Answer:
B. Cross-Sectional
Explanation:
A Cross-sectional study of design is a kind of design of observational study . In the cross-sectional study, an investigator measures or examines the outcome as well as the exposures in any study participants at the same time.
Cross-sectional design research includes using some different category of the people who differ in some variable of interest but they share few other characteristics, like educational background, socioeconomic status and ethnicity.
A Cross-sectional studies are mostly used by experimenters or researchers to study the developmental psychology in humans.
Thus in the context, the researcher using 50 participants to study the developmental changes in their choices to listen to music is a type of cross sectional research design.
Hence the correct option is (B).
Answer:
In 1820, the constitutionalists rose up in revolution, created a constitution, and forced the return of the Portuguese King. ... On September 7, 1822, Prince Dom Pedro declared Brazil's independence from Portugal, founding the Empire of Brazil, which led to a two-year war of independence.
Answer:
The American civil rights movement started in the mid-1950s. A major catalyst in the push for civil rights was in December 1955, when NAACP activist Rosa Parks refused to give up her seat on a public bus to a white man. Read about Rosa Parks and the mass bus boycott she sparked.
Explanation:
<span>True or false? in most situations, you may pass another vehicle on the right, if the roadway is wide enough to do so:
False
</span>
The answer is letter A. An important key to a good observational records is the use of language. The most known type of observational records that uses the language is narrative recording which focuses all behaviors during the time of recording or observing.
