« previous next »

Author Question: Single-blind experiments help to control for ____ effects whereas double-blind experiments help to ... (Read 352 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?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Erythrocytes (red blood cells) moving through a capillary in single file. Erythrocytes (red blood cells) moving through a capillary in single file.
A single base substitution leading to a single amino acid substitution in the hemoglobin beta chain A single base substitution leading to a single amino acid substitution in the hemoglobin beta chain
Children can fast map the meanings of words in a single exposure. Children can fast map the meanings of words in a single exposure.
Some Single-Gene Defects for Which Genetic Tests Some Single-Gene Defects for Which Genetic Tests
Regions involved in the control of genetic expression of the lac operon Regions involved in the control of genetic expression of the lac operon
Resolution of the double Holliday junctions of homologous chromosomes Resolution of the double Holliday junctions of homologous chromosomes
Video: hGH (protein synthesis, growth and development)

For a complete list of videos, visit our video library