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

Author Question: An important measure to decrease threats to internal validity in an experimental study is to a. ... (Read 79 times)

washai

  • Hero Member
  • *****
  • Posts: 523
on: Jul 8, 2018
An important measure to decrease threats to internal validity in an experimental study is to
 
  a. apply the intervention consistently.
  b. improve the precision of measurement methods.
  c. increase the sample size.
  d. randomly assign subjects to study groups.

Question 2

A researcher reviews demographic characteristics of potential study subjects, such as age and gender, to determine whether these characteristics may influence the outcome of the study. This is done to help ensure
 
  a. construct validity.
  b. external validity.
  c. internal validity.
  d. statistical conclusion validity.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ghepp

  • Sr. Member
  • ****
  • Posts: 361
Reply #1 on: Jul 8, 2018
Answer to Question 1

ANS: D

Answer to Question 2

ANS: C


washai

  • Member
  • Posts: 523
Reply 2 on: Jul 8, 2018
Great answer, keep it coming :)

Laurenleakan

  • Member
  • Posts: 309
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan A passenger train crosses Stony Creek Bridge in the Rocky Mountains in 1878. Railroads were importan
Wintrobe tube and Westergren tests are used to measure the ESR. Wintrobe tube and Westergren tests are used to measure the ESR.
Case Study of a Midlatitude Cyclone Case Study of a Midlatitude Cyclone
The Prison Study The Prison Study
Results from Kliegl's study show that older adults can learn complex information-processing Results from Kliegl's study show that older adults can learn complex information-processing
Decrease in mean haplotype heterozygosity Decrease in mean haplotype heterozygosity
Video: Hershey Chase Experiments

For a complete list of videos, visit our video library