2.2. Participants
Ten college students (five boys group and five girls
group) participated in the experimental study on a
voluntary basis. The average age of the participants
was 21.5 yrs with a standard deviation of 1.11 yrs.
Mean stature was 1850 mm with a standard deviation
of 101 mm. This indicated a significant size
difference among the participants. The participants
had no prior experience on the assembly task. They
were given instructions on the assembly workstations
and task and trained for 15 minutes on the task, as
required based on their experimental conditions.
Fifteen minutes training was considered adequate as
the assembly task was not a complex task according
to the learning rate. Environmental condition (light,
temperature, humidity and noise) was comfortable
and kept constant. The participants wore light and
comfortable clothes.