Abstract:
This study was emphasized to investigate the ‘’effect of Organizational Change Management on or
ganizational Performance’’ at Ambo district some selected public sectors. To advance the conceptual 
knowledge of understanding of employees of five selected public sectors, that are: Civil Service, Edu
cational Office, Revenue and customs authority office, District land management office, and Health 
office towards the various dimensions of organizational change management and its effect on or
ganizational performance for the parameter of employee productivity. The researcher defined the 
conceptual frame work with in dependent variables (strategic change, cultural change, and techno
logical changes) and the independent variable (organizational performance). Also the models of or
ganizational change (Kurt Lewin’s Theory of Change Model, Kotter’s Eight Stage Model and McKin
sey 7S Change Model) are considered. Among the above three models the researcher choice Kurt 
Lewin’s Theory of Change model. Because it is one of the cornerstone models for understanding or
ganizational change for relevant in the present scenario. The researcher applied descriptive re
search with quantitative approach and explanatory research design. The researcher used simple 
sampling technique to select five (5) sectors from twenty-nine (29) public sectors in Ambo district 
and employees of the sectors are selected based on probability simple random sampling technique. 
The Total population size (3, 36) and sample size (183). Primary data was collected through struc
tured questionnaires including close ended questions and Employees of district sectors could be 
taken to serve as the main source of primary data and Secondary data would be collected from other 
already existing sources and previous research.  To asses, examine, identify, evaluate and finally, 
analyze the collected data from the distributed questionnaires of respondents the researcher used 
SPSS version 20. The researcher applied inferential statistic such as correlation analysis and multi
ple regressions to predict the relationship between three dimensions of organizational change man
agement and organizational performance. Accordingly the Pearson correlation matrix conducted 
between organizational change management dimensions and organizational performance revealed 
that all independent variables have significantly a positive relationship with dependent variable or
ganizational performance, A multiple regression analysis conducted to evaluate how well the three 
dimensions predicted and depicted the linear combination of the three dimensions are significantly 
related to organizational performance (R2 =0.4, F=28.062 and P<0.001). The ANOVA results of the 
predicting dependent variable (organizational performance) and the independent variables of or
ganizational change management dimensions are statistically significant (different from zero). The 
Beta coefficient result, the researcher obtained that, strategic change is found to be the most im
portant in predicting the dependent variable organizational performance when compared with the 
others. Secondly, culture al change. Thirdly, Technological change. Hence, these three dimensions in 
beta coefficient more or less statistically significant when at p-value greater than Alpha, (0.87>0.05). 
The researcher finalizes that, in the case of five selected public sectors of Ambo district, organiza
tional change management have its own contribute to achieve organizational performance