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-Dominant- [34]
3 years ago
6

Doctors chase and Sanborn are conducting an experiment on effects of caffeine on memory. Participants are randomly assigned to a

caffeine or non-caffeine group; there a recall on of items on a word list is later assist. Which pair correctly identifies a variable in this experiment?
Advanced Placement (AP)
1 answer:
STatiana [176]3 years ago
6 0
The variable is the group that was given caffine, because thats what the doctors manipulated. They possibly altered the natural memory of the participants by giving them caffine. A more specific variable could be how much caffine each participant is given and what time are they given it.
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How did institutional changes between the 1960s and 1980s change state legislatures abilities to develop public policy?
dusya [7]
The Institutional changes between the 1960s and 1980s shifted the public policy from emphasizing public interest to upholding and satisfying the regulations. Among the greatly affected was the educational system. The structures of the different learning institutions were changed to accommodate dynamic market models and work around the expected outcomes of learning.
4 0
3 years ago
Which of the following models best represents an old colonial port zone and its surrounding commercial districts?
Karolina [17]

Answer: Southeast Asian City Model

Explanation: should help

6 0
2 years ago
The title of Jack’s speech is: No Vouchers In Higher Education. Which of the following would be the best thesis statement for hi
Svetradugi [14.3K]

Answer:

C

Explanation:

"Vouchers in higher education do not improve our public schools and colleges, because experiments show us that education vouchers divert much-needed public funds for the few and have weakened the entire system."

3 0
3 years ago
Which of the following is the same as (V3+V2)2 ?
Drupady [299]
Solution. To check whether the vectors are linearly independent, we must answer the following question: if a linear combination of the vectors is the zero vector, is it necessarily true that all the coefficients are zeros?
Suppose that
x 1 ⃗v 1 + x 2 ⃗v 2 + x 3 ( ⃗v 1 + ⃗v 2 + ⃗v 3 ) = ⃗0
(a linear combination of the vectors is the zero vector). Is it necessarily true that x1 =x2 =x3 =0?
We have
x1⃗v1 + x2⃗v2 + x3(⃗v1 + ⃗v2 + ⃗v3) = x1⃗v1 + x2⃗v2 + x3⃗v1 + x3⃗v2 + x3⃗v3
=(x1 + x3)⃗v1 + (x2 + x3)⃗v2 + x3⃗v3 = ⃗0.
Since ⃗v1, ⃗v2, and ⃗v3 are linearly independent, we must have the coeffi-
cients of the linear combination equal to 0, that is, we must have
x1 + x3 = 0 x2 + x3 = 0 ,
x3 = 0
from which it follows that we must have x1 = x2 = x3 = 0. Hence the
vectors ⃗v1, ⃗v2, and ⃗v1 + ⃗v2 + ⃗v3 are linearly independent.
Answer. The vectors ⃗v1, ⃗v2, and ⃗v1 + ⃗v2 + ⃗v3 are linearly independent.
4 0
3 years ago
What statement best describes the relationship between authority and power
yaroslaw [1]

Answer:

The answer is letter d, the authority gives a state the right to use its power. It is because this can explain the relationship of power and authority where in it happens in today's modern world of which an individual can use their power when they have the authority or right to do so

Explanation:

3 0
2 years ago
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