Try it yourself: Mobile case management workflow guided example
Learn to design better survey workflows and enhance data quality with this SurveyCTO mobile case management workflow guided example.
6 ways to validate your survey responses and improve data quality
Validate your survey responses and enhance data quality by using SurveyCTO's constraint expressions.
Mobile Case Management: Best Practices for Effective Survey Workflows
Design better survey workflows and enhance data quality with SurveyCTO's mobile case management capability.
9 ways to use SurveyCTO calculations for smarter surveys
Design better forms and enhance data quality with SurveyCTO calculation fields.
New Stata commands to get the most out of your survey’s sensor data
SurveyCTO has developed Stata commands to help you get the best quality from your survey’s sensor data.
Hearing more: Using audio audits to improve data quality
You’ll learn best practices on how to use SurveyCTO’s audio audit feature to hear field interviews and increase the quality of your data. You’ll also learn about the important ethical requirements to consider.
ODK common errors and solutions
ODK ERROR: INDEXED-REPEAT ERROR
This is commonly known as an “indexed-repeat error.” It occurs when a field that is inside a repeat group is directly referenced from outside that repeat group.
ODK common errors and solutions
ODK ERROR: FORM DEFINITION COULD NOT BE PROCESSED
This error means that somewhere in your form definition you have referred to a field that does not actually exist as a field in your form.
ODK common errors and solutions
ODK ERROR: UNMATCHED BEGIN OR END GROUPS
You have received this error because the total number of begin group/begin repeat rows in your form does not match the total number of end group/end repeat rows.
ODK common errors and solutions
ODK ERROR: CALCULATE, RELEVANCE, OR CONSTRAINT EXPRESSION ERROR
You have a calculate, relevance, or constraint expression that has a syntax error that makes the expression incorrect.
ODK common errors and solutions
ODK ERROR: NO PEER CERTIFICATE OR FORM LISTING FAILED
This error appears when your Collect Android app tries to communicate with your server but can't establish a secure (SSL/HTTPS) connection.
ODK common errors and solutions
ODK ERROR: COLLECT HAS CRASHED
This error message means that the Collect app has encountered an issue that prevents it from functioning.
ODK common errors and solutions
ODK ERROR: ONLY QUESTIONS ARE ALLOWED IN FIELD-LIST
You have received an error in your ODK form that says only questions are allowed in the field-list.
ODK common errors and solutions
ODK ERROR: PATH DEPENDENCY ERROR
A dependency cycle error typically indicates that through a series of relevance interdependencies, a field in your form is now relevant upon its own value, which is logically impossible.
ODK common errors and solutions
ODK ERROR: ERROR GETTING FORM LIST
This error means that whichever ODK-based Collect Android app you are using can’t connect to your ODK or ODK-based platform’s server.
Working with a survey firm? Follow this advice to collect better data
If you are launching a research project in a country where you don’t have a physical presence, you may be considering the possibility of collecting data with a sub-contracted survey…
Photo credit: Simrin Makhija, Research Analyst, IFPRI
Pro tips for designing and deploying complex agricultural surveys from IFPRI
Learn survey form design pro tips, best practices, and even explore part of a complex, agricultural survey instrument from IFPRI’s Simrin Makhija.