Factors Predicting Physical Activity and Sports Participation in Adolescence
Table 1
Continuous and categorical outcome variables and predictors used in the analysis with Cronbach’s alpha, mean value, standard deviation, and maximum variability. The items for these constructs are shown in the appendix.
Continuous variables: outcome and predictors
Response options (Likert scale)
Valid response (%)
Cronbach’s alpha for the mean score
Mean (SD)
Range
Physical activity at T1
7 (1–7)
1183
0.70
4.34 (1.5)
0–7
Attitude towards physical education T0
5 (1–5)
1219
0.89
3.75 (0.85)
1–5
Parent support T0
5 (1–5)
1200
0.84
4.57 (0.57)
1–5
Peer support T0
5 (1–5)
1203
0.77
4.15 (0.62)
1–5
Duration of active transportation to school
1200 (97.9)
Passive transport
509 (51)
Active up to five minutes
179 (18)
Active six to fifteen minutes
256 (25)
Active sixteen to thirty minutes
57 (6)
Active thirty-one to sixty minutes
5 (0.5)
Socioeconomic status
1181 (96.4)
3.85 (0.66)
Categorical outcome and predictors
N (%)
Persistent and started doing sports during two years
710 (58)
Abstaining or quitting sports during two years
515 (42)
Nonsports activities at T0
No other activities
579 (47)
One nonsports activity
420 (34)
Two nonsports activities
162 (13)
Three or more nonsports activities
64 (5.2)
Self-rated health, poor
117 (9.6)
Self-rated health, good
677 (55.3)
Self-rated health, best
412 (33.6)
Body dissatisfaction, too thick
314 (25.6)
Body dissatisfaction, too thin
137 (11.2)
Body dissatisfaction, normal/do not think about it
734 (59.9)
The answers ranged from one (low family finances) to five (very good family finances).
