2025-2026
Premaster: business research techniques
This summary contains all assignment questions from Business Research
Techniques related to RStudio. The RStudio output has been included, so you do
not have to figure out how the program works on your own. In this way, you will
learn how to effectively interpret and work with the output provided by RStudio.
As a result, you will be well prepared for the practical part of the exam.
Note: This summary is only intended to help learn how to interpret R Studio outputs using example questions. It is not
meant to completely copy the assignment, as exam questions may be different later on.
,Table of contents
Survey research
Archival research
Experimental Research
1
,Survey research
Note: for chronbach’s alpha check the output for raw_alpha or std.alpha.
Survey research = raw alpha
Archival research = std alpha
Experimental research= raw alpha
Reliability analysis output:
Answer Q11:
2
, Note: Look at the r.drop values under Item statistics. These values represent the
item-total correlations.
- If an item has an r.drop < 0.30, the item should be removed.
- If all items have an r.drop > 0.30, all items can be retained.
Answer Q12:
3