Select the best description for the following: Children who watch ...

[craiczarry]

Select the best description for the following: Children who watch an average of 2 or more hours of television per day will have higher BMIs than children who watch less than 2 hours of TV per day.
 
  A) It is a directional hypothesis
  B) It is a directional research question
  C) It is a non-directional hypothesis
  D) It is a non-directional research question

Question 2

Which statement best describes the setting in which the research study was conducted?
 
  1. The United States.
  2. An undefined location.
  3. An ambulatory care facility in the southern United States.
  4. An ambulatory care facility.

[yeungji]

Answer to Question 1

A
Feedback:
Directional hypotheses, such as this one, specify not only the existence but the expected direction of the relationship between variables. The statement is not a non-directional research question or a directional research question. A non-directional hypothesis does not stipulate the direction of the relationship.

Answer to Question 2

3
Rationale 1: This setting information is too vague.
Rationale 2: To record the site as simply undefined is too vague and provides no data to the reader of the study.
Rationale 3: Advising the reader of the type of clinical care unit utilized for the research study provides information to allow the reader to understand the population and location involved in the study. The study's location may not include exact identification. Descriptive terms can be used to provide the needed information to the reader.
Rationale 4: This option does give the type of unit used as the setting, but does not give any additional information that would be helpful, such as geographic location.