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lys-0071 [83]
4 years ago
15

explain how kinetoscope invention improves the quality of a persons life as compare to life before it​

Social Studies
1 answer:
shepuryov [24]4 years ago
5 0

Answer:

Before then people could not watch films this invention helped people to be able view moving pictures without sound.

Explanation:

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What type of wave does not need a medium?
mylen [45]

Answer:

Give me brainliest please

Explanation:

5 0
3 years ago
Anxiety disorders are _____. all of these options characterized by overwhelming tension, irrational fear, and physiological arou
Anna11 [10]
Anxiety disorders are characterized by overwhelming tension, irrational fear and physiological arousal.

Anxiety disorders are a relatively broad category of mental disorders with anxiety and fear being the most common characteristics of all of them. Some of the most common symptoms include panic, fear and uneasiness, but also physiological arousal manifested as shortness of breath, heart palpitations and nausea.

There are 5 different types of anxiety disorders; the generalized anxiety disorder, the obsessive-compulsive disorder, the panic disorder, the post-traumatic stress disorder and the social phobia.

Anxiety disorders are occurring as a combination of environmental and genetic risk factors. The global statistics show that they are twice as common in women than in men. In addition, it has been shown that anxiety disorders are the most common mental disorders in the USA. 
4 0
3 years ago
RESEARCH STUDY 7.2: Dr. Parrett is a sports psychologist for a large Southern university. The provost and chancellor have asked
Maru [420]

Hello. This question is incomplete. The full question is:

"Dr. Parrett is a sports psychologist for a large Southern university. The provost and chancellor have asked him to examine the relationship between athletic performance and academic stress at the university. For example, is it the case that the most talented athletes experience the greatest concern over their grades? The provost and chancellor have made it clear to Dr. Parrett that they want a large amount of external validity in the study. He has valid and reliable measures of both athletic performance and academic stress. He knows that he does not have the time or the money to study the entire population of interest.

Imagine that Dr. Parrett wants to use a nonrepresentative sampling technique. Name the three types of nonprobability sampling and explain how each one could be used by Dr. Parrett."

Answer:

The four types of nonprobability sampling are convenience sampling, purposive sampling, quota sampling, and snowball sampling.

Explanation:

Convenience sampling: Allows a selection to be made of a small sample of the target population of the research. This sample is made up of individuals who are available and accessible to research and not through statistical criteria. Regarding the question above, Dr. Parrett can select the athletes he knows and who would like to participate in the research.

Purposive sampling: It allows the sample to be controlled whenever a certain manipulation is possible to generate expected and known results. In the case of the question above, Dr Parrett can search for specific athletes, with characteristics that will generate an expected result in the research.

Snowball sampling: Allows the individuals who make up the sample to invite other individuals to compose the sample, who in turn can invite other individuals. In the case of the question above, Dr. Parret can invite the athletes he wants and ask them to call friends to participate in the survey as well.

Sampling quota: Allows the individuals who will compose the sample to be selected due to their characteristics and qualities. Regarding the question above, Dr. Parrett could only summon athletes with high marks.

8 0
3 years ago
Compared to central Africa, southern and northern coastal regios are more developed Why Give any four reason.​
tangare [24]

Answer:

Damm I did not learn bout that yet

Explanation:

6 0
2 years ago
In loftus and palmer's classic 1974 experiment, participants answered questions about a motor vehicle accident. the central find
Xelga [282]
the experiment revealed that <span>people who answered questions that implied that the vehicles were traveling at a faster rate gave high speed estimates.
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3 years ago
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