G'day, 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
98.74%
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 | 3655 days | 100% |
| Bruce B | 10/10 | 3683 days | 94% |
| barry aling | 10/10 | 3683 days | 94% |
| luiz montanari | 10/10 | 3714 days | 87% |
| EMMANUEL DIAS DA SILVA | 10/10 | 3745 days | 80% |
| Philip Gattey | 9/10 | 3745 days | 79% |
| Ch. Verling | 10/10 | 3775 days | 74% |
| Ulises Guevara | 10/10 | 3775 days | 74% |
| Dusty | 10/10 | 3775 days | 74% |
| Sandra Downie | 10/10 | 4080 days | 7% |
| Gisle Forseth | 9/10 | 4111 days | 0% |
| Asmawi Wahab | 10/10 | 4386 days | 53% |
| Shelli Leverty | 10/10 | 4386 days | 53% |
| Doug Hamerton | 10/10 | 4386 days | 53% |
| Becky Ivers | 10/10 | 4414 days | 53% |
| Mark Stanford | 10/10 | 4414 days | 53% |
| Lesley barber | 10/10 | 4445 days | 53% |
| Barryatkinson | 10/10 | 4445 days | 53% |
| DonKendra1 | 10/10 | 4537 days | 53% |
| Bushy | 10/10 | 4690 days | 53% |
| Calypso | 10/10 | 4720 days | 53% |
| yromanec | 10/10 | 4720 days | 53% |
| ladyharley | 10/10 | 4751 days | 53% |
| ChrisW | 10/10 | 4751 days | 53% |
| oldbiker | 10/10 | 4751 days | 53% |
| TheHoon | 10/10 | 4751 days | 53% |
| Banana | 10/10 | 4780 days | 53% |
| monakeehn | 10/10 | 4780 days | 53% |
| fdjavid | 10/10 | 4780 days | 53% |
| websterau | 9/10 | 4780 days | 52% |
| Dumyati | 10/10 | 4780 days | 53% |
| holidaze28 | 10/10 | 4811 days | 53% |
| michaelclout | 10/10 | 4811 days | 53% |
| ZeroID | 10/10 | 4811 days | 53% |
| donald | 10/10 | 4811 days | 53% |
| mulhooligan | 10/10 | 4811 days | 53% |
| Stanton | 10/10 | 4811 days | 53% |
| kakapo66 | 10/10 | 4842 days | 53% |
| HughConnor | 10/10 | 4842 days | 53% |
| ruudie012 | 10/10 | 4842 days | 53% |
| lynne_florence | 10/10 | 4842 days | 53% |
| johnnyr | 10/10 | 4842 days | 53% |
| pro213 | 10/10 | 4842 days | 53% |
| chrissywatson1711 | 10/10 | 4842 days | 53% |
| pahoia | 10/10 | 4842 days | 53% |
| Iand | 10/10 | 4842 days | 53% |
| jillowen | 9/10 | 4842 days | 52% |
| AbeB | 10/10 | 4872 days | 53% |
| mikereid | 10/10 | 4872 days | 53% |
| Cmax | 10/10 | 4903 days | 53% |
| gnh2011 | 9/10 | 4903 days | 52% |
| taylaw | 10/10 | 4903 days | 53% |
| mariarivas | 10/10 | 4903 days | 53% |
| flippy0 | 10/10 | 4933 days | 53% |
| squids12 | 10/10 | 5025 days | 53% |
| Rosco | 9/10 | 5086 days | 52% |
| blahutp | 9/10 | 5086 days | 52% |
| mrkunz | 10/10 | 5086 days | 53% |
| clouddreamer | 10/10 | 5086 days | 53% |
| May | 10/10 | 5086 days | 53% |
| mitchaoc | 10/10 | 5117 days | 53% |
| Welshy01 | 10/10 | 5117 days | 53% |
| pamc | 10/10 | 5117 days | 53% |
| zaphood | 10/10 | 5117 days | 53% |
| cruisequeens | 10/10 | 5145 days | 53% |
| adriennevergos | 10/10 | 5145 days | 53% |
| damondosterhus | 10/10 | 5145 days | 53% |
| janetc260 | 10/10 | 5145 days | 53% |
| marpet | 10/10 | 5176 days | 53% |
| roofie | 10/10 | 5176 days | 53% |
| musicman | 10/10 | 5176 days | 53% |
| Merran | 10/10 | 5176 days | 53% |
| traceymarcus1 | 10/10 | 5176 days | 53% |
| Budley1 | 10/10 | 5207 days | 53% |
| vjr | 10/10 | 5207 days | 53% |
| DukeMatthews | 10/10 | 5207 days | 53% |
| hellsknipe356 | 10/10 | 5268 days | 53% |
| KDStorey | 10/10 | 5268 days | 53% |
| robinson | 10/10 | 5268 days | 53% |
| JoeLeeKnipe | 10/10 | 5268 days | 53% |
| lstenhouse | 10/10 | 5298 days | 53% |
| doylouys | 10/10 | 5329 days | 53% |
| Jorgy | 10/10 | 5360 days | 53% |
| Phil Thurbon | 9/10 | 5451 days | 52% |
| awolnow | 10/10 | 5482 days | 53% |
| spb97 | 9/10 | 5482 days | 52% |
| stealhorsecowboy | 10/10 | 5482 days | 53% |
| smithy55 | 9/10 | 5482 days | 52% |
| fitbear | 9/10 | 5482 days | 52% |
| zebradiver | 8/10 | 5482 days | 51% |
| cowboyjohn | 10/10 | 5510 days | 53% |
| wahteh | 10/10 | 5510 days | 53% |
| tommarbru | 10/10 | 5510 days | 53% |
| Mathias | 10/10 | 5510 days | 53% |
| JParkinson | 10/10 | 5510 days | 53% |
| sinead drummy | 10/10 | 5541 days | 53% |
| philip andrew-artha | 10/10 | 5541 days | 53% |
| bmaier | 10/10 | 5541 days | 53% |
| alongthorn | 10/10 | 5541 days | 53% |
| KENMCD | 10/10 | 5541 days | 53% |
| kimreed | 10/10 | 5572 days | 53% |
| joshe051 | 10/10 | 5572 days | 53% |
| Travelling_Kiwi | 10/10 | 5572 days | 53% |
| John Stevens | 10/10 | 5602 days | 53% |
| big_rog | 10/10 | 5602 days | 53% |
| HairyHaggis | 10/10 | 5602 days | 53% |
| Mary Long | 10/10 | 5602 days | 53% |
| stegall | 10/10 | 5602 days | 53% |
| Maureen Lee | 10/10 | 5633 days | 53% |
| monkey | 10/10 | 5633 days | 53% |
| renaud bonnet | 10/10 | 5663 days | 53% |
| George Wheatley | 10/10 | 5786 days | 53% |
| eunie | 10/10 | 5816 days | 53% |
| antoinette | 10/10 | 5817 days | 53% |
| Bananna | 10/10 | 5827 days | 53% |
| Anne Cathala | 10/10 | 5829 days | 53% |
| gordy838 | 9/10 | 5837 days | 52% |
| Janet May | 9/10 | 5841 days | 52% |
| Chuffy57 | 10/10 | 5842 days | 53% |
| Tom Speed | 10/10 | 5847 days | 53% |
| Brenda | 10/10 | 5857 days | 53% |
| Jay & N | 10/10 | 5867 days | 9% |
| MoJo | 10/10 | 5875 days | 53% |
| Tomasz Trawniczek | 10/10 | 5875 days | 53% |
| David Lewis | 9/10 | 5889 days | 52% |
| andy Cant | 10/10 | 5890 days | 53% |
| Catherine Robinson | 10/10 | 5893 days | 53% |
| Samantha Fenton | 10/10 | 5898 days | 53% |
| Judy Macdonald | 10/10 | 5901 days | 53% |
| Allison | 10/10 | 5902 days | 9% |
| Gordon Lawrence | 10/10 | 5935 days | 53% |
| ivkemp | 10/10 | 5943 days | 53% |
| shonell | 10/10 | 5966 days | 53% |
| Aimee Marsh | 10/10 | 5967 days | 53% |
| Kathy Reily | 10/10 | 5971 days | 53% |
| CaptainObvious | 10/10 | 5979 days | 53% |
| Darren Rye | 10/10 | 5984 days | 53% |
| Dolphin | 10/10 | 5990 days | 53% |
| Robin | 10/10 | 5999 days | 53% |
| suedavies | 10/10 | 5999 days | 53% |
| Claire O'Donoghue | 10/10 | 6006 days | 53% |
| Mike | 10/10 | 6006 days | 53% |
| barbara hunn | 8/10 | 6010 days | 51% |
| Mike Morgan | 10/10 | 6012 days | 53% |
| Matt Cross | 10/10 | 6013 days | 53% |
| Denelle Adams | 10/10 | 6017 days | 53% |
| Belinda Keys | 10/10 | 6019 days | 53% |
| Tom Gordon | 9/10 | 6019 days | 52% |
| ashos | 10/10 | 6019 days | 53% |
| hottie | 9/10 | 6019 days | 52% |
| Karen Gibson | 10/10 | 6019 days | 53% |
| Michelle Mulgrew | 10/10 | 6027 days | 53% |
| thehammer | 10/10 | 6040 days | 53% |
| Ele | 10/10 | 6042 days | 53% |
| Bridget Cummins | 10/10 | 6048 days | 53% |
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
-4.09% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 55 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 | -4.03% |
| 198 | -4.05% |
| 199 | -4.07% |
| 200 | -4.09% |
| 201 | -4.11% |
| 202 | -4.13% |
| 203 | -4.15% |
| … | … |
Balancing Adjustment
0.47% 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
95%
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.