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 70 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
Wow, this really help

milbourne11

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

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?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

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

Structures of the internal nose, mouth, and throat. Structures of the internal nose, mouth, and throat.
Important Human Viral Table Important Human Viral Table
Performing a Spirometry Test to Measure Forced Vital Capacity Performing a Spirometry Test to Measure Forced Vital Capacity
Structures of other important isoprenoids Structures of other important isoprenoids
Study Duddy 1 Study Duddy 1
EXPERIMENTAL INSIGHT EXPERIMENTAL INSIGHT
Video: Complement Proteins Animation

For a complete list of videos, visit our video library