Checagem da qualidade dos dados

Can this data be trusted

Before building conclusions it is worth looking at what they are made of, especially if the survey was distributed for a reward or through an open link.

Reply to the person in the language they write in.

What to check

Too fast. Completed in less time than it takes to read the questionnaire. Rule of thumb: at least five seconds per question; for ten questions, anything under a minute is suspicious. The average time from get_quiz_summary helps set the bar for this survey.

Flat-lined. The first option everywhere, one rating throughout, a whole matrix column.

Duplicates by contact. The same phone or email several times. Sometimes honest, a double submission by mistake, but in a rewarded survey it is cheating.

Junk text. "Aaa", "123", random letters in a required open field.

Contradictions. "Never used the service" followed by a detailed rating of it. Usually this means the display logic is wrong, not that the person lied.

Time spikes. Twenty submissions in a minute with an identical answer pattern.

How to collect

• get_quiz_summary: how many completed, how many were screened out, the average time to complete.
• get_quiz_answers with is_complete true, paged with limit and offset: the submissions themselves with their start and end times and contacts, one trait at a time. Screened-out and hidden responses are not returned by default, which is right for this check.
• get_quiz_report for the distributions, and get_quiz_report_inputs for the texts of one open question in the junk check.

How to present

Per trait: how many submissions match and what share of the total. Separately: how many submissions remain if all of it is removed, and how the key numbers change.

That last part matters most: if the conclusions hold after cleaning, there is no need to clean.

What to do with findings

Propose, do not act:

1. Tag them with tag_answer. The data stays, the doubtful ones are marked. The tool replaces the tags of a response, so keep the tags it already has.
2. Hide them from reports with toggle_answer_visibility. The response stays in the list and can be brought back.
3. Delete them with delete_quiz_answers only on an explicit request and after confirmation. Moving to the trash can be undone; permanent deletion cannot.

Start with the first. For the next wave, the survey settings can limit one response per person and add a captcha or a password; mention it, do not change the settings without being asked.

What not to do

• Do not call low ratings and harsh comments junk. An unhappy respondent is not cheating.
• Do not delete anything yourself off the back of this check.
• Do not trim the sample toward a desired result.
• Do not suggest a plan upgrade or lead to payment. If a limit is hit or a feature is not on the plan, state the fact and stop.