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Table 2 Analysis of item discriminate validity and internal item consistency of the construct

From: The interplay between academic performance and quality of life among preclinical students

Domain items Physical health Psychological health Social relations Environment
Physical health
 Energy .754a .552 .396 .526
 Mobility .590a .498 .418 .448
 Sleep and rest .725a .433 .357 .432
 Activities of daily living .860a .608 .419 .525
 Work capacity .826a .598 .474 .497
Psychological health
 Spirituality .521 .650a .415 .505
 Self-esteem .411 .704a .401 .331
 Thinking, learning, memory and concentration .544 .613a .273 .339
 Personal beliefs .302 .570a .208 .234
 Bodily image and appearance .458 .653a .415 .430
 Positive feelings .606 .774a .585 .497
 Negative feeling .463 .658a .397 .364
Social relations
 Personal relationships .517 .591 .882a .558
 Social acceptance .456 .502 .819a .514
 Social support .423 .405 .857a .591
Environment
 Physical safety .410 .479 .464 .617a
 Physical environment .386 .328 .243 .553a
 Financial resources .387 .417 .494 .689a
 Opportunities for acquiring new information .384 .352 .392 .614a
 Leisure activities .457 .376 .277 .531a
 Home environment .445 .363 .524 .731a
 Accessibility of health care .438 .358 .516 .757a
  1. aBoth IDV (higher correlation with its respective domain) and IIC (correlation of more than 0.4) are achieved