__________ improves working memory efficiency and plays a role in the development and maintenance of synapses in memory areas of the brain, such as the hippocampus

You recently were watching your nephew, who is 13 years old, try to figure out why his bike's gears won't work. You were fascinated by the systematic problem-solving strategies that he is using

You remember just a few months ago he would not have been able to perform at this level of hypothesis testing, but would have most likely tried random solutions haphazardly. According to Piaget, what type of reasoning is he using? hypothetical-deductive reasoning working backwards working in subgoals random operations

What method should be used in order to avoid participants' use of visual cues to differentiate the colas, not by taste, but by appearance?

A) put the participants in different rooms B) blindfold the participants while they are tasting C) put subjects in a room with absolutely no available light source D) alter the colors of the colas to appear as the same color