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Nitella [24]
4 years ago
10

Educational psychologists investigate the impact of different types of instruction on learning. In one study, researchers taught

a math lesson to 9th-graders using the "Inventing to Prepare for Learning (IPL)" instructional cycle. A second group of students received traditional "tell and practice" instruction. After the lessons, both groups studied a worked example of a math problem on their own. Then they took a test that included problems like the worked example. The journal Cognition and Instruction published the results in 2004. Pick the best description of this study: Group of answer choices an observational study to make an estimate or a claim about a population an observational study of an association between two variables. an experiment to establish a cause-and-effect relationship between two variables
Social Studies
1 answer:
rewona [7]4 years ago
5 0

Answer:

An observational study of an association between two variables.

Explanation:

In the given scenario, it is an observational study of an association between two variables. The variables being  :

  • Explanatory variable (independant variable / predictor variable) may explain or influence changes in a response variable.
  • Response variable (dependant variable) measures an outcome of a study.

Observational study observes individuals and records variables but doesn't attempt to influence the response (does not impose a treatment). It allows the researcher to directly observed the behavior of inteest rather than rely on the subject's self-descriptions (Survey) thus allowing the researcher to study the subject in its natural environment, thus removing the potentiallybased effect of the unnatural laboratory setting on the subject's performance.

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Hey there!

Fertile means very suitable for farming - in other words, very rich and full of nutrients plants and food need to grow. When you say soil is fertile, often that means it's capable of producing massive food surpluses due to the fact that it can grow so much.

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Hope this helps! 
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