Figure 1
Clustering variables_
| Q1. Rate the degree of impact that the following issue related to the external packaging has on your cosmetics purchasing decision – Packaging designated for recycling |
| Q2. Rate the degree of fit between the following statement and your cosmetics purchasing behaviour – I am able to pay more for cosmetics in ecological packaging. |
| Q3. Rate the degree of fit between the following statement and your cosmetics purchasing behaviour – If I had the ability, I would purchase cosmetics without packaging (soap, shampoo in bricks, or cosmetics distributed to my own packaging). |
| Q4. Rate the degree of fit between the following statement and your cosmetics purchasing behaviour – I purchase cosmetics in larger packaging and distribute them to multi-use containers. |
| Q5. Rate the degree of fit between the following statement and your cosmetics purchasing behaviour – I avoid products in plastic packaging. |
| Q6. Rate the degree of fit between the following statement and your cosmetics purchasing behaviour – I avoid products in multilayer packaging. |
| Q7. Rate how strongly you agree with the following statement – We need (as soon as possible) a massive introduction of new types of packaging that will not have a negative impact on the environment. |
Structure of CAWI participants by sex, age, and education_
| Sex | Age in years | Education | ||||||
|---|---|---|---|---|---|---|---|---|
| 18–24 | 25–34 | 35–44 | 45–54 | 55–65 | Primary and secondary vocational | Secondary | Higher | |
| Female | 69% | 58% | 50% | 42% | 42% | 55% | 46% | 50% |
| Male | 31% | 42% | 50% | 58% | 58% | 45% | 54% | 50% |
| Other | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Total (N = 1,006) | 109 | 232 | 232 | 221 | 212 | 375 | 371 | 260 |
Absolute difference in cluster centres between initial and final cluster centres form the hierarchical and k-means clustering techniques accordingly_
| Cluster | Initial cluster centres | Final cluster centres | Difference in cluster centres | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | |
| Q1 | 3.25 | 4.03 | 1.7 | 3.23 | 4.31 | 1.77 | 0.02 | −0.28 | −0.07 |
| Q2 | 2.58 | 3.89 | 1.45 | 2.71 | 3.84 | 1.6 | −0.13 | 0.05 | −0.15 |
| Q3 | 2.94 | 3.79 | 2.09 | 2.86 | 4.17 | 1.99 | 0.08 | −0.38 | 0.1 |
| Q4 | 2.69 | 3.9 | 1.7 | 2.9 | 3.7 | 1.81 | −0.21 | 0.2 | −0.11 |
| Q5 | 2.79 | 3.65 | 1.51 | 2.78 | 3.82 | 1.67 | 0.01 | −0.17 | −0.16 |
| Q6 | 3.05 | 3.73 | 1.97 | 3.01 | 3.92 | 2.14 | 0.04 | −0.19 | −0.17 |
| Q7 | 3.53 | 3.98 | 3.18 | 3.45 | 4.33 | 2.98 | 0.08 | −0.35 | 0.2 |
Perfect packaging in the opinion of respondents of the FG_
| Functional considerations | Ecological considerations |
|---|---|
| No permanent fusion of different materials (such as plastic embedded in glass) |
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Final cluster centres from the k-means clustering method and their descriptors_
| n | 305 | 509 | 192 |
|---|---|---|---|
| Q1. Rate the degree of impact that the following issue related to the external packaging has on your cosmetics purchasing decision – Packaging designated for recycling | 4.31 | 3.23 | 1.77 |
| Q2. Rate the degree of fit between the following statement and your cosmetics purchasing behaviour – I am able to pay more for cosmetics in ecological packaging. | 3.84 | 2.71 | 1.6 |
| Q3. Rate the degree of fit between the following statement and your cosmetics purchasing behaviour – If I had the ability, I would purchase cosmetics without packaging (soap, shampoo in bricks, or cosmetics distributed to my own packaging). | 4.17 | 2.86 | 1.99 |
| Q4. Rate the degree of fit between the following statement and your cosmetics purchasing behaviour – I purchase cosmetics in larger packaging and distribute them to multi-use containers. | 3.7 | 2.9 | 1.81 |
| Q5. Rate the degree of fit between the following statement and your cosmetics purchasing behaviour – I avoid products in plastic packaging. | 3.82 | 2.78 | 1.67 |
| Q6. Rate the degree of fit between the following statement and your cosmetics purchasing behaviour – I avoid products in multilayer packaging. | 3.92 | 3.01 | 2.14 |
| Q7. Rate how strongly you agree with the following statement – We need (as soon as possible) a massive introduction of new types of packaging that will not have a negative impact on the environment. | 4.33 | 3.45 | 2.98 |
| Descriptors (modes) | |||
| Sex | Female | Male | Male |
| Age | 25−34 | 35−44 | 45−54 |
| Education level | Sec.* | Sec. | Sec. |
| Persons in a household | 2 | 3 | 2 |