We examined dimensionality and temporal stability of the Interpersonal Stress Scale-Counselor (ISS-C) scores in a sample of professional counselors (n = 518). Confirmatory factor analyses provided support for a four-factor model previously identified through exploratory factor analysis and a bifactor model. Using a randomized test-retest, temporal…

This note is concerned with the benefits that can result from the use of the maximal reliability and optimal linear combination concepts in educational and psychological research. Within the widely used framework of unidimensional multi-component measuring instruments, it is demonstrated that the linear combination of their components that…

Objective: The aim of the present study was to test the factorial invariance and convergent validity evidence of scores on the Somatic Symptom Scale (SSS)-8 with a national sample of adults living in the United States. Method: A data collection contracting service was hired to recruit a national, non-clinical sample (N = 821) of adults in the…

Scale validation is vital to psychological research because it ensures that scores from measurement scales represent the intended construct. Factor analysis fit indices are commonly used to provide quantitative evidence that a proposed factor structure is plausible. However, there is mismatch between guidelines for evaluating fit of factor models…

Researchers often study dynamic processes of latent variables in everyday life, such as the interplay of positive and negative affect over time. An intuitive approach is to first estimate the measurement model of the latent variables, then compute factor scores, and finally use these factor scores as observed scores in vector autoregressive…

In the context of Bayesian factor analysis, it is possible to compute plausible values, which might be used as covariates or predictors or to provide individual scores for the Bayesian latent variables. Previous simulation studies ascertained the validity of mean plausible values by the mean squared difference of the mean plausible values and the…

This research aimed to investigate psychometric properties of the Existential Gratitude Scale (EGS) in India. Study 1 examined the factorial validity of EGS using exploratory and confirmatory factor analysis, which suggested a two-factor structure. Study 2 examined reliability and validity of the scale derived after CFA (referred to as Indian…

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…

The Academic Resilience Scale (ARS) was developed to measure resilience factors in educational contexts. However, there is no clarity on whether the scale could be used as a measure of unidimensional academic resilience scores or just to obtain multidimensional academic resilience factors. How a scale is scored can affect the validity of…

The widely utilized Global Positioning System (GPS) plays a crucial role in everyday navigation. The literature has predominantly focused on GPS use for reaching destinations rather than exploring its various strategic applications and relations with individual factors. The current paper is intended to develop a GPS Uses Scale assessing a variety…

Many psychometric measures yield data that are compatible with (a) an essentially unidimensional factor analysis solution and (b) a correlated-factor solution. Deciding which of these structures is the most appropriate and useful is of considerable importance, and various procedures have been proposed to help in this decision. The only fully…

We examine whether one of the most popular observation systems in teacher evaluation--the Framework for Teaching (FFT)--captures the range of instructional skills teachers need to be effective. We focus on the case of special educators, who are likely to use instructional approaches that, although supported by research, are de-emphasized in common…

The Big Three Perfectionism Scale (BTPS) was created to integrate different aspects of perfectionism, including the newly conceptualized concept of narcissistic perfectionism. The goal of our two studies (N = 1341) was to examine the psychometric properties of the Polish adaptation of the BTPS, supporting the validity and portability of the…

Purpose: This study explores the psychometric properties of the Persian version of the Child and Youth Resilience Measure--Revised (CYRM-R) in adolescent population. Method: A sample of 323 Iranian adolescents (12-18 years old) completed the CYRM-R, Resilient Scale (RS), Beck Depression Inventory (BDI-II), and Mental Health Continuum Short Form…

This study reports quantitative evaluation of changes in students' study approaches during the first semester of organic chemistry. Students were surveyed by a modified M-ASSIST (OCH-adjusted M-ASSIST) instrument adjusted to the specific student population. The validity of the data-model fit was assessed by confirmatory factor analysis. Students…