| Abbott & Berninger (1999) |
√ |
√ |
√ |
√ |
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| Arnbak & Elbro (2000); Elbro & Arnbak (1996) |
√ |
√ |
√ |
|
√ |
√ |
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√ |
| Berninger et al. (2008) |
√ |
√ |
√ |
√ |
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| Berninger et al. (2003) |
√ |
√ |
√ |
√ |
√ |
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√ |
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√ |
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√ |
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√ |
| Fillipini (2007) |
√ |
√ |
√ |
√ |
√ |
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√ |
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√ |
| Harris (2007) |
√ |
√ |
√ |
√ |
√ |
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√ |
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√ |
| Henry (1987, 1988); Henry et al. (1989) |
√ |
√ |
√ |
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√ |
√ |
| Katz & Carlisle (2009); Carlisle (2007) |
√ |
√ |
√ |
√ |
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√ |
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√ |
| Kirk & Gillon (2009) |
√ |
√ |
√ |
√ |
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√ |
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√ |
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√ |
| Lovett et al. (2000) |
√ |
√ |
√ |
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√ |
√ |
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√ |
| Roberts Frank (2008) |
√ |
√ |
√ |
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√ |
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√ |
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√ |
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√ |
| Robinson & Hesse (1981) |
√ |
√ |
√ |
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√ |
√ |
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√ |
| Tomesen & Aarnoutse (1998) |
√ |
√ |
√ |
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√ |
√ |
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√ |
| Tyler et al. (2003) |
√ |
√ |
√ |
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√ |
√ |
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√ |
| Vadasy et al. (2006) - Study 1 |
√ |
√ |
√ |
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√ |
√ |
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√ |
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√ |
| Vadasy et al. (2006) - Study 2 |
√ |
√ |
√ |
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√ |
√ |
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√ |
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√ |