 |
| |||
| opdelt test (A method of marketing testing by which a baseline control sample is compared to a variety of single-variable test samples to improve response rates) | |||
|
split testing : 1 phrase in 1 subject |
| Marketing | 1 |
|
| |||
| opdelt test (A method of marketing testing by which a baseline control sample is compared to a variety of single-variable test samples to improve response rates) | |||
|
split testing : 1 phrase in 1 subject |
| Marketing | 1 |