Benchmarks / SurveyBench / What Hollinbrook residents think of three-weekly bin collections / Kimi K3.1 Pro

Measured by Spring Prompt

Kimi K3.1 Pro: What Hollinbrook residents think of three-weekly bin collections

The decision: whether to move general waste collection to every three weeks across the whole district, to do so with extra support for households that need it (a larger bin, or extra collections of nappies and hygiene waste), to pilot it in some areas first, or to drop the proposal. The brief and the data →

Verdict
✗ Not sound
Research score
30 of 100
Analysis rating
608
Head to head, this task
won 0 of 6

Why it is not sound

The analysis

  • Produced no usable analysis

Scorecard

The analysis

This model produced no usable analysis for this task.

The survey it planned

3 screening questions and 10 questions, as the model wrote them.

  1. S1

    Which age group are you in?

    One answer
    • Under 18
    • 18-24
    • 25-34
    • 35-44
    • 45-54
    • 55-64
    • 65-74
    • 75 or over

    Continues if 18-24; 25-34; 35-44; 45-54; 55-64; 65-74; 75 or over

  2. S2

    Do you currently live at an address within the Hollinbrook District Council area?

    One answer
    • Yes
    • No
    • Don't know

    Continues if Yes

  3. S3

    What is your home postcode? It will be used only to confirm your eligibility and assign your response to a ward, and will then be removed from the analysis dataset.

    Open text

    Routing Shown only if S2 is: Yes

    Continues if A valid home postcode within the Hollinbrook District Council area

  4. Q1

    No decision has been made. The council is considering collecting general waste, in the black bin, every three weeks instead of every two. Food waste would still be collected every week and recycling every two weeks. The council estimates this would save about £600,000 a year towards the £3.1 million it needs to save next year. Some councils that have made this change report higher recycling, but the effect in Hollinbrook is not known; Hollinbrook currently recycles 43% of household waste. Less frequent collection could also make it harder for some households to fit their general waste in the black bin. Overall, would you support or oppose three-weekly black-bin collections in Hollinbrook?

    One answer
    • Strongly support
    • Tend to support
    • Neither support nor oppose
    • Tend to oppose
    • Strongly oppose
    • Don't know
  5. Q2

    If black-bin collections changed to every three weeks, what effect, if any, do you think this would have on your household?

    One answer
    • A very positive effect
    • A fairly positive effect
    • No effect
    • A fairly negative effect
    • A very negative effect
    • Don't know
  6. Q3

    Which one of these options do you most prefer?

    One answer
    • Drop the proposal and keep black-bin collections every two weeks
    • Move to three-weekly black-bin collections across the whole district
    • Move to three-weekly black-bin collections across the whole district, with extra support for households that need it: a larger black bin, or extra collections of nappies and hygiene waste
    • Pilot three-weekly black-bin collections in some areas first, then review the results before deciding whether to extend them
    • Don't know
  7. Q4

    Now suppose that, with three-weekly collections, households assessed as needing extra help could receive a larger black bin, or extra collections of nappies and hygiene waste. Overall, would you support or oppose the proposal with this extra support?

    One answer
    • Strongly support
    • Tend to support
    • Neither support nor oppose
    • Tend to oppose
    • Strongly oppose
    • Don't know
  8. Q5

    If black-bin collections changed to every three weeks, which of the following, if any, do you think your household would need? Select all that apply.

    Any that apply
    • A larger black bin
    • Extra collections of nappies
    • Extra collections of continence or other hygiene waste
    • Help or information to recycle more or use the weekly food waste collection
    • None of these - my household would manage without extra support
    • Don't know
  9. Q6

    If black-bin collections changed to every three weeks, how would this change the amount your household recycles, if at all?

    One answer
    • We would recycle much more
    • We would recycle a little more
    • We would recycle about the same as now
    • We would recycle less
    • We already recycle everything we can, so we could not recycle more
    • Don't know
  10. Q7

    Thinking about the current two-weekly service, how full is your household's black bin just before it is usually collected?

    One answer
    • Half full or less
    • More than half full, but not completely full
    • Completely full, but everything fits with the lid closed
    • We have general waste that will not fit in the bin
    • It varies too much to say
    • Not applicable - we do not use a black bin
  11. Q8

    Which, if any, of the following apply to your household? Select all that apply. This is to understand whether different households would be affected differently.

    Any that apply
    • Five or more people, including children, live in my household
    • At least one child aged under 5 lives in my household
    • Someone in my household uses disposable nappies or pull-ups
    • Someone in my household uses continence products, such as pads or pants
    • Someone in my household regularly needs to put other hygiene waste in the black bin
    • None of these
    • Prefer not to say
  12. Q9

    Which of these best describes your home?

    One answer
    • Owned outright
    • Owned with a mortgage or shared ownership
    • Rented from the council
    • Rented from a housing association
    • Rented from a private landlord or letting agency
    • Another arrangement
    • Prefer not to say
  13. Q10

    Is there anything else you would like the council to consider before it decides? Please do not include your name, address or other personal information. This question is optional.

    Open text
Sample plan

Use identical questions with separate links and a mode flag. Open consultation: invite any eligible adult via the council website, social media and the residents' magazine; apply the same screener and basic duplicate-response controls. Report it separately as a self-selected consultation, using respondent counts and qualitative themes, not as a representative estimate of resident support. Residents' panel: draw random addresses from the district address list, stratified by the six wards; invite one adult per address using the next-birthday method and a single-use link, with reminders. Set age (S1) and tenure (Q9) targets to the district profile, monitor response by ward, and weight for selection, ward, age and tenure. The 420-complete target is incompatible with the ward precision requirement: 420 split equally gives 70 per ward and a worst-case unweighted margin of about ±11.7 percentage points, not ±6. To meet the requirement, obtain at least 267 unweighted simple-random-sample-equivalent completes per ward, or 1,602 in total; in the weighted survey, set gross targets so that effective sample size is at least 267 per ward. Use equal ward allocation and weight back to ward populations for district estimates. If funding fixes the panel at 420, use it for district-level estimates only (approximately ±4.8 points unweighted at 95% confidence) and explicitly withdraw or renegotiate the ward estimates rather than presenting them as meeting the requirement. Do not combine the two modes for population estimates. Wording, sampling and reporting must remain neutral: the council leader's preferred outcome cannot be a research objective, and support, opposition, sample bases and limitations must be reported whatever the result.