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Table 6 Cronbach’s alpha (α) for the 11-item index (excluding experienced well-being) and 11+1-item index (including experienced well-being) of the Pemberton Happiness Index

From: Construction and validation of a measure of integrative well-being in seven languages: The Pemberton Happiness Index

  α (11 items) α (11+1 items) % variance
Germany .93 .93 59.56
India .89 .89 54.56
Japan .92 .93 57.49
Mexico .92 .92 59.38
Russia .89 .90 49,61
Spain .91 .92 56.08
Sweden .92 .92 59.06
Turkey .82 .84 41.13
USA .93 .93 60.95
  1. Note. The table also shows the percentage of variance explained by a unifactorial solution for the 11-item version of the Pemberton Happiness Index.