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.
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Tongariro River Rafting
Valid Reviews
167 Valid Reviews
The Tongariro River Rafting experience has a total of 169 reviews. There are 167 valid reviews that are included when calculating the ranking score and 2 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.
Below is the distribution of ratings for the 167 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 143 |
|
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% |
98.02% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.02% and is based on 167 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 167 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
99.57%
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 |
|---|---|---|---|
| Madonna Thomson | 10/10 | 126 days | 100% |
| Amanda Thomson | 10/10 | 401 days | 92% |
| Peter Little | 10/10 | 430 days | 90% |
| Michaela Liff | 10/10 | 675 days | 75% |
| Kusum | 10/10 | 1132 days | 33% |
| Betty Dunn | 10/10 | 1160 days | 30% |
| Ruth | 10/10 | 1740 days | 5% |
| Gary Koh | 10/10 | 1953 days | 5% |
| Jan | 10/10 | 1983 days | 5% |
| Alison B. | 10/10 | 1983 days | 5% |
| John Olsen | 10/10 | 2014 days | 4% |
| Peter | 10/10 | 2106 days | 4% |
| Ben | 10/10 | 2136 days | 4% |
| Ian | 10/10 | 2197 days | 4% |
| Gary Walker | 10/10 | 2197 days | 4% |
| Rowella Bacwaden | 10/10 | 2228 days | 4% |
| Eileen H | 10/10 | 2287 days | 4% |
| Brad | 10/10 | 2348 days | 4% |
| Jared London | 10/10 | 2379 days | 4% |
| Helen Turner | 10/10 | 2409 days | 4% |
| James | 10/10 | 2440 days | 4% |
| Isabelle_Qc | 10/10 | 2471 days | 4% |
| Laura | 10/10 | 2501 days | 3% |
| ACE Richardson | 10/10 | 2532 days | 3% |
| Thea :-) | 10/10 | 2593 days | 3% |
| William Webb | 10/10 | 2621 days | 3% |
| Katelyn Mills | 10/10 | 2621 days | 3% |
| Mrs Smith | 10/10 | 2621 days | 3% |
| Mel | 10/10 | 2621 days | 3% |
| Wayne Smith | 10/10 | 2621 days | 3% |
| Kim | 10/10 | 2652 days | 3% |
| Songyang Liu | 10/10 | 2652 days | 3% |
| Mark Haydon | 10/10 | 2986 days | 3% |
| Kathryn Sherlock | 10/10 | 3201 days | 2% |
| Cherie Kemp | 10/10 | 3201 days | 2% |
| Renee Kemp | 10/10 | 3201 days | 2% |
| Patrick McIvor | 10/10 | 3323 days | 2% |
| Lengxi | 10/10 | 3349 days | 1% |
| Uschi Pongratz | 10/10 | 3357 days | 1% |
| Jessica Ruhland | 10/10 | 3357 days | 1% |
| Paul | 7/10 | 3362 days | 1% |
| Philip Piel | 8/10 | 3362 days | 1% |
| Chiara | 8/10 | 3362 days | 1% |
| Jess | 10/10 | 3399 days | 1% |
| TashJ | 10/10 | 3414 days | 2% |
| Funny Schutt | 10/10 | 3414 days | 2% |
| Craig McCarthy | 10/10 | 3444 days | 2% |
| Tim K | 10/10 | 3444 days | 2% |
| Jack Shearer | 10/10 | 3567 days | 1% |
| Monika M | 10/10 | 3597 days | 1% |
| Ian Wilmot | 10/10 | 3658 days | 1% |
| Rodger Lamb | 10/10 | 3689 days | 1% |
| Leah Kyllo | 10/10 | 3748 days | 1% |
| Juliet Battersby | 10/10 | 3748 days | 1% |
| Chris C | 10/10 | 3809 days | 1% |
| Jessica | 10/10 | 3901 days | 1% |
| Mike Hollows | 10/10 | 3993 days | 1% |
| Monique Hollows | 10/10 | 4054 days | 0% |
| Thomas Subritzky | 10/10 | 4054 days | 0% |
| hmsteele | 10/10 | 4082 days | 0% |
| andy godfrey | 9/10 | 4113 days | 0% |
| Chris Nisbet | 8/10 | 4113 days | 0% |
| Michelle Sanders | 9/10 | 4144 days | 0% |
| phil costello | 8/10 | 4174 days | 0% |
| Robyn Orchard | 10/10 | 4205 days | 0% |
| Gisele Phillips | 9/10 | 4205 days | 0% |
| E Wall | 10/10 | 4205 days | 0% |
| Julie | 10/10 | 4235 days | 0% |
| Little | 10/10 | 4235 days | 0% |
| Grahame Keast | 10/10 | 4266 days | 0% |
| Linda Bates | 10/10 | 4266 days | 0% |
| Morgan Buckingham | 10/10 | 4266 days | 0% |
| Bertiethebus | 10/10 | 4388 days | 1% |
| Julian Roots | 10/10 | 4419 days | 1% |
| Lynette Nicolson | 10/10 | 4478 days | 1% |
| RENs Rens | 10/10 | 4478 days | 1% |
| CKDNH | 10/10 | 4539 days | 1% |
| mattus | 9/10 | 4539 days | 1% |
| Ken | 10/10 | 4539 days | 1% |
| Kathy27 | 10/10 | 4539 days | 1% |
| ladywithplants | 9/10 | 4600 days | 1% |
| princessliz | 10/10 | 4600 days | 1% |
| lariley | 9/10 | 4600 days | 1% |
| richardp | 10/10 | 4631 days | 1% |
| prasanth03 | 10/10 | 4662 days | 1% |
| EllieW | 10/10 | 4692 days | 1% |
| Terry | 10/10 | 4753 days | 1% |
| Borderland | 10/10 | 4784 days | 1% |
| jimbob | 10/10 | 4784 days | 1% |
| mopheim | 10/10 | 4784 days | 1% |
| Mats Harstedt | 9/10 | 4793 days | 0% |
| KateS | 10/10 | 4813 days | 1% |
| RubberDuck | 10/10 | 4844 days | 1% |
| Red_Hurring | 10/10 | 4844 days | 1% |
| travelpam | 10/10 | 4844 days | 1% |
| barjjake | 9/10 | 4844 days | 1% |
| cindyd | 10/10 | 4875 days | 1% |
| webstersuk | 10/10 | 4875 days | 1% |
| pezalone | 10/10 | 4875 days | 1% |
| WiseOwl | 10/10 | 4875 days | 1% |
| mausandhari | 10/10 | 4875 days | 1% |
| Pauline | 10/10 | 4905 days | 1% |
| JadesWorld | 9/10 | 4905 days | 1% |
| utstarfish | 10/10 | 4905 days | 1% |
| johnco78 | 10/10 | 4905 days | 1% |
| jrwholey | 10/10 | 4936 days | 1% |
| ShawnM | 10/10 | 4936 days | 1% |
| Tarsh | 10/10 | 4936 days | 1% |
| lindahealey | 10/10 | 4936 days | 1% |
| campbell_steven | 10/10 | 4966 days | 1% |
| markrussell | 10/10 | 4966 days | 1% |
| Bayneer | 10/10 | 4966 days | 1% |
| jaspreetsohal86 | 10/10 | 4966 days | 1% |
| kiwiholly | 10/10 | 4966 days | 1% |
| garethd1980 | 10/10 | 4966 days | 1% |
| Mulliano | 10/10 | 4966 days | 1% |
| CathyK | 10/10 | 4997 days | 1% |
| silver | 10/10 | 4997 days | 1% |
| Meyerclan | 10/10 | 5028 days | 1% |
| poetania | 10/10 | 5058 days | 1% |
| southernboy611 | 10/10 | 5058 days | 1% |
| EvilChris | 10/10 | 5089 days | 1% |
| nia427 | 10/10 | 5119 days | 1% |
| Mags620 | 10/10 | 5119 days | 1% |
| deanblackburn | 10/10 | 5119 days | 1% |
| Heatherorchard | 10/10 | 5150 days | 1% |
| BeetleBom | 10/10 | 5150 days | 1% |
| AnnaBain | 10/10 | 5178 days | 1% |
| geezer | 10/10 | 5178 days | 1% |
| Jen | 10/10 | 5178 days | 1% |
| busheybrew | 10/10 | 5178 days | 1% |
| painter47 | 10/10 | 5209 days | 1% |
| ganbji | 9/10 | 5209 days | 1% |
| charles | 10/10 | 5240 days | 1% |
| alanos | 9/10 | 5240 days | 1% |
| teeneelz | 10/10 | 5240 days | 1% |
| Douggie | 7/10 | 5331 days | 1% |
| celticcolleen | 10/10 | 5454 days | 1% |
| MarcyMark | 10/10 | 5484 days | 1% |
| Susiekj | 10/10 | 5515 days | 1% |
| Kirsten | 10/10 | 5543 days | 1% |
| Ravi Chand | 10/10 | 5574 days | 1% |
| Sika | 10/10 | 5574 days | 1% |
| anthony mcclaren | 9/10 | 5574 days | 1% |
| menzel | 10/10 | 5588 days | 0% |
| joannaw | 10/10 | 5590 days | 0% |
| meisterbaumann | 10/10 | 5605 days | 1% |
| Stefanie Micheler | 10/10 | 5616 days | 0% |
| Aussies | 10/10 | 5635 days | 1% |
| Jake Volle | 10/10 | 5635 days | 1% |
| Jess Woods | 10/10 | 5696 days | 1% |
| emmah | 9/10 | 5732 days | 0% |
| Dave Roebuck | 10/10 | 5758 days | 1% |
| steph_m | 9/10 | 5859 days | 1% |
| JasonL | 8/10 | 5861 days | 0% |
| Tanja Kirschmann | 10/10 | 5863 days | 1% |
| MicheyJ | 10/10 | 5865 days | 1% |
| caz | 10/10 | 5885 days | 1% |
| Cilla | 10/10 | 5891 days | 0% |
| Hannah | 10/10 | 5893 days | 1% |
| karlijn schaap | 10/10 | 5970 days | 1% |
| Murray | 10/10 | 6000 days | 1% |
| Jan Burch | 9/10 | 6112 days | 1% |
| zane mirfin | 10/10 | 6169 days | 1% |
| becky | 10/10 | 6196 days | 1% |
| dave | 9/10 | 6224 days | 1% |
| shinylight | 9/10 | 6256 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
-2.26% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 61 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 124 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 121 | -2.20% |
| 122 | -2.22% |
| 123 | -2.24% |
| 124 | -2.26% |
| 125 | -2.28% |
| 126 | -2.30% |
| 127 | -2.31% |
| … | … |
Balancing Adjustment
0.22% 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
98%
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.