Instrument Validity and Reliability in the Indonesian Context Factor Analyses

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3.11 Instrument Validity and Reliability in the Indonesian Context

The first instrument, the scale, consisted of five subscales. Two subscales were devised by the researcher based on the theoretical construct that was believed to be fit with what the researcher wanted to measure. The efficacy for English subscale, for example, was developed based on the English-related skills an English teacher needs for both communication and instruction purposes. The other subscale, the efficacy for curriculum implementation, was developed based on the guidelines of the implementation of the curriculum in the English classroom. The other three sub-scales, the efficacy for teaching strategies, efficacy for classroom management, and efficacy for student engagement, were adopted from Tschannen- Moran and Hoy‘s Ohio State teacher efficacy Scales Tschannen-Moran Hoy, 2001. These scales had proven to have high reliability, with 0.91 for the teacher efficacy for instructional strategy, 0.90 for classroom management and 0.87 for student engagement. They were also high when applied in other research for the efficacy among new teachers in Sarawak, Malaysia with an overall reliability of 0.97, 0.94 for instruction, 0.93 for classroom management and 0.93 for students‘ engagement Murshidji, Konting, Elias Fooi, 2006. The reliability of the data was computed using the Cronbach‘s alpha to find the reliability coefficient. Based on the analysis, the reliability coefficients of the 91 data were .97 for the overall efficacy scale, with .91, .92, .93, .91, and 94 respectively for the five efficacy subscales. The reliability coefficients for the engagement scale were also high with an overall Cronbach‘s alpha of .91 and the alphas of .76 for vigor, .83 for dedication and .79 for absorption.

3.12 Factor Analyses

Exploratory factor analyses were carried out on both teachers‘ efficacy and work engagement scales. The factor analyses, however, were not used as the basis of the analyses in the present study. This was due to the extensive validation that had been done to verify both scales. The factor analyses done in the present study, however, served to provide cultural comparison resulting from culturally different groups of sample and the possible potential adaptation in response to different cultural and social background of the participants as well as different nature of teaching profession. More detailed discussion on the result of the factor analyses could be found in the chapter on the presentation of the findings Chapter 4. 92

Chapter 4 Research Findings

4.1 Introduction

This chapter presents the findings of the analyses on the quantitative data. Presentation begins with the results of the descriptive analysis consisting of sample description and distribution, and is followed by the findings of the quantitative results analyzed using the multi-factor Multivariate Analyses of Variance MANOVA. It also reports the findings related to the effects of Competency-based Integrated Training CBIT on the teachers‘ self-efficacy beliefs analyzed using the repeated measures MANOVA. Another section in this chapter reports the findings about the level of work engagement of the participants, and the relation between teachers‘ efficacy and work engagement. The results of factor analyses and the reliability tests are also presented as separate sections in this chapter.

4.2 Results of the descriptive analysis

4.2.1 Sample description and distribution

There were seven independent variables involved in the data. Such variables included gender, age, educational background of whether the participants had English teaching background in their college or university, participants‘ teaching experience, teacher status, schools, and the districts where the teachers