Table 4. Characteristics of the tested samples.
Characteristics Quality crit.
lifestyle IA R V
sample N sex age BMI physical health* psychological health* Q ET
m f M (SD) Range M (SD) Range M (SD) Range M (SD) Range
A: normal population 55 33 22 34.6 (11.7) 18-56 23.7 (3.4) 18.1-33.7 1.55(.50) 1-2 1.44(.57) 1-3 X X X X
B: exercise science stud. 26 19 7 22.5 (2.4) 19-28 18.9 (2.8) 18.9-30.1 1.50 (.51) 1-2 1.54 (.58) 1-3 X X X
C: exercise science stud.(1st semester) 60 40 20 20.9 (3.6) 18-38 22 (1.9) 18.4-28.4 1.26(.44) 1-2 1.21 (.46) 1-3 X X
N: sample size; m: male, f: female; M: mean; SD: standard deviation; BMI: body mass index; IA: item analysis; R: retest-reliability; V: validity; Q: questionnaire; ET: exercise tests; X: analysed
* assessed by rating scale (1…very good; 4… bad).