In addition, Wharton University's Leonard Lodish conducted an even more extensive review of test market results and also failed to find a relationship between recall and sales (Lodish pp. 125–139).
此外，禾頓商學院的 Leonard Lodish 進行更深入的分析，沒有找出任何回憶與銷量之間的關係（Lodish 125–139頁）。