Qualitative Comparative Analysis

[Liza]

Dear all,


I am applying a crisp QCA analysis to my data and, I am using the fuzzy command from Stata 13. There is some results that I can not understand.

From the literature I know that consistency for crisp sets is the percentage of cases in each row displaying the outcome.

When I use the fuzzy command

result_1 SJRm_cr NI_cr HCD_cr DIC_cr , label (R S N H D ) settest(yvo)

I obtain the following table


Y-CONSISTENCY vs All Other Y-CONSISTENCY

Set	YCons	OthYCons	F	P	NumBestFit
snhd	0	0.5	19.23	0	6
snhD	0	0.417	16.48	0	2
sNhd	0	0.4	16.03	0	1
sNHd	0	0.417	16.48	0	2
sNHD	1	0.333	46.15	0	2
Snhd	0	0.435	17.01	0	3
SnhD	0	0.4	16.03	0	1
SnHD	1	0.36	42.74	0	1
SNHd	0	0.4	16.03	0	1
SNHD	1	0.158	97.44	0	7

When I use the fuzzy command for the negation of the outcome, I obtain the following table

Y-CONSISTENCY vs All Other Y-CONSISTENCY

Set	YCons	OthYCons	F	P	NumBestFit
snhd	1	0.5	19.23	0	6
snhD	1	0.583	16.48	0	2
sNhd	1	0.6	16.03	0	1
sNHd	1	0.583	16.48	0	2
sNHD	0	0.667	46.15	0	2
Snhd	1	0.565	17.01	0	3
SnhD	1	0.6	16.03	0	1
SnHD	0	0.64	42.74	0	1
SNHd	1	0.6	16.03	0	1
SNHD	0	0.842	97.44	0	7

How are the values from YCons calculated?

Thanks in advance!

Best,

Liza

[Rich Goldstein]

I cannot find a command called "result_1" - where does it come from?

[Liza]

The right command is

 
 fuzzy result_1 SJRm_cr NI_cr HCD_cr DIC_cr , label (R S N H D ) settest(yvo)

I am sorry!

[Ammari Aymen]

yvo performs and displays the results (configuration; y consistency; all other sets’ y consistency; F distribution; p-value; number of best-fitting observations) of a test between each set’s y consistency and the y consistency of all other configurations (excluding only the configuration in question). This “other” y consistency is calculated by taking the maximum value of every other configuration, excluding the configuration to be tested, and computing its inclusion in the outcome set. This test is generally applicable only if the configurations comprise binary crisp sets.
hope this help !

[Farah Naz]

I am currently working on a project that involves Fuzzy Set Qualitative Comparative Analysis (QCA) in Stata. I have encountered some challenges with the code and would greatly appreciate any assistance or guidance from experienced members.

If anyone has expertise in Fuzzy Set QCA or can point me in the right direction for relevant resources, I would be extremely grateful. Sharing sample code or providing insights on best practices would be immensely helpful.