Answer:
Using convenience samples to develop constructs and scales can be risky.
Explanation:
Convenience sampling refers to the process of gathering information from a sample that is conveniently available to the researcher (family members, friends in social media). This is not a random sampling method because not all of the members have the same probability to be selected.
- Using convenience samples to develop constructs and scales can be risky.
From the definition, we can say that using convenience samples to develop constructs and scales can be risky since <u>the information gathered by using this sampling does not necessarily represent the characteristics of the population (since it was not chosen at random).</u>
- It is a time-consuming process when there are a large number of respondents.
This is not a time-consuming process but is actually easier to gather information this way rather than by other methods.
- It is commonly used in the later stages of research.
This process is a gathering of information process and it takes place at early stages of the research
- The representativeness of the sample can be measured because sampling error estimates are not calculated
As we said before, this is not a random sample and therefore it is not necessarily a representative sample.
- It is commonly used to generalize results to the target population.
Although probably our sample shares some characteristics with our target population, this sampling is not used to generalize results to the target population.
Just over 50 percent of adult Americans engage in aerobic physical activity that meets the national guidelines.
More about aerobic physical activity:
Exercise that relies primarily on the aerobic energy-generating mechanism is known as aerobic exercise, often known as endurance exercises, cardio, or cardio-respiratory exercise.
According to the dictionary, the term "aerobic" refers to the use of oxygen to appropriately provide the energy demands of aerobic metabolism during activity.
Benifits of aerobic physical activity:
- Increases the strength of the breathing muscles to make it easier for air to enter and exit the lungs.
- Increases blood flow efficiency and lowers blood pressure
- Increases sensitivity to pain
- Keeps independence during old age
Learn more about aerobic here:
brainly.com/question/2315675
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Answer:
WTO is an intergovernmental organisation ; NAFTA is a 'free trade area' ; EU is an 'Economic Union'
Explanation:
The North American Free Trade Agreement (NAFTA) , European Union (EU) are economies at different level of Economic Integration.
World Trade Organisation is an international intergovernmental organisation, for regulating International Trade - of goods , services , intellectual rights. it also provides framework for trade agreements & dispute settlement. It has 165 member countries,
NAFTA is a 'free trade agreement' between 3 countries : US, Mexico, Canada; which is the lowest form of economic integration - including barrier free trade between the member countries.
EU is an 'Economic Union' between many European countries ; which is the second highest form of economic integration - including barrier free trade, common external tariffs, free labour & capital movement, common monetary & fiscal policy.
