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Jet001 [13]
3 years ago
15

A researcher wishes to study developmental changes in the music people prefer to listen to. The researcher locates 50 people who

are about 20 years old. She sends these people a questionnaire every year for the next 10 years asking about the types of music they prefer to listen to. This is an example of which type of design? A. Longitudinal B. Cross-Sectional
Social Studies
2 answers:
likoan [24]3 years ago
8 0

Answer:

A. Longitudinal                                              

Explanation:

Longitudinal design: In psychological research, the term longitudinal research is defined as a study that involves a particular variable or a specific group of variables possessing the similar subjects, cases, or participants for a specific period, it can even last for months or years.

A longitudinal study is also denoted as a panel study or longitudinal survey which involves the repetition of a particular variable's observation.

In the question above, the given statement is an example of a longitudinal design.

Alex73 [517]3 years ago
6 0

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).

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Answer:

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7 0
3 years ago
The entity integrity rule states that a primary key attribute can be null.
nika2105 [10]

The entity integrity rule states that a primary key attribute can be null. Thus the statement is false.

<h3>What is an entity?</h3>

An entity is refer to any object that exists in reality. These entities are Independent in nature. Each row in a table should be a distinct entity, which is ensured by entity integrity.

The entity integrity rule states that a primary key attribute can not be null as it shows unique characteristics of an entity.No primary key value can be null according to the entity integrity constraint because it is needed to identify specific attribute values in relation.

Therefore, the statement is False.

learn more about entity integrity, here:

brainly.com/question/19593791

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Explanation:

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3 years ago
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</span><span>hostile attributional bias refers to the tendency to interpret every action that other individual takes  as an act of hostility toward us.
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