We conducted a family of experiments [at Lucent Technologies] to understand how various factors affect inspection costs and benefits … [ref] … Surprisingly, none of the independent variables [such as team size] had a significant effect on effectiveness. Consequently, we suspect that … significantly increase effectiveness. … [p. 100] [In another experiment,] We found that 50 percent of … it; the process structure explained only 3 percent. … For interval data [on the length of the review process], we found that the … structure explained only 3 percent.
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