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 | 251 days | 100% |
| Cody | 10/10 | 282 days | 99% |
| Madonna Thomson | 10/10 | 372 days | 96% |
| Amanda Thomson | 10/10 | 647 days | 79% |
| Peter Little | 10/10 | 676 days | 77% |
| Michaela Liff | 10/10 | 921 days | 54% |
| Kusum | 10/10 | 1378 days | 17% |
| Betty Dunn | 10/10 | 1406 days | 16% |
| Ruth | 10/10 | 1986 days | 5% |
| Gary Koh | 10/10 | 2199 days | 4% |
| Jan | 10/10 | 2229 days | 4% |
| Alison B. | 10/10 | 2229 days | 4% |
| John Olsen | 10/10 | 2260 days | 4% |
| Peter | 10/10 | 2352 days | 4% |
| Ben | 10/10 | 2382 days | 4% |
| Ian | 10/10 | 2443 days | 4% |
| Gary Walker | 10/10 | 2443 days | 4% |
| Rowella Bacwaden | 10/10 | 2474 days | 4% |
| Eileen H | 10/10 | 2533 days | 4% |
| Brad | 10/10 | 2594 days | 4% |
| Jared London | 10/10 | 2625 days | 4% |
| Helen Turner | 10/10 | 2655 days | 3% |
| James | 10/10 | 2686 days | 3% |
| Isabelle_Qc | 10/10 | 2717 days | 3% |
| Laura | 10/10 | 2747 days | 3% |
| ACE Richardson | 10/10 | 2778 days | 3% |
| Thea :-) | 10/10 | 2839 days | 3% |
| William Webb | 10/10 | 2866 days | 3% |
| Katelyn Mills | 10/10 | 2867 days | 3% |
| Mrs Smith | 10/10 | 2867 days | 3% |
| Mel | 10/10 | 2867 days | 3% |
| Wayne Smith | 10/10 | 2867 days | 3% |
| Kim | 10/10 | 2897 days | 3% |
| Songyang Liu | 10/10 | 2897 days | 3% |
| Mark Haydon | 10/10 | 3231 days | 2% |
| Kathryn Sherlock | 10/10 | 3446 days | 2% |
| Cherie Kemp | 10/10 | 3446 days | 2% |
| Renee Kemp | 10/10 | 3446 days | 2% |
| Patrick McIvor | 10/10 | 3568 days | 2% |
| Lengxi | 10/10 | 3595 days | 1% |
| Uschi Pongratz | 10/10 | 3603 days | 1% |
| Jessica Ruhland | 10/10 | 3603 days | 1% |
| Paul | 7/10 | 3608 days | 1% |
| Philip Piel | 8/10 | 3608 days | 1% |
| Chiara | 8/10 | 3608 days | 1% |
| Jess | 10/10 | 3645 days | 1% |
| TashJ | 10/10 | 3659 days | 1% |
| Funny Schutt | 10/10 | 3659 days | 1% |
| Craig McCarthy | 10/10 | 3690 days | 1% |
| Tim K | 10/10 | 3690 days | 1% |
| Jack Shearer | 10/10 | 3812 days | 1% |
| Monika M | 10/10 | 3843 days | 1% |
| Ian Wilmot | 10/10 | 3903 days | 1% |
| Rodger Lamb | 10/10 | 3934 days | 1% |
| Leah Kyllo | 10/10 | 3993 days | 1% |
| Juliet Battersby | 10/10 | 3993 days | 1% |
| Chris C | 10/10 | 4054 days | 1% |
| Jessica | 10/10 | 4146 days | 0% |
| Mike Hollows | 10/10 | 4238 days | 0% |
| Monique Hollows | 10/10 | 4299 days | 0% |
| Thomas Subritzky | 10/10 | 4300 days | 0% |
| hmsteele | 10/10 | 4328 days | 0% |
| andy godfrey | 9/10 | 4359 days | 0% |
| Chris Nisbet | 8/10 | 4359 days | 0% |
| Michelle Sanders | 9/10 | 4390 days | 1% |
| phil costello | 8/10 | 4420 days | 1% |
| Robyn Orchard | 10/10 | 4451 days | 1% |
| Gisele Phillips | 9/10 | 4451 days | 1% |
| E Wall | 10/10 | 4451 days | 1% |
| Julie | 10/10 | 4481 days | 1% |
| Little | 10/10 | 4481 days | 1% |
| Grahame Keast | 10/10 | 4512 days | 1% |
| Linda Bates | 10/10 | 4512 days | 1% |
| Morgan Buckingham | 10/10 | 4512 days | 1% |
| Bertiethebus | 10/10 | 4634 days | 1% |
| Julian Roots | 10/10 | 4665 days | 1% |
| Lynette Nicolson | 10/10 | 4724 days | 1% |
| RENs Rens | 10/10 | 4724 days | 1% |
| CKDNH | 10/10 | 4785 days | 1% |
| mattus | 9/10 | 4785 days | 1% |
| Ken | 10/10 | 4785 days | 1% |
| Kathy27 | 10/10 | 4785 days | 1% |
| ladywithplants | 9/10 | 4846 days | 1% |
| princessliz | 10/10 | 4846 days | 1% |
| lariley | 9/10 | 4846 days | 1% |
| richardp | 10/10 | 4877 days | 1% |
| prasanth03 | 10/10 | 4908 days | 1% |
| EllieW | 10/10 | 4938 days | 1% |
| Terry | 10/10 | 4999 days | 1% |
| Borderland | 10/10 | 5030 days | 1% |
| jimbob | 10/10 | 5030 days | 1% |
| mopheim | 10/10 | 5030 days | 1% |
| Mats Harstedt | 9/10 | 5039 days | 1% |
| KateS | 10/10 | 5059 days | 1% |
| RubberDuck | 10/10 | 5090 days | 1% |
| Red_Hurring | 10/10 | 5090 days | 1% |
| travelpam | 10/10 | 5090 days | 1% |
| barjjake | 9/10 | 5090 days | 1% |
| cindyd | 10/10 | 5121 days | 1% |
| webstersuk | 10/10 | 5121 days | 1% |
| pezalone | 10/10 | 5121 days | 1% |
| WiseOwl | 10/10 | 5121 days | 1% |
| mausandhari | 10/10 | 5121 days | 1% |
| Pauline | 10/10 | 5151 days | 1% |
| JadesWorld | 9/10 | 5151 days | 1% |
| utstarfish | 10/10 | 5151 days | 1% |
| johnco78 | 10/10 | 5151 days | 1% |
| jrwholey | 10/10 | 5182 days | 1% |
| ShawnM | 10/10 | 5182 days | 1% |
| Tarsh | 10/10 | 5182 days | 1% |
| lindahealey | 10/10 | 5182 days | 1% |
| campbell_steven | 10/10 | 5212 days | 1% |
| markrussell | 10/10 | 5212 days | 1% |
| Bayneer | 10/10 | 5212 days | 1% |
| jaspreetsohal86 | 10/10 | 5212 days | 1% |
| kiwiholly | 10/10 | 5212 days | 1% |
| garethd1980 | 10/10 | 5212 days | 1% |
| Mulliano | 10/10 | 5212 days | 1% |
| CathyK | 10/10 | 5243 days | 1% |
| silver | 10/10 | 5243 days | 1% |
| Meyerclan | 10/10 | 5274 days | 1% |
| poetania | 10/10 | 5304 days | 1% |
| southernboy611 | 10/10 | 5304 days | 1% |
| EvilChris | 10/10 | 5335 days | 1% |
| nia427 | 10/10 | 5365 days | 1% |
| Mags620 | 10/10 | 5365 days | 1% |
| deanblackburn | 10/10 | 5365 days | 1% |
| Heatherorchard | 10/10 | 5396 days | 1% |
| BeetleBom | 10/10 | 5396 days | 1% |
| AnnaBain | 10/10 | 5424 days | 1% |
| geezer | 10/10 | 5424 days | 1% |
| Jen | 10/10 | 5424 days | 1% |
| busheybrew | 10/10 | 5424 days | 1% |
| painter47 | 10/10 | 5455 days | 1% |
| ganbji | 9/10 | 5455 days | 1% |
| charles | 10/10 | 5486 days | 1% |
| alanos | 9/10 | 5486 days | 1% |
| teeneelz | 10/10 | 5486 days | 1% |
| Douggie | 7/10 | 5577 days | 1% |
| celticcolleen | 10/10 | 5700 days | 1% |
| MarcyMark | 10/10 | 5730 days | 1% |
| Susiekj | 10/10 | 5761 days | 1% |
| Kirsten | 10/10 | 5789 days | 1% |
| Ravi Chand | 10/10 | 5820 days | 1% |
| Sika | 10/10 | 5820 days | 1% |
| anthony mcclaren | 9/10 | 5820 days | 1% |
| menzel | 10/10 | 5834 days | 1% |
| joannaw | 10/10 | 5836 days | 1% |
| meisterbaumann | 10/10 | 5851 days | 1% |
| Stefanie Micheler | 10/10 | 5862 days | 1% |
| Aussies | 10/10 | 5881 days | 1% |
| Jake Volle | 10/10 | 5881 days | 1% |
| Jess Woods | 10/10 | 5942 days | 1% |
| emmah | 9/10 | 5978 days | 1% |
| Dave Roebuck | 10/10 | 6004 days | 1% |
| steph_m | 9/10 | 6104 days | 1% |
| JasonL | 8/10 | 6107 days | 1% |
| Tanja Kirschmann | 10/10 | 6108 days | 1% |
| MicheyJ | 10/10 | 6110 days | 1% |
| caz | 10/10 | 6131 days | 1% |
| Cilla | 10/10 | 6136 days | 1% |
| Hannah | 10/10 | 6138 days | 1% |
| karlijn schaap | 10/10 | 6215 days | 1% |
| Murray | 10/10 | 6245 days | 1% |
| Jan Burch | 9/10 | 6358 days | 1% |
| zane mirfin | 10/10 | 6414 days | 1% |
| becky | 10/10 | 6442 days | 1% |
| dave | 9/10 | 6470 days | 1% |
| shinylight | 9/10 | 6502 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.