| n | Mean score | Standard Deviation |
Worthless (1) - Valuable (7) | |||
Brand name recording | 199 | 5.9 | 1.6 |
Batch number recording | 199 | 6.1 | 1.6 |
Easy (1) - Difficult (7) | |||
Brand name recording | 199 | 3.8 | 2.0 |
Batch number recording | 199 | 5.2 | 1.6 |