The title "Assess the Impact of Lean Construction Implementation Techniques to Reduce Construction Process Waste and Improve Performance" is generally workable, but it could benefit from a few improvements to make it more concise and impactful. Here's a alternaye version of the title what I would use:

"Assessing the Impact of Lean Construction Techniques on Reducing Waste and Improving Performance"

In this version, the title is more straightforward and focused. It clearly indicates the main objectives of the study, which are to evaluate the impact of Lean Construction techniques on waste reduction and performance improvement within the construction process.

Yes, it is possible to relate Lean construction principles, waste, and project performance. Lean construction is a management philosophy and set of principles aimed at reducing waste and increasing efficiency in construction projects. Waste is any activity or resource that does not add value to the project and can include overproduction, waiting, defects, overprocessing, excess inventory, unnecessary motion, and unused talent.

Project performance is a measure of how well a construction project meets its objectives in terms of time, cost, quality, safety, and customer satisfaction. Lean construction principles can help improve project performance by reducing waste and increasing efficiency.

To relate these three latent variables, one approach is to use a structural equation modeling (SEM) technique. SEM can be used to model the relationships between latent variables and their observed indicators (manifest variables). In this case, Lean construction principles, waste, and project performance would be the latent variables, while their observed indicators could be specific Lean construction practices, types of waste, and project performance metrics.

The SEM model would specify the hypothesized relationships among the three latent variables. For example, the model could hypothesize that Lean construction principles have a direct negative effect on waste, and waste has a direct negative effect on project performance. In addition, the model could hypothesize that Lean construction principles have a direct positive effect on project performance, and that this effect is partially mediated by the reduction of waste.

The SEM model could also include indirect effects and other variables that may influence the relationships between the three latent variables. Once the model is specified, it can be estimated using data collected from construction projects. The estimated model can then be used to test the hypothesized relationships and to identify the most important factors that contribute to project performance.