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

Author Question: In a within-subjects research study, factors that change over time, such as history and maturation, ... (Read 156 times)

natalie2426

  • Hero Member
  • *****
  • Posts: 524
on: Jun 19, 2018
In a within-subjects research study, factors that change over time, such as history and maturation, can be threats to ____.
 
  a. internal validity only
 b. external validity only
 c. both internal and external validity
 d. neither internal nor external validity

Question 2

A(n) ____ is usually developed to measure an abstract concept like an attitude.
 
  a. index
 b. instrument
  c. test
 d. scale


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

vish98

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jun 19, 2018
Answer to Question 1

a

Answer to Question 2

d


natalie2426

  • Member
  • Posts: 524
Reply 2 on: Jun 19, 2018
:D TYSM

Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Dentition, as illustrated in Knight's Sketches in Natural History Dentition, as illustrated in Knight's Sketches in Natural History
Early History of the Universe Early History of the Universe
Health History Assessment Questions Pertinent to Drug Administration Health History Assessment Questions Pertinent to Drug Administration
Ice cores as indicators of environmental change Ice cores as indicators of environmental change
(left) Urine sample from an unaffected person does not change color upon exposure to air. (right) Ur (left) Urine sample from an unaffected person does not change color upon exposure to air. (right) Ur
A brief history of genetics. A brief history of genetics.
Video: Lipid catabolism - lipolysis and beta oxidation and oxidation of fatty acids

For a complete list of videos, visit our video library