« previous next »

Author Question: Single-blind experiments help to control for ____ effects whereas double-blind experiments help to ... (Read 187 times)

jenna1

  • Hero Member
  • *****
  • Posts: 568
on: Jun 19, 2018
Single-blind experiments help to control for ____ effects whereas double-blind experiments help to control for _____ effects.
 
  a. participant; experimenter and participant
  b. experimenter and participant; participant
  c. fatigue; practice
 d. practice; fatigue

Question 2

A researcher would like to select a sample of 50 people so that five different age groups are equally represented in the sample. Assuming that the researcher does not know the entire list of people in the population, which sampling technique should be used?
 
  a. quota sampling
 b. stratified random sampling
 c. proportionate stratified random sampling
  d. cluster sampling


Harbringer

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jun 19, 2018
Answer to Question 1

a

Answer to Question 2

a


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

A Double-Line Spectroscopic Binary A Double-Line Spectroscopic Binary
CRISPR-Cas9 System for In Vivo Genome Editing Experiments CRISPR-Cas9 System for In Vivo Genome Editing Experiments
Effects of Living in Total Darkness on Monoaminergic Systems Effects of Living in Total Darkness on Monoaminergic Systems
General Effects of Hydrotherapy* Comparing Thermo-Hydrotherapy and Cryo-Hydrotherapy General Effects of Hydrotherapy* Comparing Thermo-Hydrotherapy and Cryo-Hydrotherapy
Some Single-Gene Defects for Which Genetic Tests Some Single-Gene Defects for Which Genetic Tests
Effects of disrupted growth hormone function Effects of disrupted growth hormone function
Video: Hemoglobin's affinity with oxygen - carbon dioxide, temperature and bisphosphoglycerate (BPG)

For a complete list of videos, visit our video library