Kia ora, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for Bularangi Harley Tours of New Zealand.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
Bularangi Harley Tours of New Zealand
Valid Reviews
155 Valid Reviews
The Bularangi Harley Tours of New Zealand experience has a total of 155 valid reviews. There are no invalid reviews that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Within these 155 valid reviews, the experience has 2 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 155 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 137 |
|
88% |
| 9/10 | 16 |
|
10% |
| 8/10 | 2 |
|
1% |
| 7/10 | 0 |
|
0% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
98.71% Average
The raw data average (mean) for all the Bularangi Harley Tours of New Zealand valid reviews is 98.71% and is based on 155 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Weighted Average
98.71%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Werner Staab | 10/10 | 4248 days | 24% |
| Bruce B | 10/10 | 4276 days | 18% |
| barry aling | 10/10 | 4276 days | 18% |
| luiz montanari | 10/10 | 4307 days | 12% |
| EMMANUEL DIAS DA SILVA | 10/10 | 4338 days | 6% |
| Philip Gattey | 9/10 | 4338 days | 6% |
| Ch. Verling | 10/10 | 4368 days | 0% |
| Ulises Guevara | 10/10 | 4368 days | 0% |
| Dusty | 10/10 | 4368 days | 0% |
| Sandra Downie | 10/10 | 4672 days | 100% |
| Gisle Forseth | 9/10 | 4703 days | 99% |
| Asmawi Wahab | 10/10 | 4978 days | 100% |
| Shelli Leverty | 10/10 | 4978 days | 100% |
| Doug Hamerton | 10/10 | 4978 days | 100% |
| Becky Ivers | 10/10 | 5006 days | 100% |
| Mark Stanford | 10/10 | 5006 days | 100% |
| Lesley barber | 10/10 | 5037 days | 100% |
| Barryatkinson | 10/10 | 5037 days | 100% |
| DonKendra1 | 10/10 | 5129 days | 100% |
| Bushy | 10/10 | 5282 days | 100% |
| Calypso | 10/10 | 5312 days | 100% |
| yromanec | 10/10 | 5312 days | 100% |
| ladyharley | 10/10 | 5343 days | 100% |
| ChrisW | 10/10 | 5343 days | 100% |
| oldbiker | 10/10 | 5343 days | 100% |
| TheHoon | 10/10 | 5343 days | 100% |
| Banana | 10/10 | 5372 days | 100% |
| monakeehn | 10/10 | 5372 days | 100% |
| fdjavid | 10/10 | 5372 days | 100% |
| websterau | 9/10 | 5372 days | 99% |
| Dumyati | 10/10 | 5372 days | 100% |
| holidaze28 | 10/10 | 5403 days | 100% |
| michaelclout | 10/10 | 5403 days | 100% |
| ZeroID | 10/10 | 5403 days | 100% |
| donald | 10/10 | 5403 days | 100% |
| mulhooligan | 10/10 | 5403 days | 100% |
| Stanton | 10/10 | 5403 days | 100% |
| kakapo66 | 10/10 | 5434 days | 100% |
| HughConnor | 10/10 | 5434 days | 100% |
| ruudie012 | 10/10 | 5434 days | 100% |
| lynne_florence | 10/10 | 5434 days | 100% |
| johnnyr | 10/10 | 5434 days | 100% |
| pro213 | 10/10 | 5434 days | 100% |
| chrissywatson1711 | 10/10 | 5434 days | 100% |
| pahoia | 10/10 | 5434 days | 100% |
| Iand | 10/10 | 5434 days | 100% |
| jillowen | 9/10 | 5434 days | 99% |
| AbeB | 10/10 | 5464 days | 100% |
| mikereid | 10/10 | 5464 days | 100% |
| Cmax | 10/10 | 5495 days | 100% |
| gnh2011 | 9/10 | 5495 days | 99% |
| taylaw | 10/10 | 5495 days | 100% |
| mariarivas | 10/10 | 5495 days | 100% |
| flippy0 | 10/10 | 5525 days | 100% |
| squids12 | 10/10 | 5617 days | 100% |
| Rosco | 9/10 | 5678 days | 99% |
| blahutp | 9/10 | 5678 days | 99% |
| mrkunz | 10/10 | 5678 days | 100% |
| clouddreamer | 10/10 | 5678 days | 100% |
| May | 10/10 | 5678 days | 100% |
| mitchaoc | 10/10 | 5709 days | 100% |
| Welshy01 | 10/10 | 5709 days | 100% |
| pamc | 10/10 | 5709 days | 100% |
| zaphood | 10/10 | 5709 days | 100% |
| cruisequeens | 10/10 | 5737 days | 100% |
| adriennevergos | 10/10 | 5737 days | 100% |
| damondosterhus | 10/10 | 5737 days | 100% |
| janetc260 | 10/10 | 5737 days | 100% |
| marpet | 10/10 | 5768 days | 100% |
| roofie | 10/10 | 5768 days | 100% |
| musicman | 10/10 | 5768 days | 100% |
| Merran | 10/10 | 5768 days | 100% |
| traceymarcus1 | 10/10 | 5768 days | 100% |
| Budley1 | 10/10 | 5799 days | 100% |
| vjr | 10/10 | 5799 days | 100% |
| DukeMatthews | 10/10 | 5799 days | 100% |
| hellsknipe356 | 10/10 | 5860 days | 100% |
| KDStorey | 10/10 | 5860 days | 100% |
| robinson | 10/10 | 5860 days | 100% |
| JoeLeeKnipe | 10/10 | 5860 days | 100% |
| lstenhouse | 10/10 | 5890 days | 100% |
| doylouys | 10/10 | 5921 days | 100% |
| Jorgy | 10/10 | 5952 days | 100% |
| Phil Thurbon | 9/10 | 6043 days | 99% |
| awolnow | 10/10 | 6074 days | 100% |
| spb97 | 9/10 | 6074 days | 99% |
| stealhorsecowboy | 10/10 | 6074 days | 100% |
| smithy55 | 9/10 | 6074 days | 99% |
| fitbear | 9/10 | 6074 days | 99% |
| zebradiver | 8/10 | 6074 days | 98% |
| cowboyjohn | 10/10 | 6102 days | 100% |
| wahteh | 10/10 | 6102 days | 100% |
| tommarbru | 10/10 | 6102 days | 100% |
| Mathias | 10/10 | 6102 days | 100% |
| JParkinson | 10/10 | 6102 days | 100% |
| sinead drummy | 10/10 | 6133 days | 100% |
| philip andrew-artha | 10/10 | 6133 days | 100% |
| bmaier | 10/10 | 6133 days | 100% |
| alongthorn | 10/10 | 6133 days | 100% |
| KENMCD | 10/10 | 6133 days | 100% |
| kimreed | 10/10 | 6164 days | 100% |
| joshe051 | 10/10 | 6164 days | 100% |
| Travelling_Kiwi | 10/10 | 6164 days | 100% |
| John Stevens | 10/10 | 6194 days | 100% |
| big_rog | 10/10 | 6194 days | 100% |
| HairyHaggis | 10/10 | 6194 days | 100% |
| Mary Long | 10/10 | 6194 days | 100% |
| stegall | 10/10 | 6194 days | 100% |
| Maureen Lee | 10/10 | 6225 days | 100% |
| monkey | 10/10 | 6225 days | 100% |
| renaud bonnet | 10/10 | 6255 days | 100% |
| George Wheatley | 10/10 | 6378 days | 100% |
| eunie | 10/10 | 6408 days | 100% |
| antoinette | 10/10 | 6410 days | 100% |
| Bananna | 10/10 | 6419 days | 100% |
| Anne Cathala | 10/10 | 6421 days | 100% |
| gordy838 | 9/10 | 6429 days | 99% |
| Janet May | 9/10 | 6433 days | 99% |
| Chuffy57 | 10/10 | 6434 days | 100% |
| Tom Speed | 10/10 | 6439 days | 100% |
| Brenda | 10/10 | 6449 days | 100% |
| Jay & N | 10/10 | 6459 days | 59% |
| MoJo | 10/10 | 6467 days | 100% |
| Tomasz Trawniczek | 10/10 | 6467 days | 100% |
| David Lewis | 9/10 | 6481 days | 99% |
| andy Cant | 10/10 | 6482 days | 100% |
| Catherine Robinson | 10/10 | 6485 days | 100% |
| Samantha Fenton | 10/10 | 6490 days | 100% |
| Judy Macdonald | 10/10 | 6494 days | 100% |
| Allison | 10/10 | 6494 days | 59% |
| Gordon Lawrence | 10/10 | 6527 days | 100% |
| ivkemp | 10/10 | 6535 days | 100% |
| shonell | 10/10 | 6558 days | 100% |
| Aimee Marsh | 10/10 | 6559 days | 100% |
| Kathy Reily | 10/10 | 6563 days | 100% |
| CaptainObvious | 10/10 | 6571 days | 100% |
| Darren Rye | 10/10 | 6576 days | 100% |
| Dolphin | 10/10 | 6582 days | 100% |
| Robin | 10/10 | 6591 days | 100% |
| suedavies | 10/10 | 6591 days | 100% |
| Claire O'Donoghue | 10/10 | 6598 days | 100% |
| Mike | 10/10 | 6598 days | 100% |
| barbara hunn | 8/10 | 6603 days | 98% |
| Mike Morgan | 10/10 | 6604 days | 100% |
| Matt Cross | 10/10 | 6605 days | 100% |
| Denelle Adams | 10/10 | 6609 days | 100% |
| Belinda Keys | 10/10 | 6611 days | 100% |
| Tom Gordon | 9/10 | 6611 days | 99% |
| ashos | 10/10 | 6611 days | 100% |
| hottie | 9/10 | 6611 days | 99% |
| Karen Gibson | 10/10 | 6611 days | 100% |
| Michelle Mulgrew | 10/10 | 6619 days | 100% |
| thehammer | 10/10 | 6633 days | 100% |
| Ele | 10/10 | 6634 days | 100% |
| Bridget Cummins | 10/10 | 6640 days | 100% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Bularangi Harley Tours of New Zealand experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.60% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 58 days. However the Bularangi Harley Tours of New Zealand experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Bularangi Harley Tours of New Zealand experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.55% |
| 198 | -3.57% |
| 199 | -3.58% |
| 200 | -3.60% |
| 201 | -3.62% |
| 202 | -3.64% |
| 203 | -3.66% |
| … | … |
Balancing Adjustment
0.42% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
96%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.