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The CMCH Database of Research (DoR) can be searched using three different tools: Advanced Search, Guided Search, and Browse by CMCH Subject. Today were are going to explore the Advanced Search function and try out an example search for violence and video games.

  • Step One: Go to the CMCH DoR Advanced Search page. Here you can enter your search criteria by typing the word(s) you’d like to search into the text boxes. You can narrow or broaden your search by connecting words using the Boolean operators OR, AND, NOT. Using the drop-down menu you can limit the fields that are searched to Subject term, Abstract, Title, Journal, Author, or Source of Funding or you can keep your search broad by choosing All fields.
  • Step Two: Searches can be limited by Age Group, Study Design, Publication Type, and Year. Simply click on the specific age group, study design, etc that you would like to limit your search to. You can choose as many or as few limits as you’d like. Also, you can limit your search to Peer-reviewed or CMCH Authors.
  • Step Three: After all your search criteria is entered click Search Now to see your results. If you have too many or too few results you can go back and revise your search to make it broader or narrower. For example if you did not get many search results try going back and taking out some the limits you put in place.

Now let’s try out a real search!

Example

I’ve decided that I want to do a search about violence and video games:

  1. I enter the word violence into a search box and enter video games into another search box.
  2.  I change the Boolean operator to AND, so that I am doing a search for violence AND video games.
  3. I leave the drop-down menu on All fields.

I’d like to see if there have been any peer-reviewed experimental studies done with adolescents in the last five years:

  1. I select the age group limit Adolescence (13-17) and the study design limit Experimental Study.
  2. I do not limit the search by Publication Type.
  3. I select the years 2007-2012 by clicking on 2007 and then holding down the computer’s control key to click on the other years. Lastly, I limit the search by Peer-reviewed studies.

 Below is a screenshot of my search criteria (click for bigger image):

Advancedsearch
Here are the six search results I got from this search: 

  • Gentile, D. A., Anderson, C.A., Yukawa, S., et al. (2009).  The effects of prosocial video games on prosocial behaviors: International evidence from correlational, longitudinal, and experimental studies.  Personality and  Social Psychology Bulletin, 35(6), 752-763.
  • Konijn, E. A.,  Nije Bijvank, M. & Bushman, B.  (2007). I wish I were a warrior: The role of wishful identification in the effects of violent video games on aggression in adolescent boys. Developmental Psychology, 43(4), 1038-1044.

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Now go ahead and try out your own search! If you have any questions about the DoR  please do not hesitate to e-mail us at cmch@childrens.harvard.edu.

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