Answer:The technique use in this study is referred to as a double blind
Explanation:
A double blind study is the one that both participants and experimenters or researchers are not made aware who is given a certain treatment.
In double blind researchers will not know if what they are receiving is part of the test itself as they interact with participants or they are receiving a placebo.
This process is useful to eliminate and avoid bias results.
For example, in the above text the effect of caffein on attention is being tested so the researchers will not know whether the drink given to them is actual for the test or just the placebo , they don't know who is in control of the experiment.
Answer:
<em>The correct option is C) The United States needed new markets for its goods. </em>
Explanation:
As the industrial revolution began in the 18th century, it became one of the major reasons for economic success of the United States. Rapid industrialization helped the people of United States to produce more goods. As a result, they started to look for new markets where there products could be sold. This increase in business raised the economic success of the people of United States.
The most cities in the united states now have more radios but fewer radio repair shops than they did in 1960 because <span> radios are so cheap now that it's less expensive to buy a new one than it is to repair it. Thank you for posting your question here at brainly. </span>
Answer:
1: people not being aware by crossing the road while it is busy 2: people obstructing the road 3: a person could have gotten out of their car and still been in the road
The correct answer to this open question is the following.
Although there are no options attached we can comment on the following.
Immigrants from China made up a large portion of the labor force during the California gold Rush for the following two reasons:
1) They arrived at the port of San Francisco, California, from China. 2) They worked as miners in the California gold mines and were paid low salaries, working under extremely unhealthy and risky conditions.
Chinese immigrants were treated badly because they were foreigners in a foreign land. White miners were jealous of the Chinese miners because Chinese miners worked very hard and were more efficient.
Years later, in the 1860s, and with the passing of the Pacific Railroad Act, Chinese people worked in the Transcontinental Railroad.
