Answer:
Test-retest reliability
Explanation:
Test-retest reliability has happened in statistical analysis. Test-retest reliability is of reliability. It is the external reliability. It is a statistical measurement tool to measure that the test is valid or not. It is about to conduct a test first time on a population and then again apply to the population. If the score of the first trial and the second trial are the same, the test will be valid. It indicates that the test is replicate and can be used more than one time at a specific period. The test-retest reliability indicates that the test has good validity. It is conducted two times T1 and T2 and the score will be the same. Linear correlation is used to measure the test-retest reliability of a test
B. The work once done by skilled workers was now done by machines and unskilled workers.
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Mass-production techniques and technology called for setting up huge factories with large work force. It created a lot of jobs but due to the division of labor, the skill requirements for a particular job were quite monotonous. Skilled workers were replaced by machines and unskilled machine operators that could perform a single task instead of an array of tasks.
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The correct option here is the option C.
The absolute market economy is the economy in which the government has the complete control of the market and it decides both the supply and the demand for a certain product. The mixed market economy is basically free market with certain government regulations that are placed in order to protect the economy and the consumers. So in order to increase more wealth certain regulations would be loosened in the the mixed market economy and would not happen in command economy.
I think A is your answer, cause that's what pops out at me the most. Hope that helps XD
