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
167 Valid Reviews
The Tongariro River Rafting experience has a total of 168 reviews. There are 167 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 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 | 61 days | 100% |
| Amanda Thomson | 10/10 | 336 days | 94% |
| Peter Little | 10/10 | 365 days | 93% |
| Michaela Liff | 10/10 | 610 days | 79% |
| Kusum | 10/10 | 1067 days | 38% |
| Betty Dunn | 10/10 | 1095 days | 35% |
| Ruth | 10/10 | 1675 days | 6% |
| Gary Koh | 10/10 | 1888 days | 5% |
| Jan | 10/10 | 1918 days | 5% |
| Alison B. | 10/10 | 1918 days | 5% |
| John Olsen | 10/10 | 1949 days | 5% |
| Peter | 10/10 | 2041 days | 5% |
| Ben | 10/10 | 2071 days | 4% |
| Ian | 10/10 | 2132 days | 4% |
| Gary Walker | 10/10 | 2132 days | 4% |
| Rowella Bacwaden | 10/10 | 2163 days | 4% |
| Eileen H | 10/10 | 2222 days | 4% |
| Brad | 10/10 | 2283 days | 4% |
| Jared London | 10/10 | 2314 days | 4% |
| Helen Turner | 10/10 | 2344 days | 4% |
| James | 10/10 | 2375 days | 4% |
| Isabelle_Qc | 10/10 | 2406 days | 4% |
| Laura | 10/10 | 2436 days | 4% |
| ACE Richardson | 10/10 | 2467 days | 4% |
| Thea :-) | 10/10 | 2528 days | 4% |
| William Webb | 10/10 | 2555 days | 4% |
| Katelyn Mills | 10/10 | 2556 days | 4% |
| Mrs Smith | 10/10 | 2556 days | 4% |
| Mel | 10/10 | 2556 days | 4% |
| Wayne Smith | 10/10 | 2556 days | 4% |
| Kim | 10/10 | 2586 days | 3% |
| Songyang Liu | 10/10 | 2586 days | 3% |
| Mark Haydon | 10/10 | 2920 days | 3% |
| Kathryn Sherlock | 10/10 | 3135 days | 2% |
| Cherie Kemp | 10/10 | 3135 days | 2% |
| Renee Kemp | 10/10 | 3135 days | 2% |
| Patrick McIvor | 10/10 | 3257 days | 2% |
| Lengxi | 10/10 | 3284 days | 1% |
| Uschi Pongratz | 10/10 | 3292 days | 1% |
| Jessica Ruhland | 10/10 | 3292 days | 1% |
| Paul | 7/10 | 3297 days | 1% |
| Philip Piel | 8/10 | 3297 days | 1% |
| Chiara | 8/10 | 3297 days | 1% |
| Jess | 10/10 | 3334 days | 1% |
| TashJ | 10/10 | 3348 days | 2% |
| Funny Schutt | 10/10 | 3348 days | 2% |
| Craig McCarthy | 10/10 | 3379 days | 2% |
| Tim K | 10/10 | 3379 days | 2% |
| Jack Shearer | 10/10 | 3501 days | 2% |
| Monika M | 10/10 | 3532 days | 2% |
| Ian Wilmot | 10/10 | 3592 days | 1% |
| Rodger Lamb | 10/10 | 3623 days | 1% |
| Leah Kyllo | 10/10 | 3682 days | 1% |
| Juliet Battersby | 10/10 | 3682 days | 1% |
| Chris C | 10/10 | 3743 days | 1% |
| Jessica | 10/10 | 3835 days | 1% |
| Mike Hollows | 10/10 | 3927 days | 1% |
| Monique Hollows | 10/10 | 3988 days | 1% |
| Thomas Subritzky | 10/10 | 3989 days | 1% |
| hmsteele | 10/10 | 4017 days | 1% |
| andy godfrey | 9/10 | 4048 days | 1% |
| Chris Nisbet | 8/10 | 4048 days | 1% |
| Michelle Sanders | 9/10 | 4079 days | 1% |
| phil costello | 8/10 | 4109 days | 0% |
| Robyn Orchard | 10/10 | 4140 days | 0% |
| Gisele Phillips | 9/10 | 4140 days | 0% |
| E Wall | 10/10 | 4140 days | 0% |
| Julie | 10/10 | 4170 days | 0% |
| Little | 10/10 | 4170 days | 0% |
| Grahame Keast | 10/10 | 4201 days | 0% |
| Linda Bates | 10/10 | 4201 days | 0% |
| Morgan Buckingham | 10/10 | 4201 days | 0% |
| Bertiethebus | 10/10 | 4323 days | 0% |
| Julian Roots | 10/10 | 4354 days | 0% |
| Lynette Nicolson | 10/10 | 4413 days | 1% |
| RENs Rens | 10/10 | 4413 days | 1% |
| CKDNH | 10/10 | 4474 days | 1% |
| mattus | 9/10 | 4474 days | 1% |
| Ken | 10/10 | 4474 days | 1% |
| Kathy27 | 10/10 | 4474 days | 1% |
| ladywithplants | 9/10 | 4535 days | 1% |
| princessliz | 10/10 | 4535 days | 1% |
| lariley | 9/10 | 4535 days | 1% |
| richardp | 10/10 | 4566 days | 1% |
| prasanth03 | 10/10 | 4597 days | 1% |
| EllieW | 10/10 | 4627 days | 1% |
| Terry | 10/10 | 4688 days | 1% |
| Borderland | 10/10 | 4719 days | 1% |
| jimbob | 10/10 | 4719 days | 1% |
| mopheim | 10/10 | 4719 days | 1% |
| Mats Harstedt | 9/10 | 4728 days | 1% |
| KateS | 10/10 | 4748 days | 1% |
| RubberDuck | 10/10 | 4779 days | 1% |
| Red_Hurring | 10/10 | 4779 days | 1% |
| travelpam | 10/10 | 4779 days | 1% |
| barjjake | 9/10 | 4779 days | 1% |
| cindyd | 10/10 | 4810 days | 1% |
| webstersuk | 10/10 | 4810 days | 1% |
| pezalone | 10/10 | 4810 days | 1% |
| WiseOwl | 10/10 | 4810 days | 1% |
| mausandhari | 10/10 | 4810 days | 1% |
| Pauline | 10/10 | 4840 days | 1% |
| JadesWorld | 9/10 | 4840 days | 1% |
| utstarfish | 10/10 | 4840 days | 1% |
| johnco78 | 10/10 | 4840 days | 1% |
| jrwholey | 10/10 | 4871 days | 1% |
| ShawnM | 10/10 | 4871 days | 1% |
| Tarsh | 10/10 | 4871 days | 1% |
| lindahealey | 10/10 | 4871 days | 1% |
| campbell_steven | 10/10 | 4901 days | 1% |
| markrussell | 10/10 | 4901 days | 1% |
| Bayneer | 10/10 | 4901 days | 1% |
| jaspreetsohal86 | 10/10 | 4901 days | 1% |
| kiwiholly | 10/10 | 4901 days | 1% |
| garethd1980 | 10/10 | 4901 days | 1% |
| Mulliano | 10/10 | 4901 days | 1% |
| CathyK | 10/10 | 4932 days | 1% |
| silver | 10/10 | 4932 days | 1% |
| Meyerclan | 10/10 | 4963 days | 1% |
| poetania | 10/10 | 4993 days | 1% |
| southernboy611 | 10/10 | 4993 days | 1% |
| EvilChris | 10/10 | 5024 days | 1% |
| nia427 | 10/10 | 5054 days | 1% |
| Mags620 | 10/10 | 5054 days | 1% |
| deanblackburn | 10/10 | 5054 days | 1% |
| Heatherorchard | 10/10 | 5085 days | 1% |
| BeetleBom | 10/10 | 5085 days | 1% |
| AnnaBain | 10/10 | 5113 days | 1% |
| geezer | 10/10 | 5113 days | 1% |
| Jen | 10/10 | 5113 days | 1% |
| busheybrew | 10/10 | 5113 days | 1% |
| painter47 | 10/10 | 5144 days | 1% |
| ganbji | 9/10 | 5144 days | 1% |
| charles | 10/10 | 5175 days | 1% |
| alanos | 9/10 | 5175 days | 1% |
| teeneelz | 10/10 | 5175 days | 1% |
| Douggie | 7/10 | 5266 days | 1% |
| celticcolleen | 10/10 | 5389 days | 1% |
| MarcyMark | 10/10 | 5419 days | 1% |
| Susiekj | 10/10 | 5450 days | 1% |
| Kirsten | 10/10 | 5478 days | 1% |
| Ravi Chand | 10/10 | 5509 days | 1% |
| Sika | 10/10 | 5509 days | 1% |
| anthony mcclaren | 9/10 | 5509 days | 1% |
| menzel | 10/10 | 5523 days | 1% |
| joannaw | 10/10 | 5525 days | 1% |
| meisterbaumann | 10/10 | 5540 days | 1% |
| Stefanie Micheler | 10/10 | 5551 days | 1% |
| Aussies | 10/10 | 5570 days | 1% |
| Jake Volle | 10/10 | 5570 days | 1% |
| Jess Woods | 10/10 | 5631 days | 1% |
| emmah | 9/10 | 5667 days | 1% |
| Dave Roebuck | 10/10 | 5693 days | 1% |
| steph_m | 9/10 | 5793 days | 1% |
| JasonL | 8/10 | 5796 days | 1% |
| Tanja Kirschmann | 10/10 | 5797 days | 1% |
| MicheyJ | 10/10 | 5799 days | 1% |
| caz | 10/10 | 5820 days | 1% |
| Cilla | 10/10 | 5825 days | 1% |
| Hannah | 10/10 | 5827 days | 1% |
| karlijn schaap | 10/10 | 5904 days | 1% |
| Murray | 10/10 | 5934 days | 1% |
| Jan Burch | 9/10 | 6047 days | 1% |
| zane mirfin | 10/10 | 6103 days | 1% |
| becky | 10/10 | 6131 days | 1% |
| dave | 9/10 | 6159 days | 1% |
| shinylight | 9/10 | 6191 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
-1.20% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 49 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 58 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 55 | -1.14% |
| 56 | -1.16% |
| 57 | -1.18% |
| 58 | -1.20% |
| 59 | -1.22% |
| 60 | -1.24% |
| 61 | -1.26% |
| … | … |
Balancing Adjustment
0.13% 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.