Table 2 Number of principal component dimensions identified by the nine dimensional analysis methods for Studies 1, 2a, 2b, and 3.

From: Evidence of the unidimensional structure of mind perception

Number of dimensions identified

Dimensional analysis method

rndLambda

Broken stick

Twice mean

Spectral

Kmeans1

Kmeans3

T-test

T-test2

CPT

Study 1

1 dimension

500

500

500

500

500

500

1

500

500

2 dimensions

0

0

0

0

0

0

326

0

0

3 dimensions

0

0

0

0

0

0

147

0

0

4 dimensions

0

0

0

0

0

0

22

0

0

5 dimensions

0

0

0

0

0

0

2

0

0

6 dimensions

0

0

0

0

0

0

2

0

0

Study 2a

1 dimension

500

500

500

500

500

500

191

500

500

2 dimensions

0

0

0

0

0

0

216

0

0

3 dimensions

0

0

0

0

0

0

93

0

0

Study 2b

1 dimension

500

500

500

342

491

491

498

500

491

2 dimensions

0

0

0

158

9

9

2

0

9

Study 3

1 dimension

500

500

500

500

500

500

464

500

500

2 dimensions

0

0

0

0

0

0

36

0

0

  1. Each column presents the count of the 500 bootstrapped iterations for a given method that indicated a given number of dimensions. Bold numbers represent the majority of the bootstrapped iterations.