinical populations.
Las llamadas experiencias psicóticas subclínicas o atenuadas son signos y síntomas psicóticos que... more Las llamadas experiencias psicóticas subclínicas o atenuadas son signos y síntomas psicóticos que no llegan a manifestarse a nivel clínico. Se trata por tanto de un conjunto de síntomas similares a los de la esquizofrenia, que pueden estar presentes en población general, y distribuidas a lo largo de en continuum de gravedad, en cuya parte más extrema se halla la psicosis. El objetivo del presente trabajo fue realizar una revisión exhaustiva de la literatura publicada en los últimos años relacionada con las tasas de prevalencia de las experiencias psicóticas en población adolescente no clínica. Asimismo, se examinó la frecuencia de estas experiencias en adolescentes españoles. Los resultados muestran que las experiencias psicóticas son un fenómeno común y transitorio en la adolescencia, que no se asocia necesariamente con la presencia de psicopatología o riesgo posterior de psicosis. Igualmente, los datos sugieren que el fenotipo psicótico se extiende más allá de las fronteras propuestas por los sistemas clasificatorios internacionales. Futuras líneas de investigación deberían examinar y profundizar en la comprensión de este tipo de experiencias en población adolescente.
International Journal of Clinical and Health Psychology
The main purpose of this instrumental study was to examine the factorial structure and measuremen... more The main purpose of this instrumental study was to examine the factorial structure and measurement invariance of the Bulimic Investigatory Test, Edinburgh (BITE) across gender and age in a community sample of nonclinical adolescents. The sample consisted of 1,794 adolescents (50.2 % males), with a mean age of 14.7 years (SD = 1.72). The results showed that the BITE is a measurement instrument which presents adequate psychometric properties. The level of internal consistency for the Symptom subscale was .95 whereas for the Severity subscale it was .70. The analysis of the dimensionality of the BITE using exploratory factor analysis revealed a one-factor solution. In addition, the confirmatory factor analysis showed adequate fit indices for the one-factor solution. This dimensional structure of the BITE proved to be invariant across gender and age. Statistically significant differences were found as a function of age and gender when the groups were compared in the latent means. Future studies should incorporate the new advances in psychological and educational assessment pertaining to Computerized Adaptive Testing as well as examine the measurement invariance of the tests which assess bulimic symptomatology across cultures.
International Journal of Clinical and Health Psychology
Schizotypy is a psychological construct whose aim is the early detection of participants at a hei... more Schizotypy is a psychological construct whose aim is the early detection of participants at a heightened theoretical risk of transiting toward a psychotic disorder in the future. The early detection of these "at risk" individuals requires using adequate measurement instruments that allow us to make solid and well-founded decisions based on score profi les. The main purpose of this instrumental study was to analyze the internal structure and reliability of the Oviedo Schizotypy Assessment Questionnaire (ESQUIZO-Q) in adolescents. The fi nal sample was composed of a total of 1,438 participants, 693 males (48.2%), with a mean age of 15.9 years (SD = 1.2). The analysis of the underlying internal structure of the ESQUIZO-Q revealed a three-factor solution specifi ed in the following components: Reality distortion, Anhedonia, and Interpersonal disorganization. The levels of internal consistency for the subscales ranged from .61 to .80. The results showed that the ESQUIZO-Q is a self-report with adequate psychometric properties for the assessment of schizotypy and that can be used as a screening method for the detection of adolescents at high risk for psychosis. Future studies should explore in more depth the psychometric properties of the ESQUIZO-Q as well as the development of computerized-adaptive versions.
![Research paper thumbnail of Early psychopathological features in Spanish adolescents [Rasgos psicopatológicos tempranos en adolescentes españoles]](https://attachments.academia-assets.com/41262882/thumbnails/1.jpg)
](
Actas espanolas de psiquiatria
Objective. The main purpose of this study was to analyze the distribution of psychotic-like exper... more Objective. The main purpose of this study was to analyze the distribution of psychotic-like experiences in nonclinical adolescents. Likewise, we studied in depth the role of gender and age in phenotypal expression of these symptoms.
RESUMEN : El objetivo del presente trabajo fue examinar la relación entre la predisposición aluci... more RESUMEN : El objetivo del presente trabajo fue examinar la relación entre la predisposición alucinatoria y la disregulación afectiva en adultos jóvenes españoles. La muestra la formaron un total de 541 participantes (59,3% mujeres) con una edad media de 19,87 (DT = 2,16), a los que se les administró la escala de Presdisposición Alucinatoria de Launnay-Slade Revisada (LSHS-R) y la escala de Depresión, Ansiedad y Estrés-21 (DASS-21). Los resultados mostraron que la puntuación total de la LSHS-R correlacionó de forma positiva y estadísticamente significativa con las puntuaciones correspondientes a las subescalas de la DASS-21. Asimismo, los participantes con puntuaciones elevadas en predisposición alucinatoria informaron de una mayor diregulación emocional y afectiva en comparación con aquellos que puntuaron bajo en dicha escala. Estos resultados son consistentes con los encontrados en la literatura previa y sugieren que la disregulación afectiva, característica
Behavioral Psychology/Psicologia Conductual
Resumen El objetivo de este trabajo fue evaluar las propiedades métricas del "Inventario de ... more Resumen El objetivo de este trabajo fue evaluar las propiedades métricas del "Inventario de ansiedad estado-rasgo" (STAI) en universitarios españoles. La muestra final la formaron un total de 588 participantes (30,8% varones) con una edad media de 20,3 años (DT= 2,7). Los resultados mostraron que un porcentaje elevado de la muestra informó de algún síntoma de ansiedad relacionado con cansancio, pre-ocupación, tristeza, angustia o nerviosismo. Las puntuaciones del STAI presentaron adecuadas propiedades psicométricas. El coeficiente alfa de Cronbach para la pun-tuación total fue 0,93. El análisis de la estructura interna del cuestionario, llevado a mediante un análisis de ecuaciones estructurales de tipo exploratorio, arrojó una posible solución tridimensional o tetradimensional. Se encontraron diferencias estadísticamente significativas en las puntuaciones medias de ansiedad rasgo en función del sexo y la edad. Estos resultados son similares a los encontrados en la literatu...
Anales de Psicología
Resumen: El principal objetivo de este trabajo fue examinar la influencia del género y la edad en... more Resumen: El principal objetivo de este trabajo fue examinar la influencia del género y la edad en la expresión fenotípica de la esquizotipia en dos muestras representativas de adolescentes españoles. La primera muestra la formaron un total de 1618 participantes (M = 15.9 años; DT = 1.2) y la segunda la formaron 1455 adolescentes (M =15.9 años, DT = 1.2). Para la evaluación de los rasgos esquizotípicos se utilizó el ESQUIZO-Q-A: Cuestionario Oviedo para la Evaluación de la Esquizotipia-Abreviado (Fonseca-Pedrero et al., 2010). El género y la edad son dos variables sociodemográficas que influyeron en la expresión de los rasgos esquizotípicos en población adolescente. En relación con el género, en la primera muestra, los varones obtuvieron mayores puntuaciones medias que las mujeres en la dimensión Negativa; en cambio, las mujeres obtuvieron mayores puntuaciones en Desorganización Interpersonal. En la segunda muestra, los varones obtuvieron mayores puntuaciones medias que las mujeres e...
Actas españolas de psiquiatría
The main purpose of this study was to analyze the distribution of psychotic-like experiences in n... more The main purpose of this study was to analyze the distribution of psychotic-like experiences in nonclinical adolescents. Likewise, we studied in depth the role of gender and age in phenotypal expression of these symptoms. A total of 1438 adolescents entered the study, 691 (48.1%) were men, with a mean age of 15.9 years (SD = 1.2). The results indicated that attenuated psychotic symptoms are a very common phenomenon in this age group, since 43% of the sample reported symptoms belonging to magical thinking, ideas of reference, and/or delusion or hallucination experiences, and 8.9% reported 4 or more psychotic-like experiences. Statistical significant differences were found in ideas of reference and paranoid ideation between genders, but not among age groups. Our results coincide with those found in previous studies and have clear implications for a better understanding of these psychological phenomena in the framework of developmental psychopathology, and for the implementation of ear...
The Spanish journal of psychology, 2008
The so-called subclinical or attenuated psychotic experiences are psychotic signs and symptoms wh... more The so-called subclinical or attenuated psychotic experiences are psychotic signs and symptoms which do not manifest themselves at a clinical level. It therefore consists of a group of symptoms similar to those of schizophrenia which can be present in the general population and distributed along a continuum of severity, at whose extreme end we find psychosis. The objective of the
Handbook of Behavior, Food and Nutrition, 2011
Handbook of Behavior, Food and Nutrition, 2011
The present study had two major goals: to explore the relationship between binge eating and copin... more The present study had two major goals: to explore the relationship between binge eating and coping strategies in a sample of Spanish adolescents and to examine the adolescents' concept of binge eating. Two hundred and fifty-nine adolescents from a secondary school completed the Adolescent Coping Scale (ACS; Frydenberg & Lewis, 1993) and the Bulimic Investigatory Test, Edinburgh (BITE; , as well as additional questions regarding the binge-eating episodes. The results show that the adolescents who reported binge eating used more avoidance coping strategies than those who did not engage in this behavior. Adolescents took into account mainly the amount of food eaten when defining a binge with few of them mentioning loss of control in their descriptions. The results of the study have implications for the prevention of this behavior. The development of constructive ways for solving daily problems and coping with stressors may be a possible prevention strategy for this behaviour in adolescence.
The Spanish journal of psychology, 2012
The main objective of the present investigation was to analyze the relationship between selfrepor... more The main objective of the present investigation was to analyze the relationship between selfreported schizotypal and borderline personality traits in a sample of 759 college students (M = 19.63 years; SD = 2.03). For this purpose, the Schizotypal Personality Questionnaire-Brief (SPQ-B; and Borderline Personality Questionnaire (BPQ; were administered. The results showed that schizotypal and borderline features are partially related at subclinical level. The exploratory factor analysis conducted on the subscales revealed a three-factor solution comprised of the following factors: Identity/Interpersonal, Lack of Control and Schizotypal. The canonical correlation analysis showed that schizotypal features and borderline personality traits shared 34.8 % of the variance. The data highlight the overlap between schizotypal and borderline personality traits in nonclinical young adults. Future studies should continue to examine the relationship and the degree of overlap between these traits in community samples.
The Spanish journal of psychology, 2012
The main goal of this research was to examine the reliability and different sources of validity e... more The main goal of this research was to examine the reliability and different sources of validity evidence of the Oviedo Schizotypy Assessment Questionnaire-Abbreviated (ESQUIZO-Q-A) in nonclinical adolescents. The final sample was made up of 1,455 participants, 705 males (48.5%), with a mean age of 15.92 years (SD = 1.18). The internal consistency of the subscales ranged from .62 to .75. The analysis of its internal structure yielded a three-dimensional solution based on the dimensions: Reality Distortion, Anhedonia, and Interpersonal Disorganization. Likewise, the goodness-of-fit indices derived from the Confirmatory Factor Analysis for the hypothesized three-factor model were adequate. The three dimensions of the ESQUIZO-Q-A were significantly correlated with the subscales of the Strengths and Difficulties Questionnaire. The ESQUIZO-Q is a brief and simple self-report with adequate psychometric properties for the assessment of schizotypal traits in nonclinical adolescent populations. Future research should continue to explore the metric quality of the ESQUIZO-Q-A (e.g., sensitivity and specificity) and incorporate the new advances in psychological and educational assessment such as Computerized Adaptive Testing.
The Spanish journal of psychology, 2010
International Journal of Psychology and Psychological Therapy
The assessment of obsessive beliefs in adolescents. The purpose of this paper was to study the ps... more The assessment of obsessive beliefs in adolescents. The purpose of this paper was to study the psychometric properties of the Obsessional Beliefs Questionnaire-44 (OBQ-44) in nonclinical adolescents. Additionally, the factorial structure of obsessive cognitions and its relationship with obsessive-compulsive symptoms were also analysed. A sample of 508 adolescents was used, 49% of them being boys. The age range was 12-19, with a mean age of 14.9 (SD= 1.6). The results indicated that the OBQ-44 has good psychometric properties. The internal consistency of the subscales ranged from 0.77 to 0.86. Confirmatory factor analyses indicated that both the three-factor (Responsibility/Threat estimation, Importance/Control of thoughts and Perfectionism/Certainty) and the four-factor (Importance/Control of thoughts, Responsibility, Perfectionism/Certainty, and Threat estimation) models showed an adequate fit to the data. Likewise, a statistically significant correlation was observed between obsessive-compulsive symptoms and obsessive beliefs. Consistent with previous literature, obsessive cognitions presented a multifactorial structure and were found to be associated to obsessive-compulsive symptoms. Hence, the OBQ-44 can be considered an adequate measurement instrument for the assessment of dysfunctional beliefs in nonclinical populations.
Las llamadas experiencias psicóticas subclínicas o atenuadas son signos y síntomas psicóticos que... more Las llamadas experiencias psicóticas subclínicas o atenuadas son signos y síntomas psicóticos que no llegan a manifestarse a nivel clínico. Se trata por tanto de un conjunto de síntomas similares a los de la esquizofrenia, que pueden estar presentes en población general, y distribuidas a lo largo de en continuum de gravedad, en cuya parte más extrema se halla la psicosis. El objetivo del presente trabajo fue realizar una revisión exhaustiva de la literatura publicada en los últimos años relacionada con las tasas de prevalencia de las experiencias psicóticas en población adolescente no clínica. Asimismo, se examinó la frecuencia de estas experiencias en adolescentes españoles. Los resultados muestran que las experiencias psicóticas son un fenómeno común y transitorio en la adolescencia, que no se asocia necesariamente con la presencia de psicopatología o riesgo posterior de psicosis. Igualmente, los datos sugieren que el fenotipo psicótico se extiende más allá de las fronteras propuestas por los sistemas clasificatorios internacionales. Futuras líneas de investigación deberían examinar y profundizar en la comprensión de este tipo de experiencias en población adolescente.
International Journal of Clinical and Health Psychology
The main purpose of this instrumental study was to examine the factorial structure and measuremen... more The main purpose of this instrumental study was to examine the factorial structure and measurement invariance of the Bulimic Investigatory Test, Edinburgh (BITE) across gender and age in a community sample of nonclinical adolescents. The sample consisted of 1,794 adolescents (50.2 % males), with a mean age of 14.7 years (SD = 1.72). The results showed that the BITE is a measurement instrument which presents adequate psychometric properties. The level of internal consistency for the Symptom subscale was .95 whereas for the Severity subscale it was .70. The analysis of the dimensionality of the BITE using exploratory factor analysis revealed a one-factor solution. In addition, the confirmatory factor analysis showed adequate fit indices for the one-factor solution. This dimensional structure of the BITE proved to be invariant across gender and age. Statistically significant differences were found as a function of age and gender when the groups were compared in the latent means. Future studies should incorporate the new advances in psychological and educational assessment pertaining to Computerized Adaptive Testing as well as examine the measurement invariance of the tests which assess bulimic symptomatology across cultures.
International Journal of Clinical and Health Psychology
Schizotypy is a psychological construct whose aim is the early detection of participants at a hei... more Schizotypy is a psychological construct whose aim is the early detection of participants at a heightened theoretical risk of transiting toward a psychotic disorder in the future. The early detection of these "at risk" individuals requires using adequate measurement instruments that allow us to make solid and well-founded decisions based on score profi les. The main purpose of this instrumental study was to analyze the internal structure and reliability of the Oviedo Schizotypy Assessment Questionnaire (ESQUIZO-Q) in adolescents. The fi nal sample was composed of a total of 1,438 participants, 693 males (48.2%), with a mean age of 15.9 years (SD = 1.2). The analysis of the underlying internal structure of the ESQUIZO-Q revealed a three-factor solution specifi ed in the following components: Reality distortion, Anhedonia, and Interpersonal disorganization. The levels of internal consistency for the subscales ranged from .61 to .80. The results showed that the ESQUIZO-Q is a self-report with adequate psychometric properties for the assessment of schizotypy and that can be used as a screening method for the detection of adolescents at high risk for psychosis. Future studies should explore in more depth the psychometric properties of the ESQUIZO-Q as well as the development of computerized-adaptive versions.
Actas espanolas de psiquiatria
Objective. The main purpose of this study was to analyze the distribution of psychotic-like exper... more Objective. The main purpose of this study was to analyze the distribution of psychotic-like experiences in nonclinical adolescents. Likewise, we studied in depth the role of gender and age in phenotypal expression of these symptoms.
RESUMEN : El objetivo del presente trabajo fue examinar la relación entre la predisposición aluci... more RESUMEN : El objetivo del presente trabajo fue examinar la relación entre la predisposición alucinatoria y la disregulación afectiva en adultos jóvenes españoles. La muestra la formaron un total de 541 participantes (59,3% mujeres) con una edad media de 19,87 (DT = 2,16), a los que se les administró la escala de Presdisposición Alucinatoria de Launnay-Slade Revisada (LSHS-R) y la escala de Depresión, Ansiedad y Estrés-21 (DASS-21). Los resultados mostraron que la puntuación total de la LSHS-R correlacionó de forma positiva y estadísticamente significativa con las puntuaciones correspondientes a las subescalas de la DASS-21. Asimismo, los participantes con puntuaciones elevadas en predisposición alucinatoria informaron de una mayor diregulación emocional y afectiva en comparación con aquellos que puntuaron bajo en dicha escala. Estos resultados son consistentes con los encontrados en la literatura previa y sugieren que la disregulación afectiva, característica
Behavioral Psychology/Psicologia Conductual
Resumen El objetivo de este trabajo fue evaluar las propiedades métricas del "Inventario de ... more Resumen El objetivo de este trabajo fue evaluar las propiedades métricas del "Inventario de ansiedad estado-rasgo" (STAI) en universitarios españoles. La muestra final la formaron un total de 588 participantes (30,8% varones) con una edad media de 20,3 años (DT= 2,7). Los resultados mostraron que un porcentaje elevado de la muestra informó de algún síntoma de ansiedad relacionado con cansancio, pre-ocupación, tristeza, angustia o nerviosismo. Las puntuaciones del STAI presentaron adecuadas propiedades psicométricas. El coeficiente alfa de Cronbach para la pun-tuación total fue 0,93. El análisis de la estructura interna del cuestionario, llevado a mediante un análisis de ecuaciones estructurales de tipo exploratorio, arrojó una posible solución tridimensional o tetradimensional. Se encontraron diferencias estadísticamente significativas en las puntuaciones medias de ansiedad rasgo en función del sexo y la edad. Estos resultados son similares a los encontrados en la literatu...
Anales de Psicología
Resumen: El principal objetivo de este trabajo fue examinar la influencia del género y la edad en... more Resumen: El principal objetivo de este trabajo fue examinar la influencia del género y la edad en la expresión fenotípica de la esquizotipia en dos muestras representativas de adolescentes españoles. La primera muestra la formaron un total de 1618 participantes (M = 15.9 años; DT = 1.2) y la segunda la formaron 1455 adolescentes (M =15.9 años, DT = 1.2). Para la evaluación de los rasgos esquizotípicos se utilizó el ESQUIZO-Q-A: Cuestionario Oviedo para la Evaluación de la Esquizotipia-Abreviado (Fonseca-Pedrero et al., 2010). El género y la edad son dos variables sociodemográficas que influyeron en la expresión de los rasgos esquizotípicos en población adolescente. En relación con el género, en la primera muestra, los varones obtuvieron mayores puntuaciones medias que las mujeres en la dimensión Negativa; en cambio, las mujeres obtuvieron mayores puntuaciones en Desorganización Interpersonal. En la segunda muestra, los varones obtuvieron mayores puntuaciones medias que las mujeres e...
Actas españolas de psiquiatría
The main purpose of this study was to analyze the distribution of psychotic-like experiences in n... more The main purpose of this study was to analyze the distribution of psychotic-like experiences in nonclinical adolescents. Likewise, we studied in depth the role of gender and age in phenotypal expression of these symptoms. A total of 1438 adolescents entered the study, 691 (48.1%) were men, with a mean age of 15.9 years (SD = 1.2). The results indicated that attenuated psychotic symptoms are a very common phenomenon in this age group, since 43% of the sample reported symptoms belonging to magical thinking, ideas of reference, and/or delusion or hallucination experiences, and 8.9% reported 4 or more psychotic-like experiences. Statistical significant differences were found in ideas of reference and paranoid ideation between genders, but not among age groups. Our results coincide with those found in previous studies and have clear implications for a better understanding of these psychological phenomena in the framework of developmental psychopathology, and for the implementation of ear...
The Spanish journal of psychology, 2008
The so-called subclinical or attenuated psychotic experiences are psychotic signs and symptoms wh... more The so-called subclinical or attenuated psychotic experiences are psychotic signs and symptoms which do not manifest themselves at a clinical level. It therefore consists of a group of symptoms similar to those of schizophrenia which can be present in the general population and distributed along a continuum of severity, at whose extreme end we find psychosis. The objective of the
Handbook of Behavior, Food and Nutrition, 2011
Handbook of Behavior, Food and Nutrition, 2011
The present study had two major goals: to explore the relationship between binge eating and copin... more The present study had two major goals: to explore the relationship between binge eating and coping strategies in a sample of Spanish adolescents and to examine the adolescents' concept of binge eating. Two hundred and fifty-nine adolescents from a secondary school completed the Adolescent Coping Scale (ACS; Frydenberg & Lewis, 1993) and the Bulimic Investigatory Test, Edinburgh (BITE; , as well as additional questions regarding the binge-eating episodes. The results show that the adolescents who reported binge eating used more avoidance coping strategies than those who did not engage in this behavior. Adolescents took into account mainly the amount of food eaten when defining a binge with few of them mentioning loss of control in their descriptions. The results of the study have implications for the prevention of this behavior. The development of constructive ways for solving daily problems and coping with stressors may be a possible prevention strategy for this behaviour in adolescence.
The Spanish journal of psychology, 2012
The main objective of the present investigation was to analyze the relationship between selfrepor... more The main objective of the present investigation was to analyze the relationship between selfreported schizotypal and borderline personality traits in a sample of 759 college students (M = 19.63 years; SD = 2.03). For this purpose, the Schizotypal Personality Questionnaire-Brief (SPQ-B; and Borderline Personality Questionnaire (BPQ; were administered. The results showed that schizotypal and borderline features are partially related at subclinical level. The exploratory factor analysis conducted on the subscales revealed a three-factor solution comprised of the following factors: Identity/Interpersonal, Lack of Control and Schizotypal. The canonical correlation analysis showed that schizotypal features and borderline personality traits shared 34.8 % of the variance. The data highlight the overlap between schizotypal and borderline personality traits in nonclinical young adults. Future studies should continue to examine the relationship and the degree of overlap between these traits in community samples.
The Spanish journal of psychology, 2012
The main goal of this research was to examine the reliability and different sources of validity e... more The main goal of this research was to examine the reliability and different sources of validity evidence of the Oviedo Schizotypy Assessment Questionnaire-Abbreviated (ESQUIZO-Q-A) in nonclinical adolescents. The final sample was made up of 1,455 participants, 705 males (48.5%), with a mean age of 15.92 years (SD = 1.18). The internal consistency of the subscales ranged from .62 to .75. The analysis of its internal structure yielded a three-dimensional solution based on the dimensions: Reality Distortion, Anhedonia, and Interpersonal Disorganization. Likewise, the goodness-of-fit indices derived from the Confirmatory Factor Analysis for the hypothesized three-factor model were adequate. The three dimensions of the ESQUIZO-Q-A were significantly correlated with the subscales of the Strengths and Difficulties Questionnaire. The ESQUIZO-Q is a brief and simple self-report with adequate psychometric properties for the assessment of schizotypal traits in nonclinical adolescent populations. Future research should continue to explore the metric quality of the ESQUIZO-Q-A (e.g., sensitivity and specificity) and incorporate the new advances in psychological and educational assessment such as Computerized Adaptive Testing.
The Spanish journal of psychology, 2010