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. 2011 Oct 26;11:80. doi: 10.1186/1471-2393-11-80

Table 4.

Correlation matrix.

TPDS TPDS PI TPDS NA EPDS GAD7
TPDS 1.00 .60** .87** .56** .56**
TPDS PI - 1.00 .12 .32** .27**
TPDS NA - - 1.00 .49** .52**
EPDS - - - 1.00 .75**
GAD7 - - - - 1.00

Construct validity of the TPDS, its sub-scales in relation to the EPDS and GAD-7

**Correlation is significant at the 0.01 level (2-tailed)/* Correlation is significant at the 0.05 level (2-tailed)