Timeout
A timeout can be set to limit the time the subject
has for giving the answers for a test item. Without a timeout the
subject can have as much time as he needs to decide the answers. With
a timeout, the test goes to the next item when the time ends.
In addition a timeout warning can be set to alert the
subject that the time is about to end: the warning indicator changes
from green to yellow.
When a timeout occurs and the subject hasn't signalled that he is
'done', the indicator changes to red for a second and then goes to the
next item. The results will show that a timeout occured for this item
for this subject.
The timeout can be used with both free and
fixed sequences. The behaviour of time limits differ slightly in
fixes and free sequences, see notes.
Setting timeouts
By default the timeout time limit and timeout warning are not used
(the timeout times are zero). The timeouts are enabled by setting the
itemTimeout and itemWarningTimeout
parameters in the test config file. Here is an example:
# item timeout in seconds
itemTimeout=10.0
# warning time before timeout
itemWarningTimeout=4.0
In this example the subject has 10 seconds to give answers for this
item. When 4 seconds are left (6 seconds after the start of giving
answers), the indicator changes from green to yellow to show that time
is about to end. The itemWarningTimeout parameter
may be left out (equivalent to setting it to zero) and then the
indicator goes directly from green to red when time ends.
Notes
Some notes about using timeouts:
- With a fixed
sequence the time starts when the whole fixed
sequence has been played to the subject and answering is
enabled.
- With a free
sequence the time starts when the item starts. The
time limit should be long enough that the subject has enough
time to compare samples and switching between them multiple
times. The time limit includes the time used to play samples
and giving the answers.
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Last modified: Thu Apr 16 10:40:56 EET DST 1998