Pair Programming

Williams' Research, Concluded

Quality

Table 1 from Laurie Williams, Robert Kessler, Ward Cunningham, and Ron Jeffries, "Strengthening the Case for Pair Programming", IEEE Software, Volume 17, July 2000, pp. 19-25, and http://collaboration.csc.ncsu.edu/laurie/Papers/ieeeSoftware.PDF.

Percentage of Test Cases Passed

	Individuals	Pairs
Program 1	73.4	86.4
Program 2	78.1	88.6
Program 3	70.4	87.1
Program 4	78.1	94.4

The difference in quality levels is statistically significant to p < 0.01;
p is the probability that these results could occur by chance.

Satisfaction

In university study, surveyed the 41 programmers over 6 semesters

over 90% indicated they enjoyed collaborative programming more than working along
almost 95% indicated they had more confidence in their code when working in pairs.

created May 16, 2003
last revised November 7, 2003 previous next