Purpose

The main purpose of the [TSS-5] scale is to assess the level of job satisfaction among teachers at all educational levels. The scale was selected for measuring job satisfaction for two main reasons:
First, because it allows the assessment of job satisfaction as a unified construct comprising cognitive, emotional, and behavioral aspects of work (Ho & Au, 2006);
Second, because it has been shown to effectively measure overall employee satisfaction with sufficient psychometric validity (Kafetsios & Zampetakis, 2008).

Scale Analysis

The [TSS-5] scale measures teachers’ job satisfaction using five questions.
It is based on the Life Satisfaction Questionnaire (LSQ), with the wording of the items adapted to focus specifically on the work environment.
In the first question, respondents are asked whether their job as teachers is close to their ideal.
In the last question, they are asked whether they would choose to become teachers again.
Responses are given on a 5-point Likert scale, from 1 (Strongly disagree) to 5 (Strongly agree).

Scoring and Statistical Analysis

Scoring is performed using a 5-point Likert scale that reflects various aspects and characteristics of work.
The average job satisfaction score typically ranges between 50–60 on a 1–100 scale.
Scores between 30–50 indicate relatively low satisfaction,
Scores from 0–30 reflect very low satisfaction,
Scores from 60–80 show fairly high satisfaction,
Scores between 80–100 indicate very high satisfaction, suggesting those individuals are the most satisfied.

Reliability and Validity

The [TSS-5] scale is considered a reliable tool for assessing teacher satisfaction.
Regarding score reliability, the Cronbach’s alpha coefficient was found to be α = 0.82, indicating high internal consistency.

References

Greek Literature
Matsagouras, H., & Makri-Botsari, E. (2003). Teacher job satisfaction and self-esteem: conceptual definition, significance and predictive factors. Kinito, 5, 157–172.
International Literature
Bhatnagar, K., Srivastava, K., Singh, A., & Jadav, S. L. (2011). A preliminary study to measure and develop a job satisfaction scale for medical teachers. Industrial Psychiatry Journal, 20(2), 91.
Ho, L. C., & Au, W.-T. (2006). Teaching Satisfaction Scale: Measuring Job Satisfaction of Teachers. Educational and Psychological Measurement, 6, 172–185.
Koustelios, A. (2001). Personal characteristics and job satisfaction of Greek teachers. International Journal of Educational Management, 15(7), 354–358.
Olsen, A., & Huang, F. (2019). Teacher job satisfaction by principal support and teacher cooperation: Results from the Schools and Staffing Survey. Education Policy Analysis Archives, 27, 11–11.