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

Author Question: Randomization does NOT control for A) threats to internal validity. B) threats to statistical ... (Read 115 times)

krzymel

  • Hero Member
  • *****
  • Posts: 548
on: Aug 4, 2018
Randomization does NOT control for
 
  A) threats to internal validity.
  B) threats to statistical validity.
  C) many confounding variables simultaneously.
  D) unknown factors.

Question 2

In using an ad hoc sample, the researcher should
 
  A) use the table of random numbers.
  B) not obtain descriptive information about participants, because it would bias the results.
  C) obtain sufficient descriptive information about participants to establish the limits for generalization.
  D) be cautious about internal validity.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jennafosdick

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Aug 4, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C


krzymel

  • Hero Member
  • *****
  • Posts: 548
Reply #2 on: Aug 4, 2018
Both answers were spot on, thank you once again


jennafosdick

  • Sr. Member
  • ****
  • Posts: 345
Reply #3 on: Aug 4, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

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

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?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Internal view of the heart illustrating the heart chambers, heart layers, and major blood vessels as Internal view of the heart illustrating the heart chambers, heart layers, and major blood vessels as
External and internal male genitalia. External and internal male genitalia.
Negative feedback control of the female reproductive hormones Negative feedback control of the female reproductive hormones
When the O2S voltage rises above 450 mV, the PCM starts to control the fuel mixture based on ... When the O2S voltage rises above 450 mV, the PCM starts to control the fuel mixture based on ...
How does PCA reduce the dimension of a statistical problem? How do you select the reduced ... How does PCA reduce the dimension of a statistical problem? How do you select the reduced ...
Internal and external forces on the parties Internal and external forces on the parties
Video: Definitions of stroke volume, preload definition & Factors influencing stroke volume

For a complete list of videos, visit our video library