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Vika [28.1K]
3 years ago
12

An experimental researcher selects students who had low scores on a math pre-test and high scores on a math post-test to partici

pate in a study examining the influence of a new math curriculum in an elementary school grade. What potential threat to validity exists in the experiment?
Social Studies
1 answer:
tankabanditka [31]3 years ago
4 0

Answer:

History

Explanation:

The history of the students in relation to their mathematical skills is a potential threat to validity of the experiment.

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Liz, who is very warm and friendly, is the life of the party. In fact, Liz invites friends over for parties or cookouts every we
zzz [600]

Answer:

Extraversion

Explanation:

The Five-Factor Model of personality is a model of the structure of personality according to which human personality can be described using five broad dimensions: Extraversion, Agreeableness, Conscientiousness, Neuroticism, and Openness.

The main characteristics of the dimensions are:

  • Extraversion: Outgoing, socially confident behavior. Extroverts are <u>sociable, talkative and enjoy being the center of attention.</u> Introverts are more quiet and prefer to be on their own.
  • Agreeableness: Individuals who score highly on agreeableness are friendly and co-operative, they are trusting of others and are more altruistic and sympathetic. People who score low on this dimension are less concerned with pleasing other people or making friends, they tend to be more suspicious and are less charitable, they are also competitive and stubborn.
  • Conscientiousness: People who are conscientious are more aware of their actions and the consequences of their behavior than people who are unconscientious. They feel a sense of responsibility towards other people and are careful with their duties, they will be concerned about tidiness, punctuality and hard work.  People who score low on this dimension are less careful and are less concerned about tidiness and punctuality.
  • Neuroticism: People with high neuroticism are persistent worriers. They are fearful and often feel anxious, over-thinking their problems focusing on the negative aspects of them. They tend to become frustrated and angry if things don't go as they wish.  People who score low are less preoccupied and are able to remain more calm under stressful situations.
  • Openness: Willingness to try new activities. People with higher levels of openness enjoy artistic and cultural experiences and are more open to unfamiliar cultures and customs, they are imaginative.  People with low levels of openness are wary of uncertainty and the unknown and feel uncomfortable in unfamiliar situations and prefer familiar environments.

In this example, we can see that Liz is very friendly and she invites friends over for parties every weekend that she is free and she's also involved in other social activities. We can see that <u>Liz is friendly, sociable and likes being the center of attention</u>. Thus, this aspect of Liz'z personality is best described as extraversion.

6 0
3 years ago
Sports-specific integrated progressive and systematic are characteristics of which type of program?
Elanso [62]

The correct answer to this open question is the following.

Although there are no options attached, we can say the following.

Sports-specific integrated progressive and systematic are characteristics of the type of program called functional.

When talking about athletic training programs, one of the most successful and preferred by Athletic coaches are functional programs. These programs are formed with specific exercises that involve mechanical movements related to the coordination of the group of muscles that work together.

These functional exercises simulate common or daily types of movements that are going to be useful when applying the exercise for a determined result.

7 0
3 years ago
The Homo floresiensis specimen a. lived about 20,000 yBP. b. fits Allen’s rule in body proportions. c. had a small brain due to
Darina [25.2K]

Answer:

d. is the result of genetic drift

Explanation:

The Homo floresiensis is a small hominid species that lived on the island of Flores, Indonesia. It has been debated a lot about Homo floresiensis, is it Homo sapiens that shrunk in size because of the conditions, or is it a separate hominid species. The general consensus nowadays is that Homo floresiensis is a separate species of hominid, and this has been based on anatomical and genetic analyses. This species of hominid is very interesting as it only grew to a height of 1.1 meters, was sing tools, but it also lived for some time along side the Homo sapiens, meaning that our species had encountered these small hominids.

4 0
3 years ago
Explain how cohesion and adhesion of water molecules contributes to the life of plants on Earth.
lukranit [14]
Since water is attracted to other molecules, adhesive forces pull the water toward other molecules. Water is transported in plants through both cohesive and adhesive forces; these forces pull water and the dissolved minerals from the roots to the leaves and other parts of the plant.
5 0
2 years ago
How many times has simone biles been to the olympics
sp2606 [1]

Answer:

4 times

Explanation:

4 0
2 years ago
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