The last mockup was the frictional slab, a simple cardboard square covered with a ribbed rubber map. The
slab was places on her back while the shirt was crumpled at the top and she was asked to rup against it to
pull it down. Figure 43 shows Elsa using the frictional slab.
Figure 43: Elsa using the frictional slab
RESULTS:
Tables 4, 5, 6 and 7 summarize the user testing results using a numerical scale from 1-10 where 1 is the
hardest to use and 10 is the easiest.
H-board Task
Getting hands through shirt on her own
Pushing shirt up to elbow with board
Putting head through hole
Ease
8
10
5
Getting sleeves over the shoulder
2
Comments
Took 20 seconds to get halfway up her arm
Took 5 seconds to go 4/5 of the way up her arm
Took 30 seconds and external assistance to hold open
the neck hole
Was not able to do it without assistance
Table 4: H-board user testing results
Ladder Task
Ease
Comments
Getting arms up to first rung
10
Took 2 seconds
Getting arms to upper rungs
9
Was able to reach all 4 bars. The spacing for all bars was
manageable. Once one of her hands slipped off the top
rung, yet she was able to immediately swing the arm
back up to the top
Table 5: Ladder user testing results
Dressing Bars Task
Ease
Comments
Getting shirt on body with bars angled
upward
4
Getting shirt on body with bars angled
downward
8
She was able to get the sleeves up her shoulders but
completely unable to get her head through the hole.
Time was 45 seconds.
She was able to get sleeves up her shoulders but needed
some assistance getting the shirt over her head. Time
was 40 seconds.
Table 6: Dressing bars user testing results
41