Educational assessment is used throughout the world for a range of different formative and summative purposes. Wherever an assessment is developed, whether by a teacher creating a quiz for their class, or by a testing company creating a high stakes assessment, it is necessary to decide how long the test should be. Specifically, how many questions…

This study aims to develop and validate the Principal Competency Inventory (PCI), an instrument used to assess a principal's leadership competencies that promote student learning in South Korea. An extensive review of prior work was conducted to understand the theoretical foundation related to school leadership and the competency construct of the…

Computational thinking (CT) in young children has recently gained attention. This study verified the applicability of the Korean version of the Bebras cards and TACTIC-KIBO in measuring CT among young children in South Korea. A total of 450 children responded to the Bebras cards, TACTIC-KIBO, and Early Numeracy tasks that were used for the…

This study aimed to introduce an ego-resiliency questionnaire for preadolescents (the ER-P) by restructuring the ER89 using the data of 1398 preadolescents from the Panel Study on Korean Children. The ER-P was proposed as a 10-item second-order instrument with two factors (Optimal Regulation and Openness to Life Experiences). The ER-P achieved…

Concerns have recently been raised about the validity of scales used in the L2 motivational self system tradition, particularly in relation to sufficient discriminant validity among some of its scales. These concerns highlight the need to systematically examine the validity of scales used in this tradition. In this study, we therefore compiled a…

In this study, we explored psychometric network analysis (PNA) as an alternative method for identifying item wording effects in self-report instruments. We examined the functioning of negatively worded items in the network structures of two math-related scales from the 2019 Trends in International Mathematics and Science Study (TIMSS); Students…

The Multidimensional Scale of Perceived Social Support (MSPSS) is an easy and brief instrument developed to assess individuals' perceptions of social support from three different sources (family, friend, and significant other). The MSPSS have been adapted to culturally diverse backgrounds, different age groups, and both clinical and nonclinical…

Using a large sample of students (N=1373; 40% girls; Mage =14 years) from 54 classrooms in South Korea, this study identified subtypes of bullies based on specific combinations of self-reports and peer-reports and examined the intrapersonal and interpersonal factors that explain the differences in characteristics between these identified groups.…

In this study, different factor analysis models were employed to test the Self-Compassion Scale (SCS) in 11 distinct populations (n = 15,266) in different countries. The results strongly suggest that the most appropriate use of the SCS is to measure levels of Self-Compassionate responding (positive items) and Self-Uncompassionate responding…

The purpose of the current study is to validate the Counseling Competencies Scale Revised (CCS-R). We used convenience sampling to recruit counselors and counselors-in-training (N = 156). Specifically, we had 130 female (83.3%) and 26 male (16.7%) participants, and the mean age was 33.16 (SD = 11.18), ranging from 20 to 62 years old. We used…

The authors translated the California Brief Multicultural Competence Scale (CBMCS; Gamst et al., 2004), a measure of multicultural competence, into Korean for cross-cultural validation. An exploratory factor analysis followed by a confirmatory factor analysis on a sample of Korean counselors (N = 365) supported a 3-factor model: Multicultural…

In combat sports, competition preparation is crucial, but research on this topic has been limited due to a lack of measurement tools. This study aimed to develop and validate the Multidimensional Assessment of Preparation for Sport Competition (MAPSC). In the first step, 61 athletes and 39 coaches collaborated to conceptualize and develop…

The 12-item General Health Questionnaire (GHQ-12) is designed to detect a diagnosable psychiatric disorder and has demonstrated positive psychometric properties in adult populations. Despite these findings, the psychometric properties of the GHQ-12 have hardly been examined with regard to early childhood teachers. This study purposed to examine…

The Measure of Acceptance of the Theory of Evolution (MATE) has been extensively used in science education research for more than two decades. This study examines the fairness of MATE items based on religious convictions and academic majors. The multidimensional item response theory and differential item functioning analyses were run on data…

Although it has been suggested that social network site (SNS) use motives are one of important determinants of SNS addiction, there has not been yet a scale to assess them. The aim of this study was to examine psychological properties of a newly developed Social Network Site Use Motives Scale (SUMS) in a college student sample. The SUMS was…