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Table 5 Item characteristics and Cronbach’s αs for the two subscales of the AARC-10 SF and the AARC-50 cognitive functioning subscale

From: International relevance of two measures of awareness of age-related change (AARC)

  With my increasing age, I realize that…
AARC-10 SF domaina   Basic item characteristics Item-total correlation
   Mean SD  
PHYS- … I have less energy 2.8 1.1 .75
COG- …my mental capacity is declining 2.1 .9 .77
INT- …I feel more dependent on the help of others 1.5 .7 .76
SCSE- …I find it harder to motivate myself 1.7 .8 .78
LIFE- …I have to limit my activities 1.9 .9 .74
PHYS+ …I pay more attention to my health 3.1 1.1 .78
COG+ …I have more experience and knowledge to evaluate things and people 3.5 1.0 .71
INT+ …I appreciate relationship and people much more 3.8 1.1 .69
SCSE+ …I have a better sense of what is important for me 3.9 1.0 .67
LIFE+ …I have more freedom to live my days the way I want 3.7 1.2 .76
AARC-50 cognitive functioning   Basic item characteristics Item-total correlation
   Mean SD  
COG1 - …my mental capacity is declining 2.1 .9 .84
COG2 - ...I am slower in my thinking 1.8 .8 .84
COG3 - …I have a harder time concentrating 1.7 .8 .85
COG4 - …learning new things takes more time and effort 2.4 1.0 .87
COG5 - …I am more forgetful 2.2 1.0 .85
COG1 + …I have more experience and knowledge to evaluate things and people 3.5 1.0 .86
COG2 + …I have more foresight 2.7 1.1 .83
COG3 + …I have become wiser 2.6 1.2 .82
COG4 + …I think things through more carefully 2.6 1.1 .82
COG5 + …I gather more information before I make decisions 2.6 1.1 .85
  1. Note: aAARC domain abbreviations: PHY Health and physical functioning, COG Cognitive functioning, INT Interpersonal relations, SCSE Social-cognitive and social-emotional functioning, LIFE Lifestyle and engagement; “+” = Positive domains; “-” = Negative domains