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Does the gender of a baby affect its preference for toys?Featured science projectScience project video

Conclusion

The hypothesis that  baby boys  prefer trucks and  baby girls  prefer Barbie dolls, is proven to be true.

Baby girls and boys as young as 6 months old  may not be able to recognize and differentiate gender yet. Therefore the above results should theoretically be free from  social influencing. Some researchers believe that the behavioral preferences of baby girls and boys, as observed in the above experiment, may be hard wired in babies, either genetically or perhaps through hormones.

Also consider

The science fair project can be repeated using older 18 month-old babies ts.

Try to repeat the science project experiment using a Barbie doll and a GI Joe doll instead of trucks. Would there be any difference in your results?

References

The real difference between boys and girls - http://www.parenting.com/article/Pregnancy/Development/The-Real-Difference-Between-Boys-and-Girls

Babies as young as six month olds prefer different toys based on sex - http://scienceblogs.com/cognitivedaily/2009/06/six-month-olds_prefer_differen.php

Why girls like toys and boys prefer cars? - http://www.madeformums.com/baby/why-girls-like-dolls-and-boys-prefer-cars/921.html

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Complexity level:
9
Project cost ($):
30
Time required:
1 day to prepare, 2 days for science fair project
Material availability:
Easily found at a toy store
Safety concerns:

Ensure that babies are handled with care, by qualified day care center staff