1 = never
2 = about once a month
3 = about once a week
4 = several times a week
5 = daily

main purpose of Instagram usage
1 = private purposes/entertainment
2 = professional purposes

Instagram profile setting
0 = private
1 = public

to get as many likes as possible
1 = not important at all
5 = very important

median split feedback relevance quantity
0 = low
1 = high

subjective social status
1 = 1
2 = 2
3 = 3
4 = 4
5 = 5
6 = 6
7 = 7
8 = 8
9 = 9
10 = 10

self esteem_1
1 = do not agree at all
5 = agree completely

1 = female
2 = male
3 = other

1 = Ledig, keine Partnerschaft
2 = Ledig, in Partnerschaft
3 = Verheiratet
4 = Geschieden

1 = completed compulsory education
2 = Abitur
3 = completed vocational education
4 = bachelors degree
5 = masters degree
6 = doctoral degree