Benchmarks / SurveyBench / What Hollinbrook residents think of three-weekly bin collections / Mistral Large 4

Measured by Spring Prompt

Mistral Large 4: 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
26 of 100
Analysis rating
815
Head to head, this task
won 0 of 7

Why it is not sound

The survey

  • Presumed the stakeholder's view instead of testing it
  • A leading question: Q1

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

    Are you aged 18 or over?

    One answer
    • Yes
    • No

    Continues if Yes

  2. S2

    Do you live in the Hollinbrook District Council area?

    One answer
    • Yes
    • No

    Continues if Yes

  3. S3

    Which of these best describes your housing situation?

    One answer
    • Owned outright
    • Owned with a mortgage or loan
    • Rented from the council or a housing association
    • Rented from a private landlord
    • Other
    • Prefer not to say
  4. Q1

    As part of plans to find £3.1 million of savings, Hollinbrook District Council is considering changing general waste (black bin) collections from every two weeks to every three weeks. Food waste would still be collected weekly and recycling every two weeks. To what extent do you support or oppose this change?

    One answer
    • Strongly support
    • Tend to support
    • Neither support nor oppose
    • Tend to oppose
    • Strongly oppose
    • Don't know
    Judges: leading

    Introducing the proposal through the council's £3.1 million savings target frames it as a response to financial necessity before asking about support, steering respondents towards approval.

    Including 'As part of plans to find £3.1 million of savings' provides a justification that pushes respondents to support the change, rather than just asking about the change itself.

  5. Q2

    Which of the following apply to your household? (Please select all that apply)

    Any that apply
    • There is at least one child under 5 years old in the household (using nappies)
    • Someone in the household uses continence products (such as incontinence pads) or hygiene products for medical reasons
    • Someone in the household has a medical condition that creates extra waste (such as dressings, catheters, or stoma bags)
    • None of the above
    • Prefer not to say
  6. Q3

    How easy or difficult would it be for your household to manage general waste if it was collected every three weeks instead of every two weeks?

    Scale

    Scale 1-5: Very difficult to Very easy

  7. Q4

    The council is considering the following options. Which one do you most prefer?

    One answer
    • Move to three-weekly general waste collections across the whole district
    • Move to three-weekly general waste collections, but provide extra support for households that need it (such as a larger bin, or extra collections for nappies and hygiene waste)
    • Pilot three-weekly general waste collections in some areas of the district first, before deciding about the whole district
    • Keep general waste collections as they are now (every two weeks)
  8. Q5

    If the council provided extra support for households that need it – such as a larger general waste bin, or extra collections for nappies and hygiene waste – would this make you more or less supportive of moving to three-weekly collections?

    One answer
    • Much more supportive
    • Somewhat more supportive
    • No change in my view
    • Somewhat less supportive
    • Much less supportive
    • Don't know

    Routing Shown only if Q1 is: Neither support nor oppose; Tend to oppose; Strongly oppose; Don't know

  9. Q6

    Thinking about your household's waste, how much do you currently recycle?

    One answer
    • All or almost all of what can be recycled
    • Most of what can be recycled
    • About half of what can be recycled
    • Some of what can be recycled
    • None of what can be recycled
    • Don't know
  10. Q7

    If general waste was collected every three weeks, how likely would you be to recycle more than you do now?

    One answer
    • Very likely
    • Quite likely
    • Not very likely
    • Not at all likely
    • I already recycle all that I can
    • Don't know
  11. Q8

    This is a quality check question. Please select 'Neither support nor oppose'.

    One answer
    • Strongly support
    • Tend to support
    • Neither support nor oppose
    • Tend to oppose
    • Strongly oppose
    • Don't know
  12. Q9

    What is your age?

    One answer
    • 18-24
    • 25-34
    • 35-44
    • 45-54
    • 55-64
    • 65-74
    • 75 or over
    • Prefer not to say
  13. Q10

    Which ward of Hollinbrook District do you live in?

    One answer
    • Ward 1
    • Ward 2
    • Ward 3
    • Ward 4
    • Ward 5
    • Ward 6
    Judges: assumptive

    It assumes residents know their ward. Residents who do not know have no applicable response, so a required answer would force guessing and compromise geographic comparisons.

    The wards are listed only as 'Ward 1' to 'Ward 6', with no names or areas. Residents cannot map these labels to where they live. There is also no 'don't know' option, which assumes every respondent knows their ward. The ward answers, which the ward-level analysis relies on, would be unreliable.

Sample plan

Two samples will run the identical questionnaire. (1) Open consultation: promoted via the council website, social media, and the residents' magazine; open to any adult resident with the link; target 1,000+ completes for contextual comparison but not for statistical inference. (2) Residents' panel: recruited by letter to randomly selected addresses across the district. CRITICAL NOTE ON PRECISION: To achieve the ward councillors' requirement of ±6 percentage points at 95% confidence for each of the six wards (assuming a 50/50 split), approximately 267 completes are required per ward (total ~1,600). The brief mentions 'about 420 completes' for the panel, which would yield only ±11.7 percentage points per ward (n=70). Therefore, the panel must be stratified by ward with quotas of ~267 per ward to meet the precision requirement; if the sample is limited to 420 total, ward-level results should be reported as indicative only and district-level results used for decision-making. Panel quotas: stratified random sampling with approximately equal numbers per ward, matched to the district's age (S1/Q9) and tenure (S3) profile. Respondents failing the attention check (Q8) will be excluded from analysis.