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
98.75%
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 | 3762 days | 100% |
| Bruce B | 10/10 | 3790 days | 94% |
| barry aling | 10/10 | 3790 days | 94% |
| luiz montanari | 10/10 | 3821 days | 87% |
| EMMANUEL DIAS DA SILVA | 10/10 | 3852 days | 80% |
| Philip Gattey | 9/10 | 3852 days | 79% |
| Ch. Verling | 10/10 | 3882 days | 74% |
| Ulises Guevara | 10/10 | 3882 days | 74% |
| Dusty | 10/10 | 3882 days | 74% |
| Sandra Downie | 10/10 | 4186 days | 7% |
| Gisle Forseth | 9/10 | 4217 days | 0% |
| Asmawi Wahab | 10/10 | 4492 days | 77% |
| Shelli Leverty | 10/10 | 4492 days | 77% |
| Doug Hamerton | 10/10 | 4492 days | 77% |
| Becky Ivers | 10/10 | 4520 days | 77% |
| Mark Stanford | 10/10 | 4520 days | 77% |
| Lesley barber | 10/10 | 4551 days | 77% |
| Barryatkinson | 10/10 | 4551 days | 77% |
| DonKendra1 | 10/10 | 4643 days | 77% |
| Bushy | 10/10 | 4796 days | 77% |
| Calypso | 10/10 | 4826 days | 77% |
| yromanec | 10/10 | 4826 days | 77% |
| ladyharley | 10/10 | 4857 days | 77% |
| ChrisW | 10/10 | 4857 days | 77% |
| oldbiker | 10/10 | 4857 days | 77% |
| TheHoon | 10/10 | 4857 days | 77% |
| Banana | 10/10 | 4886 days | 77% |
| monakeehn | 10/10 | 4886 days | 77% |
| fdjavid | 10/10 | 4886 days | 77% |
| websterau | 9/10 | 4886 days | 75% |
| Dumyati | 10/10 | 4886 days | 77% |
| holidaze28 | 10/10 | 4917 days | 77% |
| michaelclout | 10/10 | 4917 days | 77% |
| ZeroID | 10/10 | 4917 days | 77% |
| donald | 10/10 | 4917 days | 77% |
| mulhooligan | 10/10 | 4917 days | 77% |
| Stanton | 10/10 | 4917 days | 77% |
| kakapo66 | 10/10 | 4948 days | 77% |
| HughConnor | 10/10 | 4948 days | 77% |
| ruudie012 | 10/10 | 4948 days | 77% |
| lynne_florence | 10/10 | 4948 days | 77% |
| johnnyr | 10/10 | 4948 days | 77% |
| pro213 | 10/10 | 4948 days | 77% |
| chrissywatson1711 | 10/10 | 4948 days | 77% |
| pahoia | 10/10 | 4948 days | 77% |
| Iand | 10/10 | 4948 days | 77% |
| jillowen | 9/10 | 4948 days | 75% |
| AbeB | 10/10 | 4978 days | 77% |
| mikereid | 10/10 | 4978 days | 77% |
| Cmax | 10/10 | 5009 days | 77% |
| gnh2011 | 9/10 | 5009 days | 75% |
| taylaw | 10/10 | 5009 days | 77% |
| mariarivas | 10/10 | 5009 days | 77% |
| flippy0 | 10/10 | 5039 days | 77% |
| squids12 | 10/10 | 5131 days | 77% |
| Rosco | 9/10 | 5192 days | 75% |
| blahutp | 9/10 | 5192 days | 75% |
| mrkunz | 10/10 | 5192 days | 77% |
| clouddreamer | 10/10 | 5192 days | 77% |
| May | 10/10 | 5192 days | 77% |
| mitchaoc | 10/10 | 5223 days | 77% |
| Welshy01 | 10/10 | 5223 days | 77% |
| pamc | 10/10 | 5223 days | 77% |
| zaphood | 10/10 | 5223 days | 77% |
| cruisequeens | 10/10 | 5251 days | 77% |
| adriennevergos | 10/10 | 5251 days | 77% |
| damondosterhus | 10/10 | 5251 days | 77% |
| janetc260 | 10/10 | 5251 days | 77% |
| marpet | 10/10 | 5282 days | 77% |
| roofie | 10/10 | 5282 days | 77% |
| musicman | 10/10 | 5282 days | 77% |
| Merran | 10/10 | 5282 days | 77% |
| traceymarcus1 | 10/10 | 5282 days | 77% |
| Budley1 | 10/10 | 5313 days | 77% |
| vjr | 10/10 | 5313 days | 77% |
| DukeMatthews | 10/10 | 5313 days | 77% |
| hellsknipe356 | 10/10 | 5374 days | 77% |
| KDStorey | 10/10 | 5374 days | 77% |
| robinson | 10/10 | 5374 days | 77% |
| JoeLeeKnipe | 10/10 | 5374 days | 77% |
| lstenhouse | 10/10 | 5404 days | 77% |
| doylouys | 10/10 | 5435 days | 77% |
| Jorgy | 10/10 | 5466 days | 77% |
| Phil Thurbon | 9/10 | 5557 days | 75% |
| awolnow | 10/10 | 5588 days | 77% |
| spb97 | 9/10 | 5588 days | 75% |
| stealhorsecowboy | 10/10 | 5588 days | 77% |
| smithy55 | 9/10 | 5588 days | 75% |
| fitbear | 9/10 | 5588 days | 75% |
| zebradiver | 8/10 | 5588 days | 74% |
| cowboyjohn | 10/10 | 5616 days | 77% |
| wahteh | 10/10 | 5616 days | 77% |
| tommarbru | 10/10 | 5616 days | 77% |
| Mathias | 10/10 | 5616 days | 77% |
| JParkinson | 10/10 | 5616 days | 77% |
| sinead drummy | 10/10 | 5647 days | 77% |
| philip andrew-artha | 10/10 | 5647 days | 77% |
| bmaier | 10/10 | 5647 days | 77% |
| alongthorn | 10/10 | 5647 days | 77% |
| KENMCD | 10/10 | 5647 days | 77% |
| kimreed | 10/10 | 5678 days | 77% |
| joshe051 | 10/10 | 5678 days | 77% |
| Travelling_Kiwi | 10/10 | 5678 days | 77% |
| John Stevens | 10/10 | 5708 days | 77% |
| big_rog | 10/10 | 5708 days | 77% |
| HairyHaggis | 10/10 | 5708 days | 77% |
| Mary Long | 10/10 | 5708 days | 77% |
| stegall | 10/10 | 5708 days | 77% |
| Maureen Lee | 10/10 | 5739 days | 77% |
| monkey | 10/10 | 5739 days | 77% |
| renaud bonnet | 10/10 | 5769 days | 77% |
| George Wheatley | 10/10 | 5892 days | 77% |
| eunie | 10/10 | 5922 days | 77% |
| antoinette | 10/10 | 5924 days | 77% |
| Bananna | 10/10 | 5933 days | 77% |
| Anne Cathala | 10/10 | 5935 days | 77% |
| gordy838 | 9/10 | 5943 days | 75% |
| Janet May | 9/10 | 5947 days | 75% |
| Chuffy57 | 10/10 | 5948 days | 77% |
| Tom Speed | 10/10 | 5953 days | 77% |
| Brenda | 10/10 | 5963 days | 77% |
| Jay & N | 10/10 | 5973 days | 32% |
| MoJo | 10/10 | 5981 days | 77% |
| Tomasz Trawniczek | 10/10 | 5981 days | 77% |
| David Lewis | 9/10 | 5995 days | 75% |
| andy Cant | 10/10 | 5996 days | 77% |
| Catherine Robinson | 10/10 | 5999 days | 77% |
| Samantha Fenton | 10/10 | 6004 days | 77% |
| Judy Macdonald | 10/10 | 6008 days | 77% |
| Allison | 10/10 | 6008 days | 32% |
| Gordon Lawrence | 10/10 | 6041 days | 77% |
| ivkemp | 10/10 | 6049 days | 77% |
| shonell | 10/10 | 6072 days | 77% |
| Aimee Marsh | 10/10 | 6073 days | 77% |
| Kathy Reily | 10/10 | 6077 days | 77% |
| CaptainObvious | 10/10 | 6085 days | 77% |
| Darren Rye | 10/10 | 6090 days | 77% |
| Dolphin | 10/10 | 6096 days | 77% |
| Robin | 10/10 | 6105 days | 77% |
| suedavies | 10/10 | 6105 days | 77% |
| Claire O'Donoghue | 10/10 | 6112 days | 77% |
| Mike | 10/10 | 6112 days | 77% |
| barbara hunn | 8/10 | 6117 days | 74% |
| Mike Morgan | 10/10 | 6118 days | 77% |
| Matt Cross | 10/10 | 6119 days | 77% |
| Denelle Adams | 10/10 | 6123 days | 77% |
| Belinda Keys | 10/10 | 6125 days | 77% |
| Tom Gordon | 9/10 | 6125 days | 75% |
| ashos | 10/10 | 6125 days | 77% |
| hottie | 9/10 | 6125 days | 75% |
| Karen Gibson | 10/10 | 6125 days | 77% |
| Michelle Mulgrew | 10/10 | 6133 days | 77% |
| thehammer | 10/10 | 6146 days | 77% |
| Ele | 10/10 | 6148 days | 77% |
| Bridget Cummins | 10/10 | 6154 days | 77% |
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
-2.18% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 117 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 | -2.14% |
| 198 | -2.16% |
| 199 | -2.17% |
| 200 | -2.18% |
| 201 | -2.19% |
| 202 | -2.20% |
| 203 | -2.21% |
| … | … |
Balancing Adjustment
0.29% 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
97%
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.