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Table 2 Two-way repeated measures analyses of variance to examine Quotient® movement variables for diagnostic groups

From: Differentiating ADHD from oral language difficulties in children: role of movements and effects of stimulant medication

 

OLD (n =12)

OLD/ADHD (n = 19)

    
 

M (SD)

M (SD)

    
 

T1

T2

T1

T2

Statistic

Value

p

η 2

Immobility duration

213.58(116.84)

222.25 (159.82)

115.11 (122.70)

118.32 (110.82)

Group

F(1,29)

5.49

.26

 

Movements

2032.67(1020.75)

2458.25 (2086.34)

4837.84 (2746.45)

4457.68 (2646.04)

Group

F(1,29)

8.54

.01*

.23

Displacement

2.73 (1.58)

3.82 (4.22)

8.70 (6.15)

8.11 (6.61)

Group

F(1,29)

7.76

.01*

.21

Area

66.17 (50.41)

107.67 (153.53)

265.37 (154.55)

266.11 (229.09)

Group

F(1,29)

10.64

.003*

.27

Spatial complexity

1.20 (.10)

1.20 (.13)

1.12 (.14)

1.11 (.14)

Group

F(1,29)

0.10

.09

 

Temporal scaling

.60 (.24)

.59 (.37)

.98 (.42)

.98 (.42)

Group

F(1,29)

8.30

.01*

.22

  1. *Significant p-value alpha level of .01. η2 effect sizes of .01, 06, and .14 represent small, medium, and large effects sizes respectively.
  2. Immobility Duration: Average amount of time, in seconds, spent sitting still (moving less than 1 mm) during a 5 min. period.
  3. Movements: Average number of position changes (movement greater than 1 mm), measured in total meters during a 5 min. period.
  4. Displacement: Total distance traveled (in meters) by the marker during a 5 min. period.
  5. Area: Size and shape, measured in cm2, of the space covered by the marker during a 5 min. period.
  6. Spatial Complexity: Complexity of the movement path. (Values range from one to two). Lower values indicate more linear, back & forth movement; higher values indicate more complex movement.
  7. Temporal Scaling: Frequency of movement (scale from 0 to 1; 0 = no movement and 1 = constant movement).
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BMC Psychiatry

ISSN: 1471-244X

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