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practical research 2

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12th Grade

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practical research 2
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18 questions

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1.

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1 min • 1 pt

is the basic probability sampling design, in which the sample is selected by a process that does not only give each element in the population a chance of being included in the sample but also makes the selection of evey possible combination of desired number of cases equally likely.

2.

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1 min • 1 pt

is affected by drawing units at regular intervals from a list. The starting point or the first units to be taken is a random choice. It differs from one simple random sampling where each member of the population is not chosen independently.

3.

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1 min • 1 pt

is selecting sub-samples proportionate in size to the significant characteristics of the total population. Different strata in the population are defined and each member of stratum is listed. Simple random sampling is applied to ach stratum.

4.

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1 min • 1 pt

is a technique in which the unit of sampling is not the individual but the naturally occurring group from individuals. The technique is used when it is more convenient to select individual from a defined population.

5.

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1 min • 1 pt

it refers to the procedure as in cluster sampling which moves through a series of stages from more inclusive to the less inclusive sampling units until arriving at the population elements that constitute the desired sampling.

6.

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1 min • 1 pt

is one which the investigator simply reaches out and takes the cases that are at hand.

7.

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1 min • 1 pt

is used when practical considerations prevent the use of probability sampling.

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