Missing Values

From PsychWiki - A Collaborative Psychology Wiki

(Difference between revisions)
Jump to: navigation, search
Doug (Talk | contribs)
 
Line 5: Line 5:
*Non-random missing values may occur because the subject purposefully did not answer some questions. [[Image:Fe40.png]] - The question may be confusing, so many subjects do not answer the question. Also, the question may not provide appropriate answer choices, such as “no opinion” or “not applicable”, so the subject chooses not to answer the question. Also, subjects may be reluctant to answer some questions because of social desirability concerns about the content of the question, such as questions about sensitive topics like past crimes, sexual history, prejudice or bias toward certain groups, and etc. See [[Dealing with Missing Data | How do I deal with missing data?]] for how to treat non-random missing values.
*Non-random missing values may occur because the subject purposefully did not answer some questions. [[Image:Fe40.png]] - The question may be confusing, so many subjects do not answer the question. Also, the question may not provide appropriate answer choices, such as “no opinion” or “not applicable”, so the subject chooses not to answer the question. Also, subjects may be reluctant to answer some questions because of social desirability concerns about the content of the question, such as questions about sensitive topics like past crimes, sexual history, prejudice or bias toward certain groups, and etc. See [[Dealing with Missing Data | How do I deal with missing data?]] for how to treat non-random missing values.
-
 
Line 11: Line 10:
----
----
-
◄ Back to [[Research_Tools |Research Tools mainpage]]
+
◄ Back to [[Analyzing Data]] page

Latest revision as of 20:53, 7 September 2009

Why do missing values occur? Missing values are either random or non-random.





◄ Back to Analyzing Data page

Personal tools
Namespaces
Variants
Actions
Navigation
Interaction
Toolbox