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
98.69%
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 | 3532 days | 100% |
| Bruce B | 10/10 | 3560 days | 96% |
| barry aling | 10/10 | 3560 days | 96% |
| luiz montanari | 10/10 | 3591 days | 93% |
| EMMANUEL DIAS DA SILVA | 10/10 | 3622 days | 89% |
| Philip Gattey | 9/10 | 3622 days | 88% |
| Ch. Verling | 10/10 | 3652 days | 85% |
| Ulises Guevara | 10/10 | 3652 days | 85% |
| Dusty | 10/10 | 3652 days | 85% |
| Sandra Downie | 10/10 | 3957 days | 46% |
| Gisle Forseth | 9/10 | 3988 days | 42% |
| Asmawi Wahab | 10/10 | 4263 days | 7% |
| Shelli Leverty | 10/10 | 4263 days | 7% |
| Doug Hamerton | 10/10 | 4263 days | 7% |
| Becky Ivers | 10/10 | 4291 days | 4% |
| Mark Stanford | 10/10 | 4291 days | 4% |
| Lesley barber | 10/10 | 4322 days | 0% |
| Barryatkinson | 10/10 | 4322 days | 0% |
| DonKendra1 | 10/10 | 4414 days | 57% |
| Bushy | 10/10 | 4566 days | 57% |
| Calypso | 10/10 | 4597 days | 57% |
| yromanec | 10/10 | 4597 days | 57% |
| ladyharley | 10/10 | 4628 days | 57% |
| ChrisW | 10/10 | 4628 days | 57% |
| oldbiker | 10/10 | 4628 days | 57% |
| TheHoon | 10/10 | 4628 days | 57% |
| Banana | 10/10 | 4657 days | 57% |
| monakeehn | 10/10 | 4657 days | 57% |
| fdjavid | 10/10 | 4657 days | 57% |
| websterau | 9/10 | 4657 days | 57% |
| Dumyati | 10/10 | 4657 days | 57% |
| holidaze28 | 10/10 | 4688 days | 57% |
| michaelclout | 10/10 | 4688 days | 57% |
| ZeroID | 10/10 | 4688 days | 57% |
| donald | 10/10 | 4688 days | 57% |
| mulhooligan | 10/10 | 4688 days | 57% |
| Stanton | 10/10 | 4688 days | 57% |
| kakapo66 | 10/10 | 4719 days | 57% |
| HughConnor | 10/10 | 4719 days | 57% |
| ruudie012 | 10/10 | 4719 days | 57% |
| lynne_florence | 10/10 | 4719 days | 57% |
| johnnyr | 10/10 | 4719 days | 57% |
| pro213 | 10/10 | 4719 days | 57% |
| chrissywatson1711 | 10/10 | 4719 days | 57% |
| pahoia | 10/10 | 4719 days | 57% |
| Iand | 10/10 | 4719 days | 57% |
| jillowen | 9/10 | 4719 days | 57% |
| AbeB | 10/10 | 4749 days | 57% |
| mikereid | 10/10 | 4749 days | 57% |
| Cmax | 10/10 | 4780 days | 57% |
| gnh2011 | 9/10 | 4780 days | 57% |
| taylaw | 10/10 | 4780 days | 57% |
| mariarivas | 10/10 | 4780 days | 57% |
| flippy0 | 10/10 | 4809 days | 57% |
| squids12 | 10/10 | 4901 days | 57% |
| Rosco | 9/10 | 4963 days | 57% |
| blahutp | 9/10 | 4963 days | 57% |
| mrkunz | 10/10 | 4963 days | 57% |
| clouddreamer | 10/10 | 4963 days | 57% |
| May | 10/10 | 4963 days | 57% |
| mitchaoc | 10/10 | 4994 days | 57% |
| Welshy01 | 10/10 | 4994 days | 57% |
| pamc | 10/10 | 4994 days | 57% |
| zaphood | 10/10 | 4994 days | 57% |
| cruisequeens | 10/10 | 5022 days | 57% |
| adriennevergos | 10/10 | 5022 days | 57% |
| damondosterhus | 10/10 | 5022 days | 57% |
| janetc260 | 10/10 | 5022 days | 57% |
| marpet | 10/10 | 5053 days | 57% |
| roofie | 10/10 | 5053 days | 57% |
| musicman | 10/10 | 5053 days | 57% |
| Merran | 10/10 | 5053 days | 57% |
| traceymarcus1 | 10/10 | 5053 days | 57% |
| Budley1 | 10/10 | 5084 days | 57% |
| vjr | 10/10 | 5084 days | 57% |
| DukeMatthews | 10/10 | 5084 days | 57% |
| hellsknipe356 | 10/10 | 5145 days | 57% |
| KDStorey | 10/10 | 5145 days | 57% |
| robinson | 10/10 | 5145 days | 57% |
| JoeLeeKnipe | 10/10 | 5145 days | 57% |
| lstenhouse | 10/10 | 5174 days | 57% |
| doylouys | 10/10 | 5205 days | 57% |
| Jorgy | 10/10 | 5236 days | 57% |
| Phil Thurbon | 9/10 | 5328 days | 57% |
| awolnow | 10/10 | 5359 days | 57% |
| spb97 | 9/10 | 5359 days | 57% |
| stealhorsecowboy | 10/10 | 5359 days | 57% |
| smithy55 | 9/10 | 5359 days | 57% |
| fitbear | 9/10 | 5359 days | 57% |
| zebradiver | 8/10 | 5359 days | 56% |
| cowboyjohn | 10/10 | 5387 days | 57% |
| wahteh | 10/10 | 5387 days | 57% |
| tommarbru | 10/10 | 5387 days | 57% |
| Mathias | 10/10 | 5387 days | 57% |
| JParkinson | 10/10 | 5387 days | 57% |
| sinead drummy | 10/10 | 5418 days | 57% |
| philip andrew-artha | 10/10 | 5418 days | 57% |
| bmaier | 10/10 | 5418 days | 57% |
| alongthorn | 10/10 | 5418 days | 57% |
| KENMCD | 10/10 | 5418 days | 57% |
| kimreed | 10/10 | 5449 days | 57% |
| joshe051 | 10/10 | 5449 days | 57% |
| Travelling_Kiwi | 10/10 | 5449 days | 57% |
| John Stevens | 10/10 | 5479 days | 57% |
| big_rog | 10/10 | 5479 days | 57% |
| HairyHaggis | 10/10 | 5479 days | 57% |
| Mary Long | 10/10 | 5479 days | 57% |
| stegall | 10/10 | 5479 days | 57% |
| Maureen Lee | 10/10 | 5510 days | 57% |
| monkey | 10/10 | 5510 days | 57% |
| renaud bonnet | 10/10 | 5539 days | 57% |
| George Wheatley | 10/10 | 5662 days | 57% |
| eunie | 10/10 | 5693 days | 57% |
| antoinette | 10/10 | 5694 days | 57% |
| Bananna | 10/10 | 5704 days | 57% |
| Anne Cathala | 10/10 | 5706 days | 57% |
| gordy838 | 9/10 | 5714 days | 57% |
| Janet May | 9/10 | 5718 days | 57% |
| Chuffy57 | 10/10 | 5718 days | 57% |
| Tom Speed | 10/10 | 5724 days | 57% |
| Brenda | 10/10 | 5733 days | 57% |
| Jay & N | 10/10 | 5744 days | 32% |
| MoJo | 10/10 | 5752 days | 57% |
| Tomasz Trawniczek | 10/10 | 5752 days | 57% |
| David Lewis | 9/10 | 5766 days | 57% |
| andy Cant | 10/10 | 5767 days | 57% |
| Catherine Robinson | 10/10 | 5770 days | 57% |
| Samantha Fenton | 10/10 | 5775 days | 57% |
| Judy Macdonald | 10/10 | 5778 days | 57% |
| Allison | 10/10 | 5779 days | 32% |
| Gordon Lawrence | 10/10 | 5811 days | 57% |
| ivkemp | 10/10 | 5820 days | 57% |
| shonell | 10/10 | 5843 days | 57% |
| Aimee Marsh | 10/10 | 5844 days | 57% |
| Kathy Reily | 10/10 | 5848 days | 57% |
| CaptainObvious | 10/10 | 5856 days | 57% |
| Darren Rye | 10/10 | 5860 days | 57% |
| Dolphin | 10/10 | 5867 days | 57% |
| Robin | 10/10 | 5876 days | 57% |
| suedavies | 10/10 | 5876 days | 57% |
| Claire O'Donoghue | 10/10 | 5882 days | 57% |
| Mike | 10/10 | 5882 days | 57% |
| barbara hunn | 8/10 | 5887 days | 56% |
| Mike Morgan | 10/10 | 5888 days | 57% |
| Matt Cross | 10/10 | 5890 days | 57% |
| Denelle Adams | 10/10 | 5894 days | 57% |
| Belinda Keys | 10/10 | 5896 days | 57% |
| Tom Gordon | 9/10 | 5896 days | 57% |
| ashos | 10/10 | 5896 days | 57% |
| hottie | 9/10 | 5896 days | 57% |
| Karen Gibson | 10/10 | 5896 days | 57% |
| Michelle Mulgrew | 10/10 | 5903 days | 57% |
| thehammer | 10/10 | 5917 days | 57% |
| Ele | 10/10 | 5918 days | 57% |
| Bridget Cummins | 10/10 | 5924 days | 57% |
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
-3.87% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 50 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 | -3.81% |
| 198 | -3.83% |
| 199 | -3.85% |
| 200 | -3.87% |
| 201 | -3.89% |
| 202 | -3.91% |
| 203 | -3.93% |
| … | … |
Balancing Adjustment
0.45% 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.