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

Author Question: Some threats to internal validity are related to time and other threats are related to differences ... (Read 119 times)

APUS57

  • Hero Member
  • *****
  • Posts: 571
on: Jun 19, 2018
Some threats to internal validity are related to time and other threats are related to differences between groups. What is a threat related to time?
 
  a. history effects
 b. assignment bias
 c. selection bias
 d. differential attrition

Question 2

Fritz is conducting a survey that addresses several complex social justice issues and he knows that some respondents will likely need clarifications. His best choice for methodology is a(n) ____.
 
  a. group questionnaire
  b. phone interview
  c. mail questionnaire
  d. e-mail questionnaire


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Awesome

  • Sr. Member
  • ****
  • Posts: 280
Reply #1 on: Jun 19, 2018
Answer to Question 1

a

Answer to Question 2

b


APUS57

  • Member
  • Posts: 571
Reply 2 on: Jun 19, 2018
Gracias!

jamesnevil303

  • Member
  • Posts: 337
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

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.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

General differences in food webs and carbon flow among terrestrial and aquatic ecosystems (adapted f General differences in food webs and carbon flow among terrestrial and aquatic ecosystems (adapted f
Many hobbies and leisure activities have some risk of health-related injuries Many hobbies and leisure activities have some risk of health-related injuries
A physician is performing a colonoscopy on a client and viewing the internal structures of the colon A physician is performing a colonoscopy on a client and viewing the internal structures of the colon
Internal intercostals Internal intercostals
What is the differences between RNA seq and RAD seq? What is the differences between RNA seq and RAD seq?
Video: Glucagon (glycogenolysis and gluconeogenesis)

For a complete list of videos, visit our video library