Hey, 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
169 Valid Reviews
The Tongariro River Rafting experience has a total of 170 reviews. There are 169 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 169 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 145 |
|
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% |
98.05% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.05% and is based on 169 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 169 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
99.63%
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 |
|---|---|---|---|
| V Buys | 10/10 | 249 days | 100% |
| Cody | 10/10 | 280 days | 99% |
| Madonna Thomson | 10/10 | 370 days | 96% |
| Amanda Thomson | 10/10 | 645 days | 79% |
| Peter Little | 10/10 | 674 days | 77% |
| Michaela Liff | 10/10 | 919 days | 54% |
| Kusum | 10/10 | 1376 days | 17% |
| Betty Dunn | 10/10 | 1404 days | 16% |
| Ruth | 10/10 | 1984 days | 5% |
| Gary Koh | 10/10 | 2197 days | 4% |
| Jan | 10/10 | 2227 days | 4% |
| Alison B. | 10/10 | 2227 days | 4% |
| John Olsen | 10/10 | 2258 days | 4% |
| Peter | 10/10 | 2350 days | 4% |
| Ben | 10/10 | 2380 days | 4% |
| Ian | 10/10 | 2441 days | 4% |
| Gary Walker | 10/10 | 2441 days | 4% |
| Rowella Bacwaden | 10/10 | 2472 days | 4% |
| Eileen H | 10/10 | 2531 days | 4% |
| Brad | 10/10 | 2592 days | 4% |
| Jared London | 10/10 | 2623 days | 4% |
| Helen Turner | 10/10 | 2653 days | 3% |
| James | 10/10 | 2684 days | 3% |
| Isabelle_Qc | 10/10 | 2715 days | 3% |
| Laura | 10/10 | 2745 days | 3% |
| ACE Richardson | 10/10 | 2776 days | 3% |
| Thea :-) | 10/10 | 2837 days | 3% |
| William Webb | 10/10 | 2864 days | 3% |
| Katelyn Mills | 10/10 | 2865 days | 3% |
| Mrs Smith | 10/10 | 2865 days | 3% |
| Mel | 10/10 | 2865 days | 3% |
| Wayne Smith | 10/10 | 2865 days | 3% |
| Kim | 10/10 | 2895 days | 3% |
| Songyang Liu | 10/10 | 2895 days | 3% |
| Mark Haydon | 10/10 | 3229 days | 2% |
| Kathryn Sherlock | 10/10 | 3444 days | 2% |
| Cherie Kemp | 10/10 | 3444 days | 2% |
| Renee Kemp | 10/10 | 3444 days | 2% |
| Patrick McIvor | 10/10 | 3566 days | 2% |
| Lengxi | 10/10 | 3593 days | 1% |
| Uschi Pongratz | 10/10 | 3601 days | 1% |
| Jessica Ruhland | 10/10 | 3601 days | 1% |
| Paul | 7/10 | 3606 days | 1% |
| Philip Piel | 8/10 | 3606 days | 1% |
| Chiara | 8/10 | 3606 days | 1% |
| Jess | 10/10 | 3643 days | 1% |
| TashJ | 10/10 | 3657 days | 1% |
| Funny Schutt | 10/10 | 3657 days | 1% |
| Craig McCarthy | 10/10 | 3688 days | 1% |
| Tim K | 10/10 | 3688 days | 1% |
| Jack Shearer | 10/10 | 3810 days | 1% |
| Monika M | 10/10 | 3841 days | 1% |
| Ian Wilmot | 10/10 | 3901 days | 1% |
| Rodger Lamb | 10/10 | 3932 days | 1% |
| Leah Kyllo | 10/10 | 3991 days | 1% |
| Juliet Battersby | 10/10 | 3991 days | 1% |
| Chris C | 10/10 | 4052 days | 1% |
| Jessica | 10/10 | 4144 days | 0% |
| Mike Hollows | 10/10 | 4236 days | 0% |
| Monique Hollows | 10/10 | 4297 days | 0% |
| Thomas Subritzky | 10/10 | 4298 days | 0% |
| hmsteele | 10/10 | 4326 days | 0% |
| andy godfrey | 9/10 | 4357 days | 0% |
| Chris Nisbet | 8/10 | 4357 days | 0% |
| Michelle Sanders | 9/10 | 4388 days | 1% |
| phil costello | 8/10 | 4418 days | 1% |
| Robyn Orchard | 10/10 | 4449 days | 1% |
| Gisele Phillips | 9/10 | 4449 days | 1% |
| E Wall | 10/10 | 4449 days | 1% |
| Julie | 10/10 | 4479 days | 1% |
| Little | 10/10 | 4479 days | 1% |
| Grahame Keast | 10/10 | 4510 days | 1% |
| Linda Bates | 10/10 | 4510 days | 1% |
| Morgan Buckingham | 10/10 | 4510 days | 1% |
| Bertiethebus | 10/10 | 4632 days | 1% |
| Julian Roots | 10/10 | 4663 days | 1% |
| Lynette Nicolson | 10/10 | 4722 days | 1% |
| RENs Rens | 10/10 | 4722 days | 1% |
| CKDNH | 10/10 | 4783 days | 1% |
| mattus | 9/10 | 4783 days | 1% |
| Ken | 10/10 | 4783 days | 1% |
| Kathy27 | 10/10 | 4783 days | 1% |
| ladywithplants | 9/10 | 4844 days | 1% |
| princessliz | 10/10 | 4844 days | 1% |
| lariley | 9/10 | 4844 days | 1% |
| richardp | 10/10 | 4875 days | 1% |
| prasanth03 | 10/10 | 4906 days | 1% |
| EllieW | 10/10 | 4936 days | 1% |
| Terry | 10/10 | 4997 days | 1% |
| Borderland | 10/10 | 5028 days | 1% |
| jimbob | 10/10 | 5028 days | 1% |
| mopheim | 10/10 | 5028 days | 1% |
| Mats Harstedt | 9/10 | 5037 days | 1% |
| KateS | 10/10 | 5057 days | 1% |
| RubberDuck | 10/10 | 5088 days | 1% |
| Red_Hurring | 10/10 | 5088 days | 1% |
| travelpam | 10/10 | 5088 days | 1% |
| barjjake | 9/10 | 5088 days | 1% |
| cindyd | 10/10 | 5119 days | 1% |
| webstersuk | 10/10 | 5119 days | 1% |
| pezalone | 10/10 | 5119 days | 1% |
| WiseOwl | 10/10 | 5119 days | 1% |
| mausandhari | 10/10 | 5119 days | 1% |
| Pauline | 10/10 | 5149 days | 1% |
| JadesWorld | 9/10 | 5149 days | 1% |
| utstarfish | 10/10 | 5149 days | 1% |
| johnco78 | 10/10 | 5149 days | 1% |
| jrwholey | 10/10 | 5180 days | 1% |
| ShawnM | 10/10 | 5180 days | 1% |
| Tarsh | 10/10 | 5180 days | 1% |
| lindahealey | 10/10 | 5180 days | 1% |
| campbell_steven | 10/10 | 5210 days | 1% |
| markrussell | 10/10 | 5210 days | 1% |
| Bayneer | 10/10 | 5210 days | 1% |
| jaspreetsohal86 | 10/10 | 5210 days | 1% |
| kiwiholly | 10/10 | 5210 days | 1% |
| garethd1980 | 10/10 | 5210 days | 1% |
| Mulliano | 10/10 | 5210 days | 1% |
| CathyK | 10/10 | 5241 days | 1% |
| silver | 10/10 | 5241 days | 1% |
| Meyerclan | 10/10 | 5272 days | 1% |
| poetania | 10/10 | 5302 days | 1% |
| southernboy611 | 10/10 | 5302 days | 1% |
| EvilChris | 10/10 | 5333 days | 1% |
| nia427 | 10/10 | 5363 days | 1% |
| Mags620 | 10/10 | 5363 days | 1% |
| deanblackburn | 10/10 | 5363 days | 1% |
| Heatherorchard | 10/10 | 5394 days | 1% |
| BeetleBom | 10/10 | 5394 days | 1% |
| AnnaBain | 10/10 | 5422 days | 1% |
| geezer | 10/10 | 5422 days | 1% |
| Jen | 10/10 | 5422 days | 1% |
| busheybrew | 10/10 | 5422 days | 1% |
| painter47 | 10/10 | 5453 days | 1% |
| ganbji | 9/10 | 5453 days | 1% |
| charles | 10/10 | 5484 days | 1% |
| alanos | 9/10 | 5484 days | 1% |
| teeneelz | 10/10 | 5484 days | 1% |
| Douggie | 7/10 | 5575 days | 1% |
| celticcolleen | 10/10 | 5698 days | 1% |
| MarcyMark | 10/10 | 5728 days | 1% |
| Susiekj | 10/10 | 5759 days | 1% |
| Kirsten | 10/10 | 5787 days | 1% |
| Ravi Chand | 10/10 | 5818 days | 1% |
| Sika | 10/10 | 5818 days | 1% |
| anthony mcclaren | 9/10 | 5818 days | 1% |
| menzel | 10/10 | 5832 days | 1% |
| joannaw | 10/10 | 5834 days | 1% |
| meisterbaumann | 10/10 | 5849 days | 1% |
| Stefanie Micheler | 10/10 | 5860 days | 1% |
| Aussies | 10/10 | 5879 days | 1% |
| Jake Volle | 10/10 | 5879 days | 1% |
| Jess Woods | 10/10 | 5940 days | 1% |
| emmah | 9/10 | 5976 days | 1% |
| Dave Roebuck | 10/10 | 6002 days | 1% |
| steph_m | 9/10 | 6102 days | 1% |
| JasonL | 8/10 | 6105 days | 1% |
| Tanja Kirschmann | 10/10 | 6106 days | 1% |
| MicheyJ | 10/10 | 6108 days | 1% |
| caz | 10/10 | 6129 days | 1% |
| Cilla | 10/10 | 6134 days | 1% |
| Hannah | 10/10 | 6136 days | 1% |
| karlijn schaap | 10/10 | 6213 days | 1% |
| Murray | 10/10 | 6243 days | 1% |
| Jan Burch | 9/10 | 6356 days | 1% |
| zane mirfin | 10/10 | 6412 days | 1% |
| becky | 10/10 | 6440 days | 1% |
| dave | 9/10 | 6468 days | 1% |
| shinylight | 9/10 | 6500 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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
0.38% 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.