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Table 6 Mean differences in tree-level transition point estimates among each of the three pairs of models

From: Determining the transition from juvenile to mature wood microfibril angle in lodgepole pine: a comparison of six different two-segment models

Model pair

Site

Number

Mean

SD

t value

p value

LIN_C and LIN_LIN

CR

57

0.5

1.4

2.77

0.0075

PA

19

0.3

1.4

1.02

0.3193

TN

7

1.4

3.1

1.23

0.2636

TF

17

0.9

1.2

2.84

0.0119

MK

27

0.5

1.9

1.47

0.1547

MC

59

0.8

1.8

3.40

0.0012

All

186

0.7

1.7

5.33

<0.0001

EXP_C and EXP_LIN

CR

57

0.5

1.8

2.20

0.0319

PA

19

0.3

1.7

0.83

0.4172

TN

6

0.3

1.8

0.43

0.6848

TF

16

0.6

1.8

1.37

0.1910

MK

27

0.6

2.4

1.40

0.1727

MC

56

1.2

2.4

3.53

0.0008

All

181

0.7

2.1

4.60

<0.0001

Q_C and Q_LIN

CR

57

0.4

2.3

1.37

0.1754

PA

19

0.3

1.9

0.78

0.4457

TN

6

0.4

2.2

0.41

0.7001

TF

16

0.7

1.7

1.67

0.1152

MK

27

0.7

3.1

1.15

0.2621

MC

57

0.8

2.9

2.13

0.0375

All

182

0.6

2.5

3.20

0.0016

  1. Results of t tests are presented for individual sites and for all data pooled