Table 2. Descriptive statistics for the main study variables.
Variable
Between-person variability
Within-person variability
ICC
N
M
SD
Range
n
mV
SD
Range
Affective Attitude [1-7]
.76
40
5.26
1.03
2.50-6.92
117
3
0.44
0.00-1.28
Intrinsic Motivation [1-6]
.76
40
3.96
0.97
1.67-5.67
117
3
0.42
0.19-1.50
Affective Valence [-5-+5]
.50
40
1.95
1.47
-1.58-3.92
111
9
1.00
0.00-3.54
Exercise Enjoyment [0-100]
.44
40
52.18
18.78
11.67-83.50
111
9
14.06
1.41-38.21
ICC = intraclass correlation coefficient, N = number of participants, n = number of data points (measured at baseline, follow-up I, and follow-up II), mV = missing values due to COVID-19 restrictions.