« previous next »

Author Question: A sample consists of 25 freshmen, 25 sophomores, 25 juniors, and 25 seniors from a local high school ... (Read 1152 times)

ssal

  • Hero Member
  • *****
  • Posts: 572
on: Jun 19, 2018
A sample consists of 25 freshmen, 25 sophomores, 25 juniors, and 25 seniors from a local high school that has an equal number of students in each class. If the sample was obtained using a list of all the students in the high school, it is probably an example of ____ sampling. If the sample was obtained without a list of students, it is likely an example of ____ sampling.
 
  a. simple random; cluster
 b. stratified random; quota
 c. proportionate stratified random; quota
  d. systematic; convenience

Question 2

A(n) _______________ study is designed to test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify potential side effects.
 
  Fill in the blank(s) with correct word


steff9894

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jun 19, 2018
Answer to Question 1

b

Answer to Question 2

Phase I


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

DNA consists of two complementary strands wound around each other to form DNA consists of two complementary strands wound around each other to form
Sample inventory order form. Sample inventory order form.
Selected Local Anesthetics Selected Local Anesthetics
Sample root cause analysis: Duplicate dose of a narcotic analgesic. Sample root cause analysis: Duplicate dose of a narcotic analgesic.
Selected High-Risk Drugs for Older Adults Selected High-Risk Drugs for Older Adults
A 2.000 g sample of water contains 11.19% H by mass and 88.81% O by mass. What mass of H will ... A 2.000 g sample of water contains 11.19% H by mass and 88.81% O by mass. What mass of H will ...
Video: Neural Reflex Arc Animation

For a complete list of videos, visit our video library