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

Author Question: An experimental researcher selects students to participate in a study examining the influence of a ... (Read 140 times)

acc299

  • Hero Member
  • *****
  • Posts: 569
on: Mar 7, 2019
An experimental researcher selects students to participate in a study examining the influence of a new math curriculum in an elementary school grade. The researcher randomly assigns the students to the new curriculum or a control group. However, some other events focusing on math may occur outside the classroom. What potential threat to validity exists in this experiment?
◦ Selection
◦ Regression
◦ History
◦ Ability scores
Educational Research: Planning, Conducting, and Evaluating Quantitative and Qualitative Research ¦ Creswell ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by acc299 on Mar 7, 2019

Natalie4ever

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Mar 7, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


acc299

  • Hero Member
  • *****
  • Posts: 569
Reply #2 on: Mar 7, 2019
TY


Natalie4ever

  • Sr. Member
  • ****
  • Posts: 335
Reply #3 on: Mar 7, 2019
You're welcome


« previous next »
 

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?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Experimental Evidence for Infrared Radiation Experimental Evidence for Infrared Radiation
Two behavioral paradigms that are used extensively in the study of the neural mechanisms of ... Two behavioral paradigms that are used extensively in the study of the neural mechanisms of ...
The percentage of Canadian students in Grades 7 through 12 who used drugs The percentage of Canadian students in Grades 7 through 12 who used drugs
A field study of guppy life history evolution. A field study of guppy life history evolution.
Experimental evidence of cytoplasmic localization in an amphibian oocyte. Experimental evidence of cytoplasmic localization in an amphibian oocyte.
Study Tips Study Tips
Video: Muscular System Animation

For a complete list of videos, visit our video library