This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A Columbia University study linked soda consumption to behavior problems in children. Researchers ... (Read 165 times)

bb

  • Hero Member
  • *****
  • Posts: 544
on: Jul 24, 2018
A Columbia University study linked soda consumption to behavior problems in children. Researchers examined data from a previous study that followed 2929 mother-child pairs.
 
  One survey asked about behaviors of the child and also about soda consumption. They found that the more soda the kids drank, the more behavior problems they had. What aspect of a well-designed experiment is absent from this study?
  A) a control group
  B) randomization
  C) blinding
  D) a placebo
  E) all of these

Question 2

In an experiment the primary purpose of blocking is to
 
  A) reduce the within-treatment variation.
  B) reduce the between-treatment variation.
  C) eliminate the need for random assignment of treatments.
  D) eliminate confounding variables.
  E) reduce bias.
Stats: Modeling the World ¦ Bock, Velleman, De Veaux ¦ 4th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nekcihc358

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Jul 24, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


bb

  • Member
  • Posts: 544
Reply 2 on: Jul 24, 2018
Thanks for the timely response, appreciate it

Animal_Goddess

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Excellent

« 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?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Vision. Normal vision and vision problems. Vision. Normal vision and vision problems.
Two children with schistosomiasis. Two children with schistosomiasis.
Risk-taking behavior by young males. Risk-taking behavior by young males.
In middle childhood, children spend increasing amounts of time with peers and friends. In middle childhood, children spend increasing amounts of time with peers and friends.
Continuum of care for children and adolescents. Continuum of care for children and adolescents.
These findings are from Colby and Kohlberg's long-term longitudinal study These findings are from Colby and Kohlberg's long-term longitudinal study
Video: Exocytosis - secretion

For a complete list of videos, visit our video library