G'day, 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
99.67%
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 | 38 days | 100% |
| Lynda B | 10/10 | 100 days | 100% |
| V Buys | 10/10 | 344 days | 93% |
| Cody | 10/10 | 375 days | 92% |
| Madonna Thomson | 10/10 | 465 days | 88% |
| Amanda Thomson | 10/10 | 740 days | 69% |
| Peter Little | 10/10 | 769 days | 66% |
| Michaela Liff | 10/10 | 1014 days | 43% |
| Kusum | 10/10 | 1471 days | 12% |
| Betty Dunn | 10/10 | 1499 days | 11% |
| Ruth | 10/10 | 2079 days | 4% |
| Gary Koh | 10/10 | 2292 days | 4% |
| Jan | 10/10 | 2322 days | 4% |
| Alison B. | 10/10 | 2322 days | 4% |
| John Olsen | 10/10 | 2353 days | 4% |
| Peter | 10/10 | 2445 days | 4% |
| Ben | 10/10 | 2475 days | 4% |
| Ian | 10/10 | 2536 days | 4% |
| Gary Walker | 10/10 | 2536 days | 4% |
| Rowella Bacwaden | 10/10 | 2567 days | 3% |
| Eileen H | 10/10 | 2626 days | 3% |
| Brad | 10/10 | 2687 days | 3% |
| Jared London | 10/10 | 2718 days | 3% |
| Helen Turner | 10/10 | 2748 days | 3% |
| James | 10/10 | 2779 days | 3% |
| Isabelle_Qc | 10/10 | 2810 days | 3% |
| Laura | 10/10 | 2840 days | 3% |
| ACE Richardson | 10/10 | 2871 days | 3% |
| Thea :-) | 10/10 | 2932 days | 3% |
| William Webb | 10/10 | 2960 days | 3% |
| Katelyn Mills | 10/10 | 2960 days | 3% |
| Mrs Smith | 10/10 | 2960 days | 3% |
| Mel | 10/10 | 2960 days | 3% |
| Wayne Smith | 10/10 | 2960 days | 3% |
| Kim | 10/10 | 2991 days | 3% |
| Songyang Liu | 10/10 | 2991 days | 3% |
| Mark Haydon | 10/10 | 3325 days | 2% |
| Kathryn Sherlock | 10/10 | 3540 days | 2% |
| Cherie Kemp | 10/10 | 3540 days | 2% |
| Renee Kemp | 10/10 | 3540 days | 2% |
| Patrick McIvor | 10/10 | 3662 days | 1% |
| Lengxi | 10/10 | 3688 days | 1% |
| Uschi Pongratz | 10/10 | 3696 days | 1% |
| Jessica Ruhland | 10/10 | 3696 days | 1% |
| Paul | 7/10 | 3701 days | 1% |
| Philip Piel | 8/10 | 3701 days | 1% |
| Chiara | 8/10 | 3701 days | 1% |
| Jess | 10/10 | 3738 days | 1% |
| TashJ | 10/10 | 3753 days | 1% |
| Funny Schutt | 10/10 | 3753 days | 1% |
| Craig McCarthy | 10/10 | 3783 days | 1% |
| Tim K | 10/10 | 3783 days | 1% |
| Jack Shearer | 10/10 | 3906 days | 1% |
| Monika M | 10/10 | 3936 days | 1% |
| Ian Wilmot | 10/10 | 3997 days | 1% |
| Rodger Lamb | 10/10 | 4028 days | 1% |
| Leah Kyllo | 10/10 | 4087 days | 0% |
| Juliet Battersby | 10/10 | 4087 days | 0% |
| Chris C | 10/10 | 4148 days | 0% |
| Jessica | 10/10 | 4240 days | 0% |
| Mike Hollows | 10/10 | 4332 days | 0% |
| Monique Hollows | 10/10 | 4393 days | 1% |
| Thomas Subritzky | 10/10 | 4393 days | 1% |
| hmsteele | 10/10 | 4421 days | 1% |
| andy godfrey | 9/10 | 4452 days | 1% |
| Chris Nisbet | 8/10 | 4452 days | 1% |
| Michelle Sanders | 9/10 | 4483 days | 1% |
| phil costello | 8/10 | 4513 days | 1% |
| Robyn Orchard | 10/10 | 4544 days | 1% |
| Gisele Phillips | 9/10 | 4544 days | 1% |
| E Wall | 10/10 | 4544 days | 1% |
| Julie | 10/10 | 4574 days | 1% |
| Little | 10/10 | 4574 days | 1% |
| Grahame Keast | 10/10 | 4605 days | 1% |
| Linda Bates | 10/10 | 4605 days | 1% |
| Morgan Buckingham | 10/10 | 4605 days | 1% |
| Bertiethebus | 10/10 | 4727 days | 1% |
| Julian Roots | 10/10 | 4758 days | 1% |
| Lynette Nicolson | 10/10 | 4817 days | 1% |
| RENs Rens | 10/10 | 4817 days | 1% |
| CKDNH | 10/10 | 4878 days | 1% |
| mattus | 9/10 | 4878 days | 1% |
| Ken | 10/10 | 4878 days | 1% |
| Kathy27 | 10/10 | 4878 days | 1% |
| ladywithplants | 9/10 | 4939 days | 1% |
| princessliz | 10/10 | 4939 days | 1% |
| lariley | 9/10 | 4939 days | 1% |
| richardp | 10/10 | 4970 days | 1% |
| prasanth03 | 10/10 | 5001 days | 1% |
| EllieW | 10/10 | 5031 days | 1% |
| Terry | 10/10 | 5092 days | 1% |
| Borderland | 10/10 | 5123 days | 1% |
| jimbob | 10/10 | 5123 days | 1% |
| mopheim | 10/10 | 5123 days | 1% |
| Mats Harstedt | 9/10 | 5132 days | 1% |
| KateS | 10/10 | 5152 days | 1% |
| RubberDuck | 10/10 | 5183 days | 1% |
| Red_Hurring | 10/10 | 5183 days | 1% |
| travelpam | 10/10 | 5183 days | 1% |
| barjjake | 9/10 | 5183 days | 1% |
| cindyd | 10/10 | 5214 days | 1% |
| webstersuk | 10/10 | 5214 days | 1% |
| pezalone | 10/10 | 5214 days | 1% |
| WiseOwl | 10/10 | 5214 days | 1% |
| mausandhari | 10/10 | 5214 days | 1% |
| Pauline | 10/10 | 5244 days | 1% |
| JadesWorld | 9/10 | 5244 days | 1% |
| utstarfish | 10/10 | 5244 days | 1% |
| johnco78 | 10/10 | 5244 days | 1% |
| jrwholey | 10/10 | 5275 days | 1% |
| ShawnM | 10/10 | 5275 days | 1% |
| Tarsh | 10/10 | 5275 days | 1% |
| lindahealey | 10/10 | 5275 days | 1% |
| campbell_steven | 10/10 | 5305 days | 1% |
| markrussell | 10/10 | 5305 days | 1% |
| Bayneer | 10/10 | 5305 days | 1% |
| jaspreetsohal86 | 10/10 | 5305 days | 1% |
| kiwiholly | 10/10 | 5305 days | 1% |
| garethd1980 | 10/10 | 5305 days | 1% |
| Mulliano | 10/10 | 5305 days | 1% |
| CathyK | 10/10 | 5336 days | 1% |
| silver | 10/10 | 5336 days | 1% |
| Meyerclan | 10/10 | 5367 days | 1% |
| poetania | 10/10 | 5397 days | 1% |
| southernboy611 | 10/10 | 5397 days | 1% |
| EvilChris | 10/10 | 5428 days | 1% |
| nia427 | 10/10 | 5458 days | 1% |
| Mags620 | 10/10 | 5458 days | 1% |
| deanblackburn | 10/10 | 5458 days | 1% |
| Heatherorchard | 10/10 | 5489 days | 1% |
| BeetleBom | 10/10 | 5489 days | 1% |
| AnnaBain | 10/10 | 5517 days | 1% |
| geezer | 10/10 | 5517 days | 1% |
| Jen | 10/10 | 5517 days | 1% |
| busheybrew | 10/10 | 5517 days | 1% |
| painter47 | 10/10 | 5548 days | 1% |
| ganbji | 9/10 | 5548 days | 1% |
| charles | 10/10 | 5579 days | 1% |
| alanos | 9/10 | 5579 days | 1% |
| teeneelz | 10/10 | 5579 days | 1% |
| Douggie | 7/10 | 5670 days | 1% |
| celticcolleen | 10/10 | 5793 days | 1% |
| MarcyMark | 10/10 | 5823 days | 1% |
| Susiekj | 10/10 | 5854 days | 1% |
| Kirsten | 10/10 | 5882 days | 1% |
| Ravi Chand | 10/10 | 5913 days | 1% |
| Sika | 10/10 | 5913 days | 1% |
| anthony mcclaren | 9/10 | 5913 days | 1% |
| menzel | 10/10 | 5927 days | 1% |
| joannaw | 10/10 | 5929 days | 1% |
| meisterbaumann | 10/10 | 5944 days | 1% |
| Stefanie Micheler | 10/10 | 5955 days | 1% |
| Aussies | 10/10 | 5974 days | 1% |
| Jake Volle | 10/10 | 5974 days | 1% |
| Jess Woods | 10/10 | 6035 days | 1% |
| emmah | 9/10 | 6071 days | 1% |
| Dave Roebuck | 10/10 | 6097 days | 1% |
| steph_m | 9/10 | 6198 days | 1% |
| JasonL | 8/10 | 6200 days | 0% |
| Tanja Kirschmann | 10/10 | 6202 days | 1% |
| MicheyJ | 10/10 | 6204 days | 1% |
| caz | 10/10 | 6224 days | 1% |
| Cilla | 10/10 | 6230 days | 1% |
| Hannah | 10/10 | 6232 days | 1% |
| karlijn schaap | 10/10 | 6309 days | 1% |
| Murray | 10/10 | 6339 days | 1% |
| Jan Burch | 9/10 | 6451 days | 1% |
| zane mirfin | 10/10 | 6508 days | 1% |
| becky | 10/10 | 6535 days | 1% |
| dave | 9/10 | 6563 days | 1% |
| shinylight | 9/10 | 6595 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
-0.30% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 15 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 12 | -0.24% |
| 13 | -0.26% |
| 14 | -0.28% |
| 15 | -0.30% |
| 16 | -0.32% |
| 17 | -0.34% |
| 18 | -0.36% |
| … | … |
Balancing Adjustment
0.05% 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
99%
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.