This topic contains a solution. Click here to go to the answer

Author Question: If a lot of time passes between the presentation of each of the levels of your independent ... (Read 12 times)

Metfan725

  • Hero Member
  • *****
  • Posts: 552
If a lot of time passes between the presentation of each of the levels of your independent variables, you should be concerned with history as a threat to ___________________ _ validity
 
  Fill in the blank(s) with correct word

Question 2

Generally, random variables improve the ___________________ _ of an experiment and allow it to be generalized to other people, settings and times.
 
  Fill in the blank(s) with correct word



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bhavsar

  • Sr. Member
  • ****
  • Posts: 351
Answer to Question 1

internal

Answer to Question 2

external validity




Metfan725

  • Member
  • Posts: 552
Reply 2 on: Jun 19, 2018
YES! Correct, THANKS for helping me on my review


dantucker

  • Member
  • Posts: 346
Reply 3 on: Yesterday
:D TYSM

 

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

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?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

For a complete list of videos, visit our video library