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 | 258 days | 100% |
| Cody | 10/10 | 289 days | 99% |
| Madonna Thomson | 10/10 | 379 days | 95% |
| Amanda Thomson | 10/10 | 654 days | 79% |
| Peter Little | 10/10 | 683 days | 76% |
| Michaela Liff | 10/10 | 928 days | 53% |
| Kusum | 10/10 | 1385 days | 17% |
| Betty Dunn | 10/10 | 1413 days | 15% |
| Ruth | 10/10 | 1993 days | 5% |
| Gary Koh | 10/10 | 2206 days | 4% |
| Jan | 10/10 | 2236 days | 4% |
| Alison B. | 10/10 | 2236 days | 4% |
| John Olsen | 10/10 | 2267 days | 4% |
| Peter | 10/10 | 2359 days | 4% |
| Ben | 10/10 | 2389 days | 4% |
| Ian | 10/10 | 2450 days | 4% |
| Gary Walker | 10/10 | 2450 days | 4% |
| Rowella Bacwaden | 10/10 | 2481 days | 4% |
| Eileen H | 10/10 | 2540 days | 4% |
| Brad | 10/10 | 2601 days | 4% |
| Jared London | 10/10 | 2632 days | 4% |
| Helen Turner | 10/10 | 2662 days | 3% |
| James | 10/10 | 2693 days | 3% |
| Isabelle_Qc | 10/10 | 2724 days | 3% |
| Laura | 10/10 | 2754 days | 3% |
| ACE Richardson | 10/10 | 2785 days | 3% |
| Thea :-) | 10/10 | 2846 days | 3% |
| William Webb | 10/10 | 2873 days | 3% |
| Katelyn Mills | 10/10 | 2874 days | 3% |
| Mrs Smith | 10/10 | 2874 days | 3% |
| Mel | 10/10 | 2874 days | 3% |
| Wayne Smith | 10/10 | 2874 days | 3% |
| Kim | 10/10 | 2904 days | 3% |
| Songyang Liu | 10/10 | 2904 days | 3% |
| Mark Haydon | 10/10 | 3238 days | 2% |
| Kathryn Sherlock | 10/10 | 3453 days | 2% |
| Cherie Kemp | 10/10 | 3453 days | 2% |
| Renee Kemp | 10/10 | 3453 days | 2% |
| Patrick McIvor | 10/10 | 3575 days | 2% |
| Lengxi | 10/10 | 3602 days | 1% |
| Uschi Pongratz | 10/10 | 3610 days | 1% |
| Jessica Ruhland | 10/10 | 3610 days | 1% |
| Paul | 7/10 | 3615 days | 1% |
| Philip Piel | 8/10 | 3615 days | 1% |
| Chiara | 8/10 | 3615 days | 1% |
| Jess | 10/10 | 3652 days | 1% |
| TashJ | 10/10 | 3666 days | 1% |
| Funny Schutt | 10/10 | 3666 days | 1% |
| Craig McCarthy | 10/10 | 3697 days | 1% |
| Tim K | 10/10 | 3697 days | 1% |
| Jack Shearer | 10/10 | 3819 days | 1% |
| Monika M | 10/10 | 3850 days | 1% |
| Ian Wilmot | 10/10 | 3910 days | 1% |
| Rodger Lamb | 10/10 | 3941 days | 1% |
| Leah Kyllo | 10/10 | 4000 days | 1% |
| Juliet Battersby | 10/10 | 4000 days | 1% |
| Chris C | 10/10 | 4061 days | 1% |
| Jessica | 10/10 | 4153 days | 0% |
| Mike Hollows | 10/10 | 4245 days | 0% |
| Monique Hollows | 10/10 | 4306 days | 0% |
| Thomas Subritzky | 10/10 | 4307 days | 0% |
| hmsteele | 10/10 | 4335 days | 0% |
| andy godfrey | 9/10 | 4366 days | 0% |
| Chris Nisbet | 8/10 | 4366 days | 0% |
| Michelle Sanders | 9/10 | 4397 days | 1% |
| phil costello | 8/10 | 4427 days | 1% |
| Robyn Orchard | 10/10 | 4458 days | 1% |
| Gisele Phillips | 9/10 | 4458 days | 1% |
| E Wall | 10/10 | 4458 days | 1% |
| Julie | 10/10 | 4488 days | 1% |
| Little | 10/10 | 4488 days | 1% |
| Grahame Keast | 10/10 | 4519 days | 1% |
| Linda Bates | 10/10 | 4519 days | 1% |
| Morgan Buckingham | 10/10 | 4519 days | 1% |
| Bertiethebus | 10/10 | 4641 days | 1% |
| Julian Roots | 10/10 | 4672 days | 1% |
| Lynette Nicolson | 10/10 | 4731 days | 1% |
| RENs Rens | 10/10 | 4731 days | 1% |
| CKDNH | 10/10 | 4792 days | 1% |
| mattus | 9/10 | 4792 days | 1% |
| Ken | 10/10 | 4792 days | 1% |
| Kathy27 | 10/10 | 4792 days | 1% |
| ladywithplants | 9/10 | 4853 days | 1% |
| princessliz | 10/10 | 4853 days | 1% |
| lariley | 9/10 | 4853 days | 1% |
| richardp | 10/10 | 4884 days | 1% |
| prasanth03 | 10/10 | 4915 days | 1% |
| EllieW | 10/10 | 4945 days | 1% |
| Terry | 10/10 | 5006 days | 1% |
| Borderland | 10/10 | 5037 days | 1% |
| jimbob | 10/10 | 5037 days | 1% |
| mopheim | 10/10 | 5037 days | 1% |
| Mats Harstedt | 9/10 | 5046 days | 1% |
| KateS | 10/10 | 5066 days | 1% |
| RubberDuck | 10/10 | 5097 days | 1% |
| Red_Hurring | 10/10 | 5097 days | 1% |
| travelpam | 10/10 | 5097 days | 1% |
| barjjake | 9/10 | 5097 days | 1% |
| cindyd | 10/10 | 5128 days | 1% |
| webstersuk | 10/10 | 5128 days | 1% |
| pezalone | 10/10 | 5128 days | 1% |
| WiseOwl | 10/10 | 5128 days | 1% |
| mausandhari | 10/10 | 5128 days | 1% |
| Pauline | 10/10 | 5158 days | 1% |
| JadesWorld | 9/10 | 5158 days | 1% |
| utstarfish | 10/10 | 5158 days | 1% |
| johnco78 | 10/10 | 5158 days | 1% |
| jrwholey | 10/10 | 5189 days | 1% |
| ShawnM | 10/10 | 5189 days | 1% |
| Tarsh | 10/10 | 5189 days | 1% |
| lindahealey | 10/10 | 5189 days | 1% |
| campbell_steven | 10/10 | 5219 days | 1% |
| markrussell | 10/10 | 5219 days | 1% |
| Bayneer | 10/10 | 5219 days | 1% |
| jaspreetsohal86 | 10/10 | 5219 days | 1% |
| kiwiholly | 10/10 | 5219 days | 1% |
| garethd1980 | 10/10 | 5219 days | 1% |
| Mulliano | 10/10 | 5219 days | 1% |
| CathyK | 10/10 | 5250 days | 1% |
| silver | 10/10 | 5250 days | 1% |
| Meyerclan | 10/10 | 5281 days | 1% |
| poetania | 10/10 | 5311 days | 1% |
| southernboy611 | 10/10 | 5311 days | 1% |
| EvilChris | 10/10 | 5342 days | 1% |
| nia427 | 10/10 | 5372 days | 1% |
| Mags620 | 10/10 | 5372 days | 1% |
| deanblackburn | 10/10 | 5372 days | 1% |
| Heatherorchard | 10/10 | 5403 days | 1% |
| BeetleBom | 10/10 | 5403 days | 1% |
| AnnaBain | 10/10 | 5431 days | 1% |
| geezer | 10/10 | 5431 days | 1% |
| Jen | 10/10 | 5431 days | 1% |
| busheybrew | 10/10 | 5431 days | 1% |
| painter47 | 10/10 | 5462 days | 1% |
| ganbji | 9/10 | 5462 days | 1% |
| charles | 10/10 | 5493 days | 1% |
| alanos | 9/10 | 5493 days | 1% |
| teeneelz | 10/10 | 5493 days | 1% |
| Douggie | 7/10 | 5584 days | 1% |
| celticcolleen | 10/10 | 5707 days | 1% |
| MarcyMark | 10/10 | 5737 days | 1% |
| Susiekj | 10/10 | 5768 days | 1% |
| Kirsten | 10/10 | 5796 days | 1% |
| Ravi Chand | 10/10 | 5827 days | 1% |
| Sika | 10/10 | 5827 days | 1% |
| anthony mcclaren | 9/10 | 5827 days | 1% |
| menzel | 10/10 | 5841 days | 1% |
| joannaw | 10/10 | 5843 days | 1% |
| meisterbaumann | 10/10 | 5858 days | 1% |
| Stefanie Micheler | 10/10 | 5869 days | 1% |
| Aussies | 10/10 | 5888 days | 1% |
| Jake Volle | 10/10 | 5888 days | 1% |
| Jess Woods | 10/10 | 5949 days | 1% |
| emmah | 9/10 | 5985 days | 1% |
| Dave Roebuck | 10/10 | 6011 days | 1% |
| steph_m | 9/10 | 6111 days | 1% |
| JasonL | 8/10 | 6114 days | 1% |
| Tanja Kirschmann | 10/10 | 6115 days | 1% |
| MicheyJ | 10/10 | 6117 days | 1% |
| caz | 10/10 | 6138 days | 1% |
| Cilla | 10/10 | 6143 days | 1% |
| Hannah | 10/10 | 6145 days | 1% |
| karlijn schaap | 10/10 | 6222 days | 1% |
| Murray | 10/10 | 6252 days | 1% |
| Jan Burch | 9/10 | 6365 days | 1% |
| zane mirfin | 10/10 | 6421 days | 1% |
| becky | 10/10 | 6449 days | 1% |
| dave | 9/10 | 6477 days | 1% |
| shinylight | 9/10 | 6509 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
-4.06% 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 | -4.00% |
| 198 | -4.02% |
| 199 | -4.04% |
| 200 | -4.06% |
| 201 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
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.