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 Tongariro River Rafting.
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.
Tongariro River Rafting
Valid Reviews
171 Valid Reviews
The Tongariro River Rafting experience has a total of 172 reviews. There are 171 valid reviews that are included when calculating the ranking score and 1 invalid review 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.
Below is the distribution of ratings for the 171 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 147 |
|
86% |
| 9/10 | 17 |
|
10% |
| 8/10 | 5 |
|
3% |
| 7/10 | 2 |
|
1% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
98.07% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.07% and is based on 171 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
14 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 171 valid reviews, the experience has 14 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 14 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 8 |
|
57% |
| 9/10 | 2 |
|
14% |
| 8/10 | 3 |
|
21% |
| 7/10 | 1 |
|
7% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
92.14% Average
The raw data average (mean) for all the Tongariro River Rafting face-to-face reviews is 92.14% and is based on 14 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
99.64%
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 |
|---|---|---|---|
| Vanessa Shankaran Tasker | 10/10 | 220 days | 100% |
| Lynda B | 10/10 | 282 days | 98% |
| V Buys | 10/10 | 526 days | 87% |
| Cody | 10/10 | 557 days | 85% |
| Madonna Thomson | 10/10 | 647 days | 78% |
| Amanda Thomson | 10/10 | 922 days | 53% |
| Peter Little | 10/10 | 951 days | 50% |
| Michaela Liff | 10/10 | 1196 days | 28% |
| Kusum | 10/10 | 1653 days | 7% |
| Betty Dunn | 10/10 | 1681 days | 6% |
| Ruth | 10/10 | 2261 days | 4% |
| Gary Koh | 10/10 | 2474 days | 4% |
| Jan | 10/10 | 2504 days | 4% |
| Alison B. | 10/10 | 2504 days | 4% |
| John Olsen | 10/10 | 2535 days | 4% |
| Peter | 10/10 | 2627 days | 3% |
| Ben | 10/10 | 2657 days | 3% |
| Ian | 10/10 | 2718 days | 3% |
| Gary Walker | 10/10 | 2718 days | 3% |
| Rowella Bacwaden | 10/10 | 2749 days | 3% |
| Eileen H | 10/10 | 2808 days | 3% |
| Brad | 10/10 | 2869 days | 3% |
| Jared London | 10/10 | 2900 days | 3% |
| Helen Turner | 10/10 | 2930 days | 3% |
| James | 10/10 | 2961 days | 3% |
| Isabelle_Qc | 10/10 | 2992 days | 3% |
| Laura | 10/10 | 3022 days | 3% |
| ACE Richardson | 10/10 | 3053 days | 3% |
| Thea :-) | 10/10 | 3114 days | 2% |
| William Webb | 10/10 | 3141 days | 2% |
| Katelyn Mills | 10/10 | 3142 days | 2% |
| Mrs Smith | 10/10 | 3142 days | 2% |
| Mel | 10/10 | 3142 days | 2% |
| Wayne Smith | 10/10 | 3142 days | 2% |
| Kim | 10/10 | 3172 days | 2% |
| Songyang Liu | 10/10 | 3172 days | 2% |
| Mark Haydon | 10/10 | 3506 days | 2% |
| Kathryn Sherlock | 10/10 | 3721 days | 1% |
| Cherie Kemp | 10/10 | 3721 days | 1% |
| Renee Kemp | 10/10 | 3721 days | 1% |
| Patrick McIvor | 10/10 | 3843 days | 1% |
| Lengxi | 10/10 | 3870 days | 1% |
| Uschi Pongratz | 10/10 | 3878 days | 1% |
| Jessica Ruhland | 10/10 | 3878 days | 1% |
| Paul | 7/10 | 3883 days | 0% |
| Philip Piel | 8/10 | 3883 days | 0% |
| Chiara | 8/10 | 3883 days | 0% |
| Jess | 10/10 | 3920 days | 0% |
| TashJ | 10/10 | 3934 days | 1% |
| Funny Schutt | 10/10 | 3934 days | 1% |
| Craig McCarthy | 10/10 | 3965 days | 1% |
| Tim K | 10/10 | 3965 days | 1% |
| Jack Shearer | 10/10 | 4087 days | 0% |
| Monika M | 10/10 | 4118 days | 0% |
| Ian Wilmot | 10/10 | 4178 days | 0% |
| Rodger Lamb | 10/10 | 4209 days | 0% |
| Leah Kyllo | 10/10 | 4268 days | 0% |
| Juliet Battersby | 10/10 | 4268 days | 0% |
| Chris C | 10/10 | 4329 days | 0% |
| Jessica | 10/10 | 4421 days | 1% |
| Mike Hollows | 10/10 | 4513 days | 1% |
| Monique Hollows | 10/10 | 4574 days | 1% |
| Thomas Subritzky | 10/10 | 4575 days | 1% |
| hmsteele | 10/10 | 4603 days | 1% |
| andy godfrey | 9/10 | 4634 days | 1% |
| Chris Nisbet | 8/10 | 4634 days | 1% |
| Michelle Sanders | 9/10 | 4665 days | 1% |
| phil costello | 8/10 | 4695 days | 1% |
| Robyn Orchard | 10/10 | 4726 days | 1% |
| Gisele Phillips | 9/10 | 4726 days | 1% |
| E Wall | 10/10 | 4726 days | 1% |
| Julie | 10/10 | 4756 days | 1% |
| Little | 10/10 | 4756 days | 1% |
| Grahame Keast | 10/10 | 4787 days | 1% |
| Linda Bates | 10/10 | 4787 days | 1% |
| Morgan Buckingham | 10/10 | 4787 days | 1% |
| Bertiethebus | 10/10 | 4909 days | 1% |
| Julian Roots | 10/10 | 4940 days | 1% |
| Lynette Nicolson | 10/10 | 4999 days | 1% |
| RENs Rens | 10/10 | 4999 days | 1% |
| CKDNH | 10/10 | 5060 days | 1% |
| mattus | 9/10 | 5060 days | 1% |
| Ken | 10/10 | 5060 days | 1% |
| Kathy27 | 10/10 | 5060 days | 1% |
| ladywithplants | 9/10 | 5121 days | 1% |
| princessliz | 10/10 | 5121 days | 1% |
| lariley | 9/10 | 5121 days | 1% |
| richardp | 10/10 | 5152 days | 1% |
| prasanth03 | 10/10 | 5183 days | 1% |
| EllieW | 10/10 | 5213 days | 1% |
| Terry | 10/10 | 5274 days | 1% |
| Borderland | 10/10 | 5305 days | 1% |
| jimbob | 10/10 | 5305 days | 1% |
| mopheim | 10/10 | 5305 days | 1% |
| Mats Harstedt | 9/10 | 5314 days | 1% |
| KateS | 10/10 | 5334 days | 1% |
| RubberDuck | 10/10 | 5365 days | 1% |
| Red_Hurring | 10/10 | 5365 days | 1% |
| travelpam | 10/10 | 5365 days | 1% |
| barjjake | 9/10 | 5365 days | 1% |
| cindyd | 10/10 | 5396 days | 1% |
| webstersuk | 10/10 | 5396 days | 1% |
| pezalone | 10/10 | 5396 days | 1% |
| WiseOwl | 10/10 | 5396 days | 1% |
| mausandhari | 10/10 | 5396 days | 1% |
| Pauline | 10/10 | 5426 days | 1% |
| JadesWorld | 9/10 | 5426 days | 1% |
| utstarfish | 10/10 | 5426 days | 1% |
| johnco78 | 10/10 | 5426 days | 1% |
| jrwholey | 10/10 | 5457 days | 1% |
| ShawnM | 10/10 | 5457 days | 1% |
| Tarsh | 10/10 | 5457 days | 1% |
| lindahealey | 10/10 | 5457 days | 1% |
| campbell_steven | 10/10 | 5487 days | 1% |
| markrussell | 10/10 | 5487 days | 1% |
| Bayneer | 10/10 | 5487 days | 1% |
| jaspreetsohal86 | 10/10 | 5487 days | 1% |
| kiwiholly | 10/10 | 5487 days | 1% |
| garethd1980 | 10/10 | 5487 days | 1% |
| Mulliano | 10/10 | 5487 days | 1% |
| CathyK | 10/10 | 5518 days | 1% |
| silver | 10/10 | 5518 days | 1% |
| Meyerclan | 10/10 | 5549 days | 1% |
| poetania | 10/10 | 5579 days | 1% |
| southernboy611 | 10/10 | 5579 days | 1% |
| EvilChris | 10/10 | 5610 days | 1% |
| nia427 | 10/10 | 5640 days | 1% |
| Mags620 | 10/10 | 5640 days | 1% |
| deanblackburn | 10/10 | 5640 days | 1% |
| Heatherorchard | 10/10 | 5671 days | 1% |
| BeetleBom | 10/10 | 5671 days | 1% |
| AnnaBain | 10/10 | 5699 days | 1% |
| geezer | 10/10 | 5699 days | 1% |
| Jen | 10/10 | 5699 days | 1% |
| busheybrew | 10/10 | 5699 days | 1% |
| painter47 | 10/10 | 5730 days | 1% |
| ganbji | 9/10 | 5730 days | 1% |
| charles | 10/10 | 5761 days | 1% |
| alanos | 9/10 | 5761 days | 1% |
| teeneelz | 10/10 | 5761 days | 1% |
| Douggie | 7/10 | 5852 days | 1% |
| celticcolleen | 10/10 | 5975 days | 1% |
| MarcyMark | 10/10 | 6005 days | 1% |
| Susiekj | 10/10 | 6036 days | 1% |
| Kirsten | 10/10 | 6064 days | 1% |
| Ravi Chand | 10/10 | 6095 days | 1% |
| Sika | 10/10 | 6095 days | 1% |
| anthony mcclaren | 9/10 | 6095 days | 1% |
| menzel | 10/10 | 6109 days | 1% |
| joannaw | 10/10 | 6111 days | 1% |
| meisterbaumann | 10/10 | 6126 days | 1% |
| Stefanie Micheler | 10/10 | 6137 days | 1% |
| Aussies | 10/10 | 6156 days | 1% |
| Jake Volle | 10/10 | 6156 days | 1% |
| Jess Woods | 10/10 | 6217 days | 1% |
| emmah | 9/10 | 6253 days | 1% |
| Dave Roebuck | 10/10 | 6279 days | 1% |
| steph_m | 9/10 | 6379 days | 1% |
| JasonL | 8/10 | 6382 days | 0% |
| Tanja Kirschmann | 10/10 | 6383 days | 1% |
| MicheyJ | 10/10 | 6385 days | 1% |
| caz | 10/10 | 6406 days | 1% |
| Cilla | 10/10 | 6411 days | 1% |
| Hannah | 10/10 | 6413 days | 1% |
| karlijn schaap | 10/10 | 6490 days | 1% |
| Murray | 10/10 | 6520 days | 1% |
| Jan Burch | 9/10 | 6633 days | 1% |
| zane mirfin | 10/10 | 6689 days | 1% |
| becky | 10/10 | 6717 days | 1% |
| dave | 9/10 | 6745 days | 1% |
| shinylight | 9/10 | 6777 days | 1% |
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 Tongariro River Rafting experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.74% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 85 days. However the Tongariro River Rafting 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 Tongariro River Rafting experience has been adjusted for 197 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 194 | -2.70% |
| 195 | -2.71% |
| 196 | -2.73% |
| 197 | -2.74% |
| 198 | -2.76% |
| 199 | -2.77% |
| 200 | -2.78% |
| … | … |
Balancing Adjustment
0.26% 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.