Background Critical thinking disposition helps medical students and professionals overcome the effects of personal values and beliefs when exercising clinical judgment. The lack of effective instruments to measure critical thinking disposition in medical students has become an obstacle for training and evaluating students in undergraduate programs in China. The aim of this study was to evaluate the psychometric properties of the CTDA test. Methods A total of 278 students participated in this study and responded to the CTDA test. Cronbach’s α coefficient, internal consistency, test-retest reliability, floor effects and ceiling effects were measured to assess the reliability of the questionnaire. Construct validity of the pre-specified three-domain structure of the CTDA was evaluated by explanatory factor analysis (EFA) and confirmatory factor analysis (CFA). The convergent validity and discriminant validity were also analyzed. Results Cronbach’s alpha coefficient for the entire questionnaire was calculated to be 0.92, all of the domains showed acceptable internal consistency (0.81–0.86), and the test-retest reliability indicated acceptable intra-class correlation coefficients (ICCs) (0.93, p < 0.01). The EFA and the CFA demonstrated that the three-domain model fitted the data adequately. The test showed satisfactory convergent and discriminant validity. Conclusions The CTDA is a reliable and valid questionnaire to evaluate the disposition of medical students towards critical thinking in China and can reasonably be applied in critical thinking programs and medical education research.

Internet addiction disorder (IAD) has been proposed to describe uncontrollable, damaging use of Internet technology leading to some changes in the autonomic nervous system. IAD can be defined as an impulse-control disorder that does not involve an intoxicant. Diagnostic and Statistical Manual of Mental Disorders (DSM-V) does not recognize it as a disease but the new approach of research domain criteria (RDoC) considers re-evaluating DSM because of the change in global prevalence of IAD from 0.3% to 38%. Treatment of IAD is still unsolved due to the lack of concrete evidence, knowledge, and information about the disease. Some therapeutic examples are medications and psychotherapies such as cognitive behavioral therapy (CBT). The CBT approach addresses dysfunctional emotions, maladaptive behaviors and cognitive processes. Modified CBT is used for the treatment of IAD but better results are observed when it is combined with other therapies. This commentary is based on full research papers and some specific case reports recording CBT as the treatment for IAD. PubMed, Scopus, Ovid, ProQuest, ScienceDirect, and SpringerLink are the databases used for this commentary. More exhaustive research is needed in this field as to confirm the etiology of IAD and its intervention with CBT.

Background: Critical thinking disposition helps medical students and professionals overcome the effects of personal values and beliefs when exercising clinical judgment. The lack of effective instruments to measure critical thinking disposition in medical students has become an obstacle for training and evaluating students in undergraduate programs in China. The aim of this study was to evaluate the psychometric properties of the CTDA test.Methods: A total of 278 students participated in this study and responded to the CTDA test. Cronbach’s a coefficient, internal consistency, test-retest reliability, floor effects and ceiling effects were measured to assess the reliability of the questionnaire. Construct validity of the pre-specified three-domain structure of the CTDA was evaluated by explanatory factor analysis (EFA) and confirmatory factor analysis (CFA). The convergent validity and discriminant validity were also analyzed.Results: Cronbach’s alpha coefficient for the entire questionnaire was calculated to be 0.92, all of the domains showed acceptable internal consistency (0.81-0.86), and the test-retest reliability indicated acceptable intra-class correlation coefficients (ICCs) (0.93, p<0.01). The EFA and the CFA demonstrated that the three-domain model fitted the data adequately. The test showed satisfactory convergent and discriminant validity.Conclusions: The CTDA is a reliable and valid questionnaire to evaluate the disposition of medical students towards critical thinking in China and can reasonably be applied in critical thinking programs and medical education research.

Background: Critical thinking disposition helps medical students and professionals overcome the effects of personal values and beliefs when exercising clinical judgment. The lack of effective instruments to measure critical thinking disposition in medical students has become an obstacle for training and evaluating students in undergraduate programs in China. The aim of this study was to evaluate the psychometric properties of the CTDA test.Methods: A total of 278 students participated in this study and responded to the CTDA test. Cronbach’s a coefficient, internal consistency, test-retest reliability, floor effects and ceiling effects were measured to assess the reliability of the questionnaire. Construct validity of the pre-specified three-domain structure of the CTDA was evaluated by explanatory factor analysis (EFA) and confirmatory factor analysis (CFA). The convergent validity and discriminant validity were also analyzed.Results: Cronbach’s alpha coefficient for the entire questionnaire was calculated to be 0.92, all of the domains showed acceptable internal consistency (0.81-0.86), and the test-retest reliability indicated acceptable intra-class correlation coefficients (ICCs) (0.93, p<0.01). The EFA and the CFA demonstrated that the three-domain model fitted the data adequately. The test showed satisfactory convergent and discriminant validity.Conclusions: The CTDA is a reliable and valid questionnaire to evaluate the disposition of medical students towards critical thinking in China and can reasonably be applied in critical thinking programs and medical education research.

Background: Critical thinking helps medical students and professionals overcome the effects of personal values and beliefs when exercising clinical judgment. The lack of effective instruments to measure critical thinking disposition in medical students has become an obstacle for training and evaluating students in undergraduate programs in China. The aim of this study was to evaluate the psychometric properties of the CTDA test.Methods: A total of 278 students participated in this study and responded the CTDA test. Cronbach’s a coefficient, internal consistency, test-retest reliability, floor effects and ceiling effects were measured to assess the reliability of the questionnaire. Construct validity of the pre-specified three-domain structure of the CTDA was evaluated by the confirmatory factor analysis (CFA). The concurrent validity, convergent validity and discriminant validity were also analyzed.Results: Cronbach’s alpha coefficient for the entire questionnaire was 0.923, all of the domains showed excellent internal consistency (0.814-0.861), and the test-retest reliability indicated acceptable intra-class correlation coefficients (ICCs) (0.710-0.795, p<0.01). The CFA demonstrated that the three-domain model fitted the data adequately. All dimensions were significantly correlated with the Self-assessment Scale on Active Learning and Critical Thinking (SSACT) and subscales (p<0.01), and the instrument showed satisfactory convergent and discriminant validity.Conclusions: The CTDA has acceptable psychometric characteristics and is a reliable and valid questionnaire to evaluate medical students’ disposition towards critical thinking in China. The CTDA could be applied in critical thinking programs and medical education research.