Answer: (C) The placebo effect
Explanation:
The placebo effect is one of the type of treatment that is specifically designed for control all the therapeutic values and this effect is basically works on the various types of symptoms that is generated by our brain.
It includes the various types of procedures, inert injections and the tablets. The researcher utilized various types of placebo effect controlling system so that they can easily assess our memory.
According to the given question, the given situation is due to the placebo effect as they can easily determine the quantity of caffeine in the memory.
Therefore, Option (C) is correct.
Answer:
Examples of Primary Groups are Family, Friends, Close Highly influential Social Groups.
Explanation:
Primary groups are the social groups which are small in size are are called the small scale society for a person. People in such groups share their personal life, feelings, activities, etc. Primary groups are first hand close people. Primary groups make up small scale society. Family is the first primary group of a person, then comes the friends from schools, then close family relatives and highly influential people from close groups come. All primary groups play important role in a person's life.
The boundaries around the Mississippi river on the west side, Canada on the north, and Spanish Florida on the south
Researchers often use computers in their experiments to keep from influencing the participants and to keep themselves <u>blind</u> regarding the conditions to which the participants have been assigned.
<h3><u>Why is research blinding crucial?</u></h3>
Blinding is crucial to prevent bias (such as observer bias and demand characteristics) and guarantee the internal validity of a study.
Participants may alter their behavior in ways that affect the outcome that researchers are aiming to measure if they are aware of whether they are in a control or treatment group. If those providing the treatment are aware of the participants' assigned groups, they may treat them differently, which could either directly or indirectly affect the outcome.
Learn more about research blinding with the help of the given link:
brainly.com/question/3453118?referrer=searchResults
#SPJ4
Im not positive but Im pretty sure that #18 answers #17 and an autocracy is ran by someone who has a lot of power
