Hi, 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 | 248 days | 100% |
| Cody | 10/10 | 279 days | 99% |
| Madonna Thomson | 10/10 | 369 days | 96% |
| Amanda Thomson | 10/10 | 644 days | 79% |
| Peter Little | 10/10 | 673 days | 77% |
| Michaela Liff | 10/10 | 918 days | 54% |
| Kusum | 10/10 | 1375 days | 17% |
| Betty Dunn | 10/10 | 1403 days | 16% |
| Ruth | 10/10 | 1983 days | 5% |
| Gary Koh | 10/10 | 2196 days | 4% |
| Jan | 10/10 | 2226 days | 4% |
| Alison B. | 10/10 | 2226 days | 4% |
| John Olsen | 10/10 | 2257 days | 4% |
| Peter | 10/10 | 2349 days | 4% |
| Ben | 10/10 | 2379 days | 4% |
| Ian | 10/10 | 2440 days | 4% |
| Gary Walker | 10/10 | 2440 days | 4% |
| Rowella Bacwaden | 10/10 | 2471 days | 4% |
| Eileen H | 10/10 | 2530 days | 4% |
| Brad | 10/10 | 2591 days | 4% |
| Jared London | 10/10 | 2622 days | 4% |
| Helen Turner | 10/10 | 2652 days | 3% |
| James | 10/10 | 2683 days | 3% |
| Isabelle_Qc | 10/10 | 2714 days | 3% |
| Laura | 10/10 | 2744 days | 3% |
| ACE Richardson | 10/10 | 2775 days | 3% |
| Thea :-) | 10/10 | 2836 days | 3% |
| William Webb | 10/10 | 2864 days | 3% |
| Katelyn Mills | 10/10 | 2864 days | 3% |
| Mrs Smith | 10/10 | 2864 days | 3% |
| Mel | 10/10 | 2864 days | 3% |
| Wayne Smith | 10/10 | 2864 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 | 3592 days | 1% |
| Uschi Pongratz | 10/10 | 3600 days | 1% |
| Jessica Ruhland | 10/10 | 3600 days | 1% |
| Paul | 7/10 | 3605 days | 1% |
| Philip Piel | 8/10 | 3605 days | 1% |
| Chiara | 8/10 | 3605 days | 1% |
| Jess | 10/10 | 3642 days | 1% |
| TashJ | 10/10 | 3657 days | 1% |
| Funny Schutt | 10/10 | 3657 days | 1% |
| Craig McCarthy | 10/10 | 3687 days | 1% |
| Tim K | 10/10 | 3687 days | 1% |
| Jack Shearer | 10/10 | 3810 days | 1% |
| Monika M | 10/10 | 3840 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 | 4297 days | 0% |
| hmsteele | 10/10 | 4325 days | 0% |
| andy godfrey | 9/10 | 4356 days | 0% |
| Chris Nisbet | 8/10 | 4356 days | 0% |
| Michelle Sanders | 9/10 | 4387 days | 1% |
| phil costello | 8/10 | 4417 days | 1% |
| Robyn Orchard | 10/10 | 4448 days | 1% |
| Gisele Phillips | 9/10 | 4448 days | 1% |
| E Wall | 10/10 | 4448 days | 1% |
| Julie | 10/10 | 4478 days | 1% |
| Little | 10/10 | 4478 days | 1% |
| Grahame Keast | 10/10 | 4509 days | 1% |
| Linda Bates | 10/10 | 4509 days | 1% |
| Morgan Buckingham | 10/10 | 4509 days | 1% |
| Bertiethebus | 10/10 | 4631 days | 1% |
| Julian Roots | 10/10 | 4662 days | 1% |
| Lynette Nicolson | 10/10 | 4721 days | 1% |
| RENs Rens | 10/10 | 4721 days | 1% |
| CKDNH | 10/10 | 4782 days | 1% |
| mattus | 9/10 | 4782 days | 1% |
| Ken | 10/10 | 4782 days | 1% |
| Kathy27 | 10/10 | 4782 days | 1% |
| ladywithplants | 9/10 | 4843 days | 1% |
| princessliz | 10/10 | 4843 days | 1% |
| lariley | 9/10 | 4843 days | 1% |
| richardp | 10/10 | 4874 days | 1% |
| prasanth03 | 10/10 | 4905 days | 1% |
| EllieW | 10/10 | 4935 days | 1% |
| Terry | 10/10 | 4996 days | 1% |
| Borderland | 10/10 | 5027 days | 1% |
| jimbob | 10/10 | 5027 days | 1% |
| mopheim | 10/10 | 5027 days | 1% |
| Mats Harstedt | 9/10 | 5036 days | 1% |
| KateS | 10/10 | 5056 days | 1% |
| RubberDuck | 10/10 | 5087 days | 1% |
| Red_Hurring | 10/10 | 5087 days | 1% |
| travelpam | 10/10 | 5087 days | 1% |
| barjjake | 9/10 | 5087 days | 1% |
| cindyd | 10/10 | 5118 days | 1% |
| webstersuk | 10/10 | 5118 days | 1% |
| pezalone | 10/10 | 5118 days | 1% |
| WiseOwl | 10/10 | 5118 days | 1% |
| mausandhari | 10/10 | 5118 days | 1% |
| Pauline | 10/10 | 5148 days | 1% |
| JadesWorld | 9/10 | 5148 days | 1% |
| utstarfish | 10/10 | 5148 days | 1% |
| johnco78 | 10/10 | 5148 days | 1% |
| jrwholey | 10/10 | 5179 days | 1% |
| ShawnM | 10/10 | 5179 days | 1% |
| Tarsh | 10/10 | 5179 days | 1% |
| lindahealey | 10/10 | 5179 days | 1% |
| campbell_steven | 10/10 | 5209 days | 1% |
| markrussell | 10/10 | 5209 days | 1% |
| Bayneer | 10/10 | 5209 days | 1% |
| jaspreetsohal86 | 10/10 | 5209 days | 1% |
| kiwiholly | 10/10 | 5209 days | 1% |
| garethd1980 | 10/10 | 5209 days | 1% |
| Mulliano | 10/10 | 5209 days | 1% |
| CathyK | 10/10 | 5240 days | 1% |
| silver | 10/10 | 5240 days | 1% |
| Meyerclan | 10/10 | 5271 days | 1% |
| poetania | 10/10 | 5301 days | 1% |
| southernboy611 | 10/10 | 5301 days | 1% |
| EvilChris | 10/10 | 5332 days | 1% |
| nia427 | 10/10 | 5362 days | 1% |
| Mags620 | 10/10 | 5362 days | 1% |
| deanblackburn | 10/10 | 5362 days | 1% |
| Heatherorchard | 10/10 | 5393 days | 1% |
| BeetleBom | 10/10 | 5393 days | 1% |
| AnnaBain | 10/10 | 5421 days | 1% |
| geezer | 10/10 | 5421 days | 1% |
| Jen | 10/10 | 5421 days | 1% |
| busheybrew | 10/10 | 5421 days | 1% |
| painter47 | 10/10 | 5452 days | 1% |
| ganbji | 9/10 | 5452 days | 1% |
| charles | 10/10 | 5483 days | 1% |
| alanos | 9/10 | 5483 days | 1% |
| teeneelz | 10/10 | 5483 days | 1% |
| Douggie | 7/10 | 5574 days | 1% |
| celticcolleen | 10/10 | 5697 days | 1% |
| MarcyMark | 10/10 | 5727 days | 1% |
| Susiekj | 10/10 | 5758 days | 1% |
| Kirsten | 10/10 | 5786 days | 1% |
| Ravi Chand | 10/10 | 5817 days | 1% |
| Sika | 10/10 | 5817 days | 1% |
| anthony mcclaren | 9/10 | 5817 days | 1% |
| menzel | 10/10 | 5831 days | 1% |
| joannaw | 10/10 | 5833 days | 1% |
| meisterbaumann | 10/10 | 5848 days | 1% |
| Stefanie Micheler | 10/10 | 5859 days | 1% |
| Aussies | 10/10 | 5878 days | 1% |
| Jake Volle | 10/10 | 5878 days | 1% |
| Jess Woods | 10/10 | 5939 days | 1% |
| emmah | 9/10 | 5975 days | 1% |
| Dave Roebuck | 10/10 | 6001 days | 1% |
| steph_m | 9/10 | 6101 days | 1% |
| JasonL | 8/10 | 6104 days | 1% |
| Tanja Kirschmann | 10/10 | 6106 days | 1% |
| MicheyJ | 10/10 | 6107 days | 1% |
| caz | 10/10 | 6128 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 | 6355 days | 1% |
| zane mirfin | 10/10 | 6411 days | 1% |
| becky | 10/10 | 6439 days | 1% |
| dave | 9/10 | 6467 days | 1% |
| shinylight | 9/10 | 6499 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.