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Table 1 Results of the multiple comparisons applied to RMS values (Dunn Method) The test computes statistic Q, the number of rank sums, and shows whether P < 0.05 or not, for the pair being compared. P is the probability that the null hypothesis may be rejected and so concludes that there are differences between treatments. Diff of ranks is the difference in the rank sum orders being compared. The rank sums are a measure of the difference between two treatments.

From: Texture discrimination and multi-unit recording in the rat vibrissal nerve

 

Pressure level 1

Pressure level 2

Comparison

Diff of Ranks

Q

P < 0.05

Diff of Ranks

Q

P < 0.05

Control vs Wood

1.500

4.743

Yes

1.800

5.692

Yes

Control vs Metal

0.340

1.075

No

1.900

6.008

Yes

Control vs Acrylic

0.960

3.036

Yes

2.300

7.273

Yes

Control vs Sandpaper

2.520

7.969

Yes

3.900

12.333

Yes

Wood vs Metal

1.160

3.668

Yes

0.100

0.316

No

Wood vs Acrylic

2.460

7.779

Yes

0.500

1.581

No

Wood vs Sandpaper

1.020

3.226

Yes

2.100

6.641

Yes

Metal vs Acrylic

1.300

4.111

Yes

0.400

1.265

No

Metal vs Sandpaper

2.180

6.894

Yes

2.000

6.325

Yes

Acrylic vs Sandpaper

3.480

11.005

Yes

1.600

5.060

Yes

 

Pressure level 3

Pressure level 4

Comparison

Diff of Ranks

Q

P < 0.05

Diff of Ranks

Q

P < 0.05

Control vs Wood

2.820

8.918

Yes

2.500

7.906

Yes

Control vs Metal

1.580

4.996

Yes

1.620

5.123

Yes

Control vs Acrylic

1.560

4.933

Yes

0.700

2.214

No

Control vs Sandpaper

3.940

12.459

Yes

3.680

11.637

Yes

Wood vs Metal

1.240

3.921

Yes

0.880

2.783

No

Wood vs Acrylic

1.260

3.984

Yes

1.800

5.692

Yes

Wood vs Sandpaper

1.120

3.542

Yes

1.180

3.731

Yes

Metal vs Acrylic

0.020

0.0632

No

0.920

2.909

Yes

Metal vs Sandpaper

2.360

7.463

Yes

2.060

6.514

Yes

Acrylic vs Sandpaper

2.380

7.526

Yes

2.980

9.424

Yes