Sánchez Iglesias, Iván

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First Name
Last Name
Sánchez Iglesias
Universidad Complutense de Madrid
Faculty / Institute
Psicobiología y Metodología en Ciencias del Comportamiento
Metodología de las Ciencias del Comportamiento
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Now showing 1 - 10 of 17
  • Publication
    Evaluación de la usabilidad de “Microsoft Teams”: herramienta para el aprendizaje grupal?
    (2022-12-14) Antino, Mirko; Rodríguez Muñoz, Alfredo; Ruiz-Zorrilla Blanco, Paula; Sánchez Iglesias, Iván; Reyes Luján, Juan José
    La herramienta de Microsoft Teams es descrita por sus creadores como “una aplicación de colaboración”, la cual permite a un equipo de personas reunirse de forma virtual, enviar mensajes a través de un chat, compartir archivos y conversaciones en distintos canales, planificar distintos eventos a través de un calendario e integrar otras aplicaciones a las funciones anteriores. Por todo eso, se trata de una herramienta multifunción, diseñada para facilitar el trabajo en remoto de un equipo de personas. En este contexto, el presente proyecto tiene como objeto evaluar la usabilidad, tanto individual como colectiva, de esta herramienta
  • Publication
    Spanish Validation and Scoring of the Internet Gaming Disorder Scale - Short-Form (IGDS9-SF)
    (Cambridge University Press, 2020-06-19) Fernández Arias, Ignacio Gabino; Sánchez Iglesias, Iván; Bernaldo De Quirós Aragón, Mónica; Labrador Encinas, Francisco Javier; Estupiñá Puig, Francisco José; Labrador Méndez, Marta Isabel; Fernández Arias, Ignacio Gabino
    Since the inclusion of the Internet Gaming Disorder (IGD) in the Diagnostic and statistical manual of mental disorders (5th ed.) (DSM-5), the Internet Gaming Disorder Scale-Short Form (IGDS9-SF), a short nine items test, has become one of the most used standardized instruments for its psychometric evaluation. This study presents a validation and psychometric evaluation of the Spanish version of the IGDS9-SF. A sample of 2173 videogame players between 12 and 22 years old, comprising both genders, was employed, achieved with a randomized selection process from educational institutions in the city of Madrid. Participants completed the adapted version of the IGDS9-SF, the General Health Questionnaire (GHQ-12) and a negative cognitions scale associated with videogame use, as well as sociodemographic data and frequency of videogame play. A unifactorial structure with sufficient reliability and internal consistency was found through exploratory and confirmatory analyses. In addition, the instrument was found to have good construct validity; the scoring of the IGDS9-SF were found to show a positive association with gaming frequency, with general health problems, and to a greater extent, with problematic cognitions with regard to videogames. Factorial invariance was found concerning the age of participants. However, even though the factorial structure was consistent across genders, neither metric nor scalar invariance were found; for this reason, we present a scale for the whole sample and a different one for gender. These results suggest that this Spanish version of the IGDS9-SF is a reliable and valid instrument, useful to evaluate the severity of IGD in Spanish students, and we provide a scoring scale for measurement purposes.
  • Publication
    Evaluating Risk Propensity Using an Objective Instrument
    (2011-05-01) Sueiro Abad, Manuel J.; Moncayo de Tella, Alejandra; Sánchez Iglesias, Iván
    Risk propensity is the stable tendency to choose options with a lower probability of success, but greater rewards. Its evaluation has been approached from various perspectives: from self-report questionnaires to objective tests. Self-report questionnaires have often been criticized due to interference from voluntary and involuntary biases, in addition to their lack of predictive value. Objective tests, on the other hand, require resources that make them difficult to administer to large samples. This paper presents an easy-to-administer, 30-item risk propensity test. Each item is itself an objective test describing a hypothetical situation in which the subject must choose between three options, each with a different gain function but equivalent in expected value. To assess its psychometric fit, the questionnaire was administered to 222 subjects, and we performed a test of its reliability as well as exploratory factor analysis. The results supported a three-factor model of risk (Sports and Gambling, Long-term Plans, and Loss Management). After making the necessary adjustments and incorporating a global factor of risk propensity, confirmatory factor analysis was done, revealing that the data exhibited adequate goodness of fit.
  • Publication
    Measuring the Desire for Control: a Spanish Version of Burger and Cooper's Scale
    (2012-11) Miguel Calvo, Jesús María de; Martín Sanz, Noemy; Sánchez Iglesias, Iván; Ruiz Díaz, Miguel Ángel
    The following study will present findings on the validity of the adaptation of the Burger and Cooper's Desirability of Control Scale into Spanish. Two samples are present: the first involving 1,999 people to study their psychometric properties. In the second sample, 111 people were included to estimate test/ retest reliability. Cultural adaptation was performed using the translation & back-translation method. Item analysis, internal consistency and test/re-test reliability were assessed, then evidence of the validity of the internal structure was determined by using exploratory and confirmatory factor analysis. Subject recruitment was performed to gather the 1,999 subjects stratified by age, gender quotas as designed in the sampling plan. Of the subjects, 51% were female, average age of 45 years old (SD = 17.5). All items from the original scale were understood correctly, while five items presented ceiling effect. Cronbach's alpha = .736 and a test-retest correlation r = .713 were obtained. The factor structure indicated the presence of four dimensions: forecast, autonomy, power and influence and reactance which were reassured in the confirmatory analysis (x2/df = 4.805, CFI =.932, TLI =.954, RMSEA = .062). The basic dimensions of the scale have shown to be stable and well-defined, though not perfect. The scope, possible applications of the scale and further research are later proposed and discussed.
  • Publication
    Reporting and Interpreting Effect Sizes in Applied Health- Related Settings: The Case of Spirituality and Substance Abus
    (MDPI, 2022-12-31) Sánchez Iglesias, Iván; Saiz Galdós, Jesús; Molina Fernández, Antonio Jesús; Goldsby, Tamara
    Inferential analysis using null hypothesis significance testing (NHST) allows accepting or rejecting a null hypothesis. Nevertheless, rejecting a null hypothesis and concluding there is a statistical effect does not provide a clue as to its practical relevance or magnitude. This process is key to assessing the effect size (ES) of significant results, be it using context (comparing the magnitude of the effect to similar studies or day-to-day effects) or statistical estimators, which also should be sufficiently interpreted. This is especially true in clinical settings, where decision-making affects patients’ lives. We carried out a systematic review for the years 2015 to 2020 utilizing Scopus, PubMed, and various ProQuest databases, searching for empirical research articles with inferential results linking spirituality to substance abuse outcomes. Out of the 19 studies selected, 11 (57.9%) reported no ES index, and 9 (47.4%) reported no interpretation of the magnitude or relevance of their findings. The results of this review, although limited to the area of substance abuse and spiritual interventions, are a cautionary tale for other research topics. Gauging and interpreting effect sizes contributes to a better understanding of the subject under scrutiny in any discipline.
  • Publication
    What Aspects of Religion and Spirituality Affect the Physical Health of Cancer Patients? A Systematic Review
    (MDPI, 2022-08-02) Almaraz, David; Saiz Galdós, Jesús; Moreno Martín, Florentino; Sánchez Iglesias, Iván; Molina Fernández, Antonio Jesús; Goldsby, Tamara L.
    In recent years, the literature on the relationship between religion and spirituality (R/S) and the health of cancer patients has been flourishing. Although most studies focus on mental health, many study the physical health of these individuals. In order to summarize the findings of these studies, we reviewed the most recent research on this subject using the PubMed and PsycInfo databases. The objective of this systematic review was to recognize the primary R/S variables studied in research on physical health in cancer contexts. We found that spiritual well-being was the most-researched variable in studies of these characteristics, followed by R/S struggles and other variables such as religious coping; religious commitment or practice; or self-rated R/S. In general, R/S seems to have a positive association with the physical health of cancer patients, although the results are quite heterogeneous, and occasionally there are no relationships or the association is negative. Our results may assist in improving interventions that include spirituality in clinical settings as well as the development of holistic approaches, which may have a positive impact on the quality of life and well-being of cancer patients.
  • Publication
    Adaptación y validación de la versión española de la escala de evaluación de dolor en personas con demencia avanzada: PAINAD-Sp
    (2014-01) García Soler, Álvaro; Sánchez Iglesias, Iván; Buiza, Cristina; Alaba, Javier; Navarro, Ana Belén; Arriola, Enrique; Zulaica, Amaia; Vaca, Raúl; Hernández, Carmen
    El dolor está considerado como un grave problema en entorno residencial afectando a un 60% de los residentes. El proceso evolutivo de la enfermedad de Alzheimer puede conllevar dificultades de comunicación y comprensión de las escalas de evaluación de dolor, dificultando la evaluación del dolor y la implementación de estrategias de manejo de éste. El objetivo principal de este estudio fue validar la versión española del PAINAD (PAINAD-Sp) y evaluar su aplicabilidad en un Centro Gerontológico en España. 20 usuarias diagnosticadas de demencia avanzada fueron observadas por 5 observadores con diferentes perfiles profesionales durante 5 minutos en cada condición. La PAINAD-Sp fue administrada simultáneamente a una escala analógica visual en tres condiciones observacionales: sin dolor, durante actividad agradable, y en situación de dolor. Los resultados muestran que el alfa de Cronbach se encontraba entre 0,467 y 0,827 (con una media de 0,692, que subía si el ítem de respiración se eliminaba). La fiabilidad interjueces variaba entre 0,587 y 0,956. La correlación entre la medida total en PAINAD-Sp y en una Escala Visual Analógica fue estadísticamente significativa (p<0,05) en todas las medidas y variaba entre 0,517 y 0,868. Los resultados del estudio muestran que la escala es eficaz para medir el dolor en personas con demencia sin capacidad de comunicación. Esta escala puede ser usada por diferentes profesionales de la salud con poco entrenamiento y buena fiabilidad.
  • Publication
    Cutoff scores for workplace bullying: The Spanish Short-Negative Acts Questionnaire (S-NAQ)
    (2019-07-30) León-Pérez, José M.; Sánchez Iglesias, Iván; Rodríguez Muñoz, Alfredo; Notelaers, Guy
    Background: Workplace bullying is considered a major social stressor at work. However, in the Spanish context, there is a lack of measures that allow researchers and practitioners to distinguish between non-targets and targets of workplace bullying. Method: This study reports the psychometric properties, factor structure, and cutoff scores for the Short-Negative Acts Questionnaire (S-NAQ) in a Spanish sample (N = 1,409). Results: The S-NAQ demonstrated adequate psychometric properties. Moreover, both Exploratory and Confirmatory Factor Analysis revealed that a unifactorial model of workplace bullying fit the data best. Two cutoff points for the S-NAQ were formulated using receiver operating characteristic curves to categorize respondents as “not exposed to workplace bullying” (scores below 15), “at risk of being bullied” (scores between 15 and 22), and “targets of workplace bullying” (scores above 22). Conclusions: These cutoff scores may help researchers and practitioners in diagnosing workplace bullying and designing intervention strategies.
  • Publication
    Use of Causal Language in Studies on the Relationship between Spiritually-Based Treatments and Substance Abuse and Relapse Prevention
    (MDPI, 2021-12-03) Sánchez Iglesias, Iván; González-Castaño, Marta; Molina Fernández, Antonio Jesús
    The main goal of scientific research is to explain what causes a phenomenon. However, only well-controlled studies guarantee sufficient internal validity to support causal explanations (i.e., experimental and some quasi-experimental designs). The use of causal claims in non-experimental studies can mislead readers into assuming a cause–effect relationship when alternative explanations have not been ruled out, undermining the principle of scientific rigor and the credibility of scientific findings. Although spiritual practices form part of some interventions for health and behavioral problems, their effectiveness cannot often be assessed via experimental methodology. This paper assesses the validity of causal inferences in published non-experimental studies, and more specifically in studies on the relationship between spiritually based treatments and substance abuse improvement and relapse prevention. We conducted a systematic review using Scopus, Pubmed, and several databases included in ProQuest, for the period 2015 to 2020. Out of 16 studies selected, six studies (37.5%) used correct language in the title, abstract, and discussion sections; 10 studies (68.8%) used tendentious or incorrect language in at least one section. Spiritually based treatments show promising results in some health improvement outcomes. Most studies show transparency when reporting results. However, researchers should be careful not to make causal assertions unless the internal validity of the research is sound.
  • Publication
    Secondary education students’ self-assessment: the effects of feedback, subject matter, year level, and gender
    (2020-10-30) Panadero, Ernesto; Fernández Ruiz, Javier; Sánchez Iglesias, Iván
    The effects of relevant factors related to self-assessment have not been systematically investigated. We explored four factors and their effects on self-assessment and self-efficacy: (1) feedback (with vs without), (2) subject matter (Spanish vs mathematics), (3) year level (K7 vs K10 vs K11), and (4) gender. The participants included 64 secondary education students who self-assessed during a set of Spanish and mathematics activities while being video-recorded. Data came from think-aloud protocols, direct observations, and self-reported instruments. The use of self-assessment strategies and criteria was more frequent and advanced without feedback and in females. There were differences in the self-assessment of Spanish and mathematics. As for year level, results showed more similarities than expected, though the use of advanced strategies and criteria varied across levels. Additionally, none of the factors had significant effects on self-efficacy. This study opens a new avenue for self-assessment research, unveiling the black box of self-assessment.