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

Author Question: A major difference between experimental research and ex post facto research is that a. in ... (Read 113 times)

Capo

  • Hero Member
  • *****
  • Posts: 545
on: Jun 20, 2018
A major difference between experimental research and ex post facto research is that
 
  a. in experimental research there are two or more groups of subjects to be compared, while in ex post facto research one group of subjects is being studied.
  b. a test of significance is applied to the data collected in an experiment, while descriptive-type statistics are used to analyze data collected in an ex post facto research.
  c. in experimental research the researcher is always testing a hypothesis, while in ex post facto research hypothesis testing is not involved.
  d. in experimental research manipulation of variables is possible, while in ex post facto it is not possible to manipulate the variables.

Question 2

Choose the internal validity problem that is associated with the situations listed. Presence of the observer increases scores.
 
  a. history
  b. maturation
  c. experimenter effect
  d. statistical regression
  e. diffusion


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

juliaf

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

C


Capo

  • Member
  • Posts: 545
Reply 2 on: Jun 20, 2018
:D TYSM

Dominic

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

The major classes of vertebrates The major classes of vertebrates
The major groupings of living primates. The major groupings of living primates.
Research Methods Research Methods
The two major forms of polynucleotide secondary structure The two major forms of polynucleotide secondary structure
Reactions in assimilation of ammonia and major fates of the fixed nitrogen Reactions in assimilation of ammonia and major fates of the fixed nitrogen
Directional artificial selection favoring the AdhF allele in experimental Drosophila populations. Directional artificial selection favoring the AdhF allele in experimental Drosophila populations.
Video: Types of Shock (Part 2 of 2)

For a complete list of videos, visit our video library