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ANNEX F: FACTOR AND CLUSTER ANALYSIS
Factor and cluster analysis: 3 factor solution with variance scores
FACTOR GROUP 1 | FACTOR 1 | FACTOR 2 | FACTOR 3 |
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Q.49 I don't think people should be allowed to drink any alcohol before driving | 0.691 | -0.002 | -0.078 |
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Q.50 I would be ashamed if my friends and family knew I had been drinking alcohol and driving | 0.658 | 0.176 | -0.02 |
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Q.47 I would think less of someone who has a conviction for drinking and driving | 0.543 | 0.041 | 0.057 |
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Q.53 People who drink and drive when they are over the limit are taking a serious risk | 0.434 | 0.41 | -0.138 |
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Q.48 I would try to stop someone I was with if they wanted to drive themself home after several drinks | 0.351 | 0.333 | -0.204 |
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Q.51 I would be happy to be in a car as a passenger with someone who was driving after a few alcoholic drinks | -0.466 | 0.044 | 0.418 |
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| FACTOR GROUP 2 | FACTOR 1 | FACTOR 2 | FACTOR 3 |
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Q.58 The risk of losing my licence would make me less likely to drink and drive | 0.013 | 0.794 | -0.041 |
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Q.57 The risk of being involved in an accident would make me less likely to drink and drive | 0.12 | 0.784 | 0.064 |
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| FACTOR GROUP 3 | FACTOR 1 | FACTOR 2 | FACTOR 3 |
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Q.59 Sometimes, the police let you off with a warning if they stop you when you are slightly over the limit | 0.051 | -0.087 | 0.606 |
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Q.56 Even if you drive when you are over the limit there is not much chance of being stopped by the police | 0.136 | -0.186 | 0.56 |
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Q.52 People in my social circle often encourage others to drink alcohol - even if they're driving | -0.181 | -0.01 | 0.505 |
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Q.55 Good drivers can cope better with driving after they've had a drink than other drivers can | -0.285 | -0.063 | 0.496 |
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Q.54 Sometimes it is easy to end up over the limit without realising it | -0.025 | 0.196 | 0.453 |
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Factor and cluster analysis: Mean factor scores by cluster membership
Cluster No. Cluster Name | FACTOR 1 | FACTOR 2 | FACTOR 3 |
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1 Worried drink drivers | -1.31726 | 0.40987 | -0.77768 |
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2 Disapproving non-drinkers | 0.51673 | -1.70427 | -0.49164 |
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3 Social drink drivers | -0.95519 | -0.72214 | 0.79618 |
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4 Aware of risks but tolerant | -0.32305 | 0.70389 | 0.56473 |
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5 Disapproving but tolerant non-drinkers | 0.96678 | 0.31062 | 0.83902 |
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6 Disapproving non drink drivers | 0.47168 | 0.49994 | -0.83106 |
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Factor and cluster analysis: Mean attitudinal scores by cluster membership
| Worried' Drink Drivers | Social Drink Drivers | Disapproving non-drink driver | Disapproving but tolerant non-drinker | Disapproving non-drinker | Aware of risks but tolerant |
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Base | 125 | 170 | 263 | 190 | 133 | 153 |
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I would think less of someone who has a conviction for drinking and driving | -0.14 | 0.22 | 0.89 | 1.14 | 0.66 | 0.35 |
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I would try to stop someone I was with if they wanted to drive themself home after several drinks | 1.49 | 0.88 | 1.82 | 1.72 | 1.45 | 1.61 |
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I don't think people should be allowed to drink any alcohol before driving | -0.04 | 0.41 | 1.72 | 1.82 | 1.59 | 0.92 |
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I would be ashamed if my friends and family knew I had been drinking alcohol and driving | 0.37 | 0.74 | 1.75 | 1.81 | 1.32 | 1.3 |
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I would be happy to be in a car as a passenger with someone who was driving after a few alcoholic drinks | -1.42 | -0.9 | -1.96 | -1.77 | -1.89 | -1.05 |
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People in my social circle often encourage others to drink alcohol even if they'e driving | -1.49 | -0.68 | -1.75 | -1.08 | -1.48 | -0.83 |
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People who drink and drive when they are over the limit are taking a serious risk | 1.75 | 1.03 | 1.97 | 1.98 | 1.66 | 1.9 |
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Sometimes it is easy to end up over the limit without realising it | -0.02 | 0.46 | -0.22 | 0.73 | -0.25 | 0.83 |
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Good drivers can cope better with driving after they've had a drink than other drivers can | -1.61 | -0.82 | -1.92 | -1.39 | -1.78 | -1.18 |
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