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Crank
3 years ago
15

Dr. Johannsen wants to test whether recovering alcoholics perform worse on tests of motor coordination than a group of control p

articipants. Unbeknownst to him, the control group meets at an amusement park three hours before testing and goes on as many rides as possible. They perform worse than the alcoholic group. This is an example of a(n) Group of answer choices regression effect. selection-maturation effect. regression artifact. selection-history effect.
Social Studies
1 answer:
Sergeeva-Olga [200]3 years ago
4 0

Answer:

selection-history effect.

Explanation:

Dr. Johannsen wants to test whether recovering alcoholics perform worse on tests of motor coordination than a group of control participants. Unbeknownst to him, the control group meets at an amusement park three hours before testing and goes on as many rides as possible. They perform worse than the alcoholic group. This is an example of a <u>selection-history effect</u>. Selection-history effect is any activity/event that happens before the start of a study, between pretest and posttest that has the ability to change the conditions of a study an hence its outcome.

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Answer:

Ahmose I

Explanation:

Ahmose I

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3 years ago
What where farm conditions like in north carolina during 1800-1830
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Answer:

Overwhelmingly rural, North Carolinian's were isolated from the world around them, as well as each other, by geographical barriers, limited means of transportation, and their own independent spirit. However "backward" and "indolent," most Tar Heels had a more discerning, if not more favorable, view of their lifestyle and themselves. Times were hard; there is no doubt. Days were long and rewards were slight. Yet an increasing number of Carolinian had succeeded in purchasing their own farms. And, as the Fayetteville Observer, in 1837, proudly pointed out: "The great mass of our population is composed of people who cultivate their own soil, owe no debt, and live within their means. It is true we have no overgrown fortunes, but it is also true that we have few beggars."

Explanation:

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2 years ago
6th grade social studies help me pleaseee
Nuetrik [128]

Answer:

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7 0
3 years ago
Read 2 more answers
An industry has 5 firms, and is found to have violated antitrust laws. The government breaks it up into 10 firms that will share
Andrew [12]

Answer:

2,000 to 1,000

Explanation:

The Herfindahl-Hirschman Index, HHI, is measured by using the market share of each firm in the industry, then square them, and sum the result.

However, supposing that there were only one firm in an industry, that firm would have 100% market share, and the Herfindahl-Hirschman Index (HHI) would equal 10,000, indicating a monopoly.

Thus, in this case, it was initially 5 firms, with no special market share allocated to each of the firm, hence, it is assumed they shared the market share equally, and that will be 2,000 HHI. This shown by each of the 5 firms having 20% market share

HHI = 20² + 20² + 20² + 20² + 20² = 2,000

At the same time, since the government breaks the industry up into 10 firms that will share the market equally. Then, the Herfindahl index will be 1,000. This is shown by HHI = 10² * 10 (since it involves 10 firms with equal share of the market) = 1,000.

Therefore, The Herfindahl index for the industry would change from: 2,000 to 1,000.

7 0
3 years ago
Can you put the events in sequence by today
olga_2 [115]

Answer:

5. The Parthenon was built.

6. Streets were laid out in straight lines.

2. Stone tombs were built.

1. Stone walls protected villages.

4. Religious temples were built again.

3. Palaces were burned.

Explanation:

The text provides us with the timeline of the events in the history of Greek architecture. We learn these dates.

  • 3000 BC – Greeks build villages and <u>stone walls protecting it</u>
  • 1700 BC – Late bronze age, <u>stone tombs</u>, and bridges are built.
  • 1100 BC – Thigs fell apart and <u>palaces were burned</u>.
  • 850 BC – People <u>rebuilt religious temples</u> and things that were previously destroyed.
  • 432 BC – <u>Parthenon was built</u>, as well as large buildings (gymnasiums and stoas).
  • 300 BC – New architecture is built, such as theatres and <u>streets in straight lines.</u>

<u>Years counted BC (before Christ) are going “other way around” – from the highest to the lowest, as they are counting toward 0, the year Jesus Christ was born.</u>

<u>Looking at the listed events above, we can sequence these events like this</u>

<u></u>

  • <u>5. The Parthenon was built.</u>
  • <u>6. Streets were laid out in straight lines.</u>
  • <u>2. Stone tombs were built.</u>
  • <u>1. Stone walls protected villages.</u>
  • <u>4. Religious temples were built again.</u>
  • <u>3. Palaces were burned. </u>
6 0
3 years ago
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