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:
PFFFFFT heck if I know, i thought that you were gonna add some question answers or something
Answer: An obsession is an unwanted, intrusive, and often unpleasant thought that causes an increase in anxiety.
Answer: Andrew's view of his life is an example of SITUATIONAL MEANING.
Explanation: SITUATIONAL in this context is referred to as a scenario whereby somethings happen as a result of surrounding circumstances.
Due to the fact that Andrew's sister has a disability, Andrew decided to design computer devices that help his sister and others in her situation interact with the wider world. This factor makes Andrew's work to be seen as situational.