This book presents comprehensive tables detailing the accuracy and assessability of parametric functions within linear models featuring constant levels, based on n*n*n first-order Latin cubes, n*n*n Greek-Latin cubes, and n*n*n*n first-order Latin hypercubes, as well as n*n*n second-order Latin cubes. It calculates the values of the F-test power function for hypotheses regarding the significance of factors across all listed cubic configurations, with results meticulously organized into tables and graphs. The book also includes practical examples demonstrating how to utilize the calculated characteristics of parametric functions for analyzing experimental data using 2x2x2 first and second-order Latin cubes. Additionally, it describes a suite of statistical analysis programs designed for constant-level models on computers.