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 163 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
Excellent

nathang24

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Drugs and Human Behavior Drugs and Human Behavior
Children with insecure attachments may show angry behavior with peers, which can lead to peer ... Children with insecure attachments may show angry behavior with peers, which can lead to peer ...
Children’s interactions with older siblings may help promote an understanding of other people’s ... Children’s interactions with older siblings may help promote an understanding of other people’s ...
In middle childhood, children are increasingly able to understand other people’s thoughts, ... In middle childhood, children are increasingly able to understand other people’s thoughts, ...
Oligosaccharides and proteins can be linked to form glycoproteins in two ways Oligosaccharides and proteins can be linked to form glycoproteins in two ways
Children with emotional or behavioural problems living with both parents vs divorce Children with emotional or behavioural problems living with both parents vs divorce
Video: Arthritis

For a complete list of videos, visit our video library