How is DSf (digit span forward) score obtained?

The digit span forward score (DSf) is obtained by summing the forward item scores. This part of the assessment evaluates the individual's ability to repeat a sequence of digits in the same order as presented. During the test, the individual tries to remember and recall increasingly longer sequences of digits. Each sequence successfully recalled correctly adds to the forward item score, reflecting the person's auditory memory and attention span.

Choosing to sum the forward item scores captures the essence of what the DSf score represents: a direct measurement of the participant’s ability to retain and sequentially process auditory information, which is crucial for cognitive functioning. This method allows the assessment to quantify the individual’s short-term memory capacity in a structured way, providing insights into their cognitive ability.