The purpose of this study was to investigate the mediating effect of assessment techniques on the relationship between work-based learning and teamwork skills development at technical colleges in Nigeria. The sample consists of 257 technical teachers. The CFA models were developed to obtain the Chi-square values, modification indices, and standardized estimates using AMOS. Structural Equation Modeling (SEM), employing AMOS version 22 was utilized to test the mediation effect and also the relationship between work-based learning and teamwork skills development among students of technical colleges. The findings of the study revealed that work-based learning has a direct significant negative relationship with teamwork skills development among students of technical colleges, while, it has a direct insignificant positive relationship with assessment techniques. However, when the mediation hypothesis was tested, the result indicates that assessment techniques have a significant positive indirect impact on teamwork skills development, that is, it fully mediates the relationship between work-based learning and teamwork skills development among students of technical colleges. This study implies to educators that there is a need to appropriately enforce the assessment techniques for effective development of teamwork skills among TVET students. It is therefore, confirmed that teamwork skills should be enhanced when work-based learning is used in collaboration with appropriate assessment techniques. © 2013 IEEE.
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