Psychology Assignment

Due Sunday by 10:59pm Points 60 Submitting a text entry box or a file upload Attempts 0 Allowed Attempts 2

Start Assignment

 Back to Week at a Glance (https://waldenu.instructure.com/courses/182224/modules/items/7585115

EXTERNAL VALIDITY: REPLICATION AND GENERALIZATION

In the Discussion for this week, you evaluated possible confounding variables that could threaten the internal validity of a study. For the Assignment, you will turn your attention to methods that support the external validity of studies. You first learned about external validity in Chapter 4, which refers to the extent to which a study's findings can accurately be generalized to other populations and settings. When the results of a research study are generalizable to additional populations and settings, the study demonstrates external validity.

Replications of studies are essential to demonstrate both generalization and external validity. This week, you will learn about two types of replication procedures—exact replication and conceptual replication—and you will develop original examples of these two replication procedures with the goal of demonstrating generalization and external validity.

(https://cdn-

media.waldenu.edu/2dett4d/Walden/Canvas/Adobe/OrigImage- LgRendition/AdobeStock_85321464.jpeg)

RESOURCES

To prepare:

Read Chapter 14. Think of an original experimental study (i.e., do not use examples from the textbook or found elsewhere) and develop a research question, hypothesis, and prediction. Consider how other researchers interested in your topic would conduct an exact replication and a conceptual replication of your study idea (i.e.: What elements would be the same and which would be different?) and how the replications would be carried out. Consider how the study idea could be carried out with another population and in another setting to demonstrate the concepts of generalization and external validity.

Submit a 2-page paper that responds to the following:

For the original experimental study idea you created provide the following: Research question Hypothesis and prediction Independent and dependent variables Operational definitions for each variable

Be sure to review the Learning Resources before completing this activity.

Review previous chapters if you need to (e.g., Chapter 2 on creating research questions and hypotheses, IV/DV, operational definitions)

Cozby, P. C., & Bates, S. C. (2024). Methods in behavioral research (15th ed.). McGraw Hill.

Chapter 14, “Generalization”

ShortCutsTV (Producer). (2016). Experimental design (https://video.alexanderstreet.com/p/08oNJVZZ3) [Video] Alexander Street. https://video.alexanderstreet.com/watch/experimental-design

Readings 

Media 

BY DAY 7

PSYC_3003_Week4_Assignment_Rubric

Next,

Explain what another researcher would need to know and do to conduct an exact replication of your study idea (i.e.: What elements would be the same and which would be different?). Explain how a different researcher could conduct a conceptual replication of your original study and provide an example of how the replication would be carried out. Propose how your initial experimental study idea could be conducted with a different population or in a different setting to demonstrate generalization. Applying your study idea, make the connection in your own words to explain how replications relate to the concepts of generalization and external validity.

Note: Support your responses within your Assignment with evidence from the assigned Learning Resources. Provide a reference list for resources you used for this Assignment. Use APA style for in-text citations and references.

Before submitting your final assignment, you can check your draft for authenticity. To check your draft, access the Turnitin Drafts from the Start Here area.

1. To submit your completed assignment, save your Assignment as WK4Assgn_LastName_FirstInitial

2. Then, click on Start Assignment near the top of the page. 3. Next, click on Upload File and select Submit Assignment for review.

SUBMISSION INFORMATION

Criteria Ratings Pts

For the original experimental study idea created, included are: The research question, hypothesis & prediction; the independent and dependent variables; operational definitions for each variable.

10 pts

Explanation of what another researcher would need to know and do to conduct an exact replication of the study idea 10 pts

Explanation of how a

10 pts

10 pts A

Response is complete and accurate; contains sufficient details and/or explanation.

8.5 pts B

Response is complete and mostly accurate; contains some details and/or explanation

7.5 pts C

Response is somewhat complete and/or is somewhat accurate; and/or does not contain sufficient details and/or explanation.

6.5 pts D

Response is incomplete or is mostly inaccurate; lacks sufficient details and/or explanation.

0 pts F

Response is incomplete or not provided; answers are inaccurate and/or not explained.

10 pts A

Response is complete and accurate; contains sufficient details and/or explanation; includes supporting information from the Learning Resources.

8.5 pts B

Response is complete and mostly accurate; contains some details and/or explanation; includes supporting information from the Learning Resources.

7.5 pts C

Response is somewhat complete and/or is somewhat accurate; and/or does not contain sufficient details and/or explanation; includes some supporting information from the Learning Resources.

6.5 pts D

Response is incomplete or is mostly inaccurate; lacks sufficient details and/or explanation; does not include supporting information from the Learning Resources.

0 pts F

Response is incomplete or not provided; answers are inaccurate and/or not explained; does not include supporting information from the Learning Resources.

10 pts A

8.5 pts B

7.5 pts C

6.5 pts D

0 pts F

Criteria Ratings Pts

different researcher could conduct a conceptual replication of the original study and provide an example of how the replication would be carried out.

Proposal of how the initial experimental study idea could be conducted with a different population or in a different setting to demonstrate generalization

10 pts

Brief explanation in the student’s words about the connection of how

10 pts

Response is complete and accurate; contains sufficient details and/or explanation; includes supporting information from the Learning Resources.

Response is complete and mostly accurate; contains some details and/or explanation; includes supporting information from the Learning Resources.

Response is somewhat complete and/or is somewhat accurate; and/or does not contain sufficient details and/or explanation; includes some supporting information from the Learning Resources.

Response is incomplete or is mostly inaccurate; lacks sufficient details and/or explanation; does not include supporting information from the Learning Resources.

Response is incomplete or not provided; answers are inaccurate and/or not explained; does not include supporting information from the Learning Resources.

10 pts A Response is complete and accurate; contains sufficient details and/or explanation; includes supporting information from the Learning Resources.

8.5 pts B Response is complete and mostly accurate; contains some details and/or explanation; includes supporting information from the Learning Resources.

7.5 pts C Response is somewhat complete and/or is somewhat accurate; and/or does not contain sufficient details and/or explanation; includes some supporting information from the Learning Resources.

6.5 pts D Response is incomplete or is mostly inaccurate; lacks sufficient details and/or explanation; does not include supporting information from the Learning Resources.

0 pts F Response is incomplete or not provided; answers are inaccurate and/or not explained; does not include supporting information from the Learning Resources.

10 pts A

Response is complete and accurate; contains sufficient details and/or

8.5 pts B

Response is complete and mostly accurate; contains some details and/or

7.5 pts C

Response is somewhat complete and/or is somewhat accurate;

6.5 pts D

Response is incomplete or is mostly inaccurate; lacks sufficient details and/or

0 pts F

Response is incomplete or not provided; answers are inaccurate and/or not

Criteria Ratings Pts

replications relate to the concepts of generalization and external validity applied to study idea

Quality of Writing

10 pts

explanation; includes supporting information from the Learning Resources.

explanation; includes supporting information from the Learning Resources.

and/or does not contain sufficient details and/or explanation; includes some supporting information from the Learning Resources.

explanation; does not include supporting information from the Learning Resources.

explained; does not include supporting information from the Learning Resources.

10 pts A Writing is clear and organized with few or no errors in mechanics, usage, grammar, or spelling (MUGS). There is a preponderance of original writing (i.e., use of own words and proper paraphrasing). Information from the Learning Resources is fully provided and correctly documented with citation(s) and reference(s) in correct APA style.

8.5 pts B Writing is mostly clear and organized with few MUGS errors. Writing is original (i.e., use of own words and proper paraphrasing). Information from the Learning Resources is mostly provided and correctly documented with citation(s) and reference(s) in correct APA style.

7.5 pts C Writing is somewhat clear and organized with some MUGS errors. Most writing is mostly original (i.e., use of own words and proper paraphrasing) but may rely on the use of some direct quotations. Information from the Learning Resources is partially provided and/or incorrectly documented with citation(s) and/or reference(s), and/or citations(s) and

6.5 pts D Writing is mostly unclear and disorganized and/or contains many MUGS errors. There is an overuse of direct quotations and/or ineffective paraphrasing. Information from the Learning Resources is significantly lacking and/or is incorrectly documented and/or citation(s) and reference(s) do not follow correct APA style.

0 pts F Writing is mostly unclear and/or mostly disorganized and/or contains many MUGS errors. There is an underuse of original writing and an overuse of directly quoted content. Information from the Learning Resources is absent and/or is not cited or referenced in any way.

Criteria Ratings Pts

Total Points: 60

reference(s) do not follow correct APA style.