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    Measurement Equivalence of the Turkish Version of the Satisfaction with Life Scale across Age
    (Assoc Measurement & Evaluation Education & Psychology, 2022) Erdem, Devrim
    The Satisfaction with Life Scale is a widely used measurement tool. In this study, it was aimed to examine the measurement invariance of the Turkish version of the life satisfaction scale across ages. Of the 483 people participating in the study, 198 were men and 285 were women. Participants were divided into two age ranges, 18-24 and 25-43. A first-order single factor solution was provided for both the entire group and all age groups. The findings showed that the configural invariance was achieved by age groups. However, metric invariance could not be provided for age groups. The absence of equivalent factor loadings between the ages of 18-24 and 25-43 means that the latent structure measured by life satisfaction according to age groups does not have the same meaning. Partial metric invariance was obtained when the constraint of the 4th item parameter was freely estimated in further analysis. Subsequent analysis showed that scalar invariance was supported. On the other hand, full strict invariance could not be obtained, but only partially when the parameter constraint of item 1 was released. In summary, the results of this study revealed that comparison of age groups is possible with invariant items. It is hoped that this research will help us to clarify and deepen our inferences about life satisfaction and lifespan.
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    Multicultural Competence Scale for Prospective Teachers: Development, Validation and Measurement Invariance
    (Ani Yayincilik, 2020) Erdem, Devrim
    Purpose: This study reports on the development, validation and measurement invariance of the Multicultural Competency Scale (MCS) for preservice teachers. Research Methods: Data from 640 pre-service teachers were collected for two studies. After data screening procedures 628 responses were left. The data were divided into two sets for exploratory factor (n(1)=314) and confirmatory factor analysis (n(2)=314) using a random split half method in SPSS. Findings: According to the results of the exploratory factor analysis, a 14-item, three-factor solution came out: awareness, skill and knowledge. Awareness subscale aims to measure the teacher's awareness of his or her own cultural affiliation. Knowledge subscale attempts to measure the teacher's willingness to learn about diverse cultures. Skill subscale intends to measures the teacher's competence to organize and adapt the educational environment and materials according to the multicultural class. Confirmatory factor analysis indicated that the three-factor oblique model was a good fit to the data. The subscales of the MCS demonstrated adequate internal consistency. Measurement invariance tests revealed that full configural, metric, scalar invariance and partial strict invariance were achieved across gender. Implications for Research and Practice: Validity and reliability analysis of the scale suggest that the MCS-14 has satisfactory psychometric features. Thus, the MCS can be utilized to diagnose pre-service teachers' multicultural competency and to investigate changes in their strengths and weaknesses in multicultural competency during the training. The MCS enables preservice teachers to self-assess and to recognize their position of multicultural competence. The MCS also allows researchers to predict teachers' future success in diverse classrooms. (C) 2020 Ani Publishing Ltd. All rights reserved
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    Revisiting Quick Big Five Personality Test: Testing Measurement Invariance across Gender
    (Assoc Measurement & Evaluation Education & Psychology, 2020) Erdem, Devrim
    Personality is a subject that has been studied because of the social, economic, individual, and educational implications of personality. The widely used model for measuring personality is the Five-Factor Model (FFM). The robustness of the factor structure of the FFM of personality has been provided among cultures and diverse samples. The measurement tools are used to identify differences between individuals or groups. However, in order to make meaningful comparisons, it is necessary to provide the measurement equivalence among the comparison groups. Thus the current study aimed to test the measurement invariance of the Quick Big Five (QBF) items that are used in many disciplines in Turkey. For this purpose, the QBF items were investigated in terms of configural, metric, scalar and strict invariance across gender. In this research, 1114 university students aged between 17-32 years were included in the sample. Firstly, several CFAs were performed for the whole sample and then both men and women separately. The findings of the CFA revealed that the QBF model fit the data. In addition, each of the 30 items of the scale was embedded into a related latent factor in both gender groups. Secondly, sequential multiple group CFA tests to examine measurement invariance were conducted. According to the findings, full configural, partial metric and scalar invariance were fulfilled across gender. However, strict invariance could not be achieved. Imaginative and inquisitive under the openness factor were determined to cause measurement non-invariance. In conclusion, latent mean comparisons can be made by excluding these two items across gender.
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    The Young Adults Form of the Attitude toward Women's Working Scale: Development, Preliminary Validation and Measurement Invariance
    (Ijate-Int Journal Assessment Tools Education, 2020) Erdem, Devrim
    The purpose of this study was to develop a scale measuring attitudes toward women's working. In line with this main purpose, two studies were conducted to develop the tool and investigate its psychometric properties in two different samples. The study 1 started with generating item pool, conducting exploratory factor analysis to identify underlying factor structure of the latent variable. In study 1 after testing the structure of measure, a brief 9-item, tri-factor scale for the assessment of attitudes toward women's working was emerged. The study 2 utilized a different sample. In study 2, it was aimed to examine model fit, test measurement invariance acroos gender and investigate reliability. Validity and reliability of the scale indicated that the attitude toward women's working scale (ATWWS) had satisfactory psychometric properties. In study 2, configural and metric invariances of the ATWWS were supported for females and males.