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Table 6 Item Summary, Internal Consistency Reliability, and Results of Exploratory Factor Analysis for Parent Perception of Condition Severity as Mild (n = 137) and Moderate to Severe (n = 163)

From: Reliability and construct validity of the Participation in Life Activities Scale for children and adolescents with asthma: an instrument evaluation study

    Internal Consistence Reliability Factor Analysis Principal Components
  M SD Item to Total Correlation Scale Alpha & if Item Deleted KMO Sampling Adequacy Rescaled Factor Loading (PC) Rescaled Amount of Variance Explained
Mild PLA 1.974 .772 - .709 .663 - 62.6
   Planning for .538 .354 .481 .674 - .824 -
   Interference with .631 .329 .573 .546 - .824 -
   Prevention from .804 .288 .523 .619 - .720 -
More Severe PLA 1.694 .777 - .758 .672 - 67.5
   Planning for .441 .310 .527 .740 - .762 -
   Interference with .553 .310 .655 .597 - .855 -
   Prevention from .670 .328 .538 .681 - .842 -