This type of testing excludes external factors. This is why it is essential. for example you change your homepage....... This change just so happens to occur at the same time as a dip in the economy..... Web results look like the homepage change had had an adverse effect!
she is nice...
AmnesiaGm1 5 months ago
This type of testing excludes external factors. This is why it is essential. for example you change your homepage....... This change just so happens to occur at the same time as a dip in the economy..... Web results look like the homepage change had had an adverse effect!
ollypboy 1 year ago
very good explicado
povedilla3 2 years ago
Comment removed
simonbcn35 2 years ago