I believe the answer is: physical development
In longitudinal study same subjects over a certain period of time. From the study above, we can see that on-field-performance is the dependent variables. Since there is no way for the researchers to conduct and proof the psychological development, physical development ia the most suitable choice.
Answer:
Proactive interference.
Explanation:
What the exercise is exemplifying about is "Proactive interference" which is, as it's name indicates, an interference of our memory. When we are looking for a particular word, moment, etc., using our memory, sometimes we find a newer memory that intereferes, that confuses us for a moment. This is what is called proactive interference, and a very good example of that is what occurs to Deanna: she studied Spanish in high school and now, probably years later, she studies French. But, when attempting to do so, she confuses some words with Spanish words.
Answer: Industrial Revolution
Explanation:
In the 1800's, Industrial Revolution became the transition to a new manufacturing process. This occurred between 1760 and 1840. Previously, activities were done majorly by hand production until this revolution came. It changed the industry and made it easier to carry out production.
