For this investigation the field experiment could be used. As the kids will be in their own natural environment and they will more likely to act naturally like they do in every day life. To test their concentration to play a slide show with different kind of pictures and words and kids would need to remember and write down what they have remembered. This experiment will be carried out for two days one in the morning and the other one in the afternoon. However, on the both days there will be a different pictures and words , so kids won’t remember it and write down what they remembered from yesterday.
The pictures will flash between their eyes for about 5 seconds, the pictures will be showed on the board , in the front of the classroom and after the presentation is finished they will need to write down what they remember. During a second day when kids are having their concentration test again , they will have a normal day throughout as they would have one every single day, this would be more accurate. Also this test would be done for every each year group in the primary school so we can compare them and see whos doing better in what year group.
Once the kids will write down all their answers down , the data will be collected and they would be put in the graph showing us which year group have remembered more pictures and words and in what time of the day they have did better. The strength of this procedure is that kids are in their own natural environment and they dont know that they’re being observed so they won’t show off and pay their full attention to the pictures and words instead of the person that is observing them.
Disadvantage of this is that the kids might feel bad that they haven’t remembered one word or a picture and they will give up as soon at they start , also kids that do much better and are concentrating more in class might do better this might be biased side of the experiment. And also we’re only recording a visual memory , and there might be individually differences as some kids might remember better by hearing way or activity way.