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. 2020 Jun 17;7:2055668320926046. doi: 10.1177/2055668320926046

Table 3.

Comparison of children’s power mobility skill across devices for total sample and sub-groups.

ALP phase across devices for total sample n = 74
Device used ALP 1 ALP 2 ALP 3 ALP 4 ALP 5 ALP 6 Mean ALP (median) Missing trials
Wizzybug 19 23 16 5 5 1 2.38 (2) Wizzybug 5
Bugzi 19 26 14 6 4 0 2.27 (2) Bugzi 5
Tiger Cub 21 19 17 4 5 3 2.45 (2) Tiger cub 5
Car 18 20 17 5 0 0 2.15 (2) Car 14

Total/267 trials

77 (29%)

88 (33%)

64 (24%)

20 (7.5%)

14 (5%)

4 (1.5%)

2.34 (2)

29/296 (10%)
ALP phase subgroup analyses
1. ALP Stable group: ALP phase did not change more than one phase across devices, n = 63

Device used

ALP 1

ALP 2

ALP 3

ALP 4

ALP 5

ALP 6

Mean ALP (median)
Wizzybug, n = 59 18 22 14 3 2 0 2.00 (2)
Bugzi, n = 58 17 24 12 4 1 0 1.94 (2)
Tiger cub, n = 58 20 18 15 3 2 0 1.95 (2)
Car, n = 49 18 17 10 4 0 0 1.56 (1)

Total/224 trials (%)

73 (32.59)

81 (36.16)

51(22.77)

14 (6.25)

5 (2.23)

0

2. ALP Change group – children whose ALP phase changed by more than one ALP phase across devices, n = 11

Device used

ALP 1

ALP 2

ALP 3

ALP 4

ALP 5

ALP 6

Mean ALP (median)
Wizzybug, n = 10 1 1 2 2 3 1 3.45 (4)
Bugzi, n = 11 2 2 2 2 2 0 3.18 (3)
Tiger cub, n = 11 1 1 2 1 3 3 4.18 (5)
Car, n = 11 0 3 7 1 0 0 2.82 (3)

Total/43 trials (%)

4 (9.30)

7 (16.28)

13(30.23)

6 (13.95)

8 (18.60)

4 (9.30)

ALP 4–6 group – children who achieved ALP phase 4 or higher in at least one device, n = 14 (includes children from both stable and change groups above)

Device used

ALP 1

ALP 2

ALP 3

ALP 4

ALP 5

ALP 6

Mean ALP (median)
Wizzybug, n = 13 0 0 2 5 5 1 4.07 (4)
Bugzi, n = 14 0 1 3 6 4 0 3.93 (4)
Tiger cub, n = 14 0 0 2 4 5 3 4.64 (5)
Car, n = 14 0 1 8 5 0 0 3.29 (3)
Total/55 (%) 0 2 (3.64) 15 (27.27) 20 (36.36) 14 (25.45) 4 (7.27)

ALP: Assessment of Learning Powered mobility use.