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.
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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 | 124 days | 100% |
| Amanda Thomson | 10/10 | 399 days | 92% |
| Peter Little | 10/10 | 428 days | 90% |
| Michaela Liff | 10/10 | 673 days | 75% |
| Kusum | 10/10 | 1130 days | 33% |
| Betty Dunn | 10/10 | 1158 days | 30% |
| Ruth | 10/10 | 1738 days | 5% |
| Gary Koh | 10/10 | 1951 days | 5% |
| Jan | 10/10 | 1981 days | 5% |
| Alison B. | 10/10 | 1981 days | 5% |
| John Olsen | 10/10 | 2012 days | 4% |
| Peter | 10/10 | 2104 days | 4% |
| Ben | 10/10 | 2134 days | 4% |
| Ian | 10/10 | 2195 days | 4% |
| Gary Walker | 10/10 | 2195 days | 4% |
| Rowella Bacwaden | 10/10 | 2226 days | 4% |
| Eileen H | 10/10 | 2285 days | 4% |
| Brad | 10/10 | 2346 days | 4% |
| Jared London | 10/10 | 2377 days | 4% |
| Helen Turner | 10/10 | 2407 days | 4% |
| James | 10/10 | 2438 days | 4% |
| Isabelle_Qc | 10/10 | 2469 days | 4% |
| Laura | 10/10 | 2499 days | 3% |
| ACE Richardson | 10/10 | 2530 days | 3% |
| Thea :-) | 10/10 | 2591 days | 3% |
| William Webb | 10/10 | 2618 days | 3% |
| Katelyn Mills | 10/10 | 2619 days | 3% |
| Mrs Smith | 10/10 | 2619 days | 3% |
| Mel | 10/10 | 2619 days | 3% |
| Wayne Smith | 10/10 | 2619 days | 3% |
| Kim | 10/10 | 2649 days | 3% |
| Songyang Liu | 10/10 | 2649 days | 3% |
| Mark Haydon | 10/10 | 2983 days | 3% |
| Kathryn Sherlock | 10/10 | 3198 days | 2% |
| Cherie Kemp | 10/10 | 3198 days | 2% |
| Renee Kemp | 10/10 | 3198 days | 2% |
| Patrick McIvor | 10/10 | 3320 days | 2% |
| Lengxi | 10/10 | 3347 days | 1% |
| Uschi Pongratz | 10/10 | 3355 days | 1% |
| Jessica Ruhland | 10/10 | 3355 days | 1% |
| Paul | 7/10 | 3360 days | 1% |
| Philip Piel | 8/10 | 3360 days | 1% |
| Chiara | 8/10 | 3360 days | 1% |
| Jess | 10/10 | 3397 days | 1% |
| TashJ | 10/10 | 3411 days | 2% |
| Funny Schutt | 10/10 | 3411 days | 2% |
| Craig McCarthy | 10/10 | 3442 days | 2% |
| Tim K | 10/10 | 3442 days | 2% |
| Jack Shearer | 10/10 | 3564 days | 1% |
| Monika M | 10/10 | 3595 days | 1% |
| Ian Wilmot | 10/10 | 3655 days | 1% |
| Rodger Lamb | 10/10 | 3686 days | 1% |
| Leah Kyllo | 10/10 | 3745 days | 1% |
| Juliet Battersby | 10/10 | 3745 days | 1% |
| Chris C | 10/10 | 3806 days | 1% |
| Jessica | 10/10 | 3898 days | 1% |
| Mike Hollows | 10/10 | 3990 days | 1% |
| Monique Hollows | 10/10 | 4051 days | 0% |
| Thomas Subritzky | 10/10 | 4052 days | 0% |
| hmsteele | 10/10 | 4080 days | 0% |
| andy godfrey | 9/10 | 4111 days | 0% |
| Chris Nisbet | 8/10 | 4111 days | 0% |
| Michelle Sanders | 9/10 | 4142 days | 0% |
| phil costello | 8/10 | 4172 days | 0% |
| Robyn Orchard | 10/10 | 4203 days | 0% |
| Gisele Phillips | 9/10 | 4203 days | 0% |
| E Wall | 10/10 | 4203 days | 0% |
| Julie | 10/10 | 4233 days | 0% |
| Little | 10/10 | 4233 days | 0% |
| Grahame Keast | 10/10 | 4264 days | 0% |
| Linda Bates | 10/10 | 4264 days | 0% |
| Morgan Buckingham | 10/10 | 4264 days | 0% |
| Bertiethebus | 10/10 | 4386 days | 1% |
| Julian Roots | 10/10 | 4417 days | 1% |
| Lynette Nicolson | 10/10 | 4476 days | 1% |
| RENs Rens | 10/10 | 4476 days | 1% |
| CKDNH | 10/10 | 4537 days | 1% |
| mattus | 9/10 | 4537 days | 1% |
| Ken | 10/10 | 4537 days | 1% |
| Kathy27 | 10/10 | 4537 days | 1% |
| ladywithplants | 9/10 | 4598 days | 1% |
| princessliz | 10/10 | 4598 days | 1% |
| lariley | 9/10 | 4598 days | 1% |
| richardp | 10/10 | 4629 days | 1% |
| prasanth03 | 10/10 | 4660 days | 1% |
| EllieW | 10/10 | 4690 days | 1% |
| Terry | 10/10 | 4751 days | 1% |
| Borderland | 10/10 | 4782 days | 1% |
| jimbob | 10/10 | 4782 days | 1% |
| mopheim | 10/10 | 4782 days | 1% |
| Mats Harstedt | 9/10 | 4791 days | 0% |
| KateS | 10/10 | 4811 days | 1% |
| RubberDuck | 10/10 | 4842 days | 1% |
| Red_Hurring | 10/10 | 4842 days | 1% |
| travelpam | 10/10 | 4842 days | 1% |
| barjjake | 9/10 | 4842 days | 1% |
| cindyd | 10/10 | 4873 days | 1% |
| webstersuk | 10/10 | 4873 days | 1% |
| pezalone | 10/10 | 4873 days | 1% |
| WiseOwl | 10/10 | 4873 days | 1% |
| mausandhari | 10/10 | 4873 days | 1% |
| Pauline | 10/10 | 4903 days | 1% |
| JadesWorld | 9/10 | 4903 days | 1% |
| utstarfish | 10/10 | 4903 days | 1% |
| johnco78 | 10/10 | 4903 days | 1% |
| jrwholey | 10/10 | 4934 days | 1% |
| ShawnM | 10/10 | 4934 days | 1% |
| Tarsh | 10/10 | 4934 days | 1% |
| lindahealey | 10/10 | 4934 days | 1% |
| campbell_steven | 10/10 | 4964 days | 1% |
| markrussell | 10/10 | 4964 days | 1% |
| Bayneer | 10/10 | 4964 days | 1% |
| jaspreetsohal86 | 10/10 | 4964 days | 1% |
| kiwiholly | 10/10 | 4964 days | 1% |
| garethd1980 | 10/10 | 4964 days | 1% |
| Mulliano | 10/10 | 4964 days | 1% |
| CathyK | 10/10 | 4995 days | 1% |
| silver | 10/10 | 4995 days | 1% |
| Meyerclan | 10/10 | 5026 days | 1% |
| poetania | 10/10 | 5056 days | 1% |
| southernboy611 | 10/10 | 5056 days | 1% |
| EvilChris | 10/10 | 5087 days | 1% |
| nia427 | 10/10 | 5117 days | 1% |
| Mags620 | 10/10 | 5117 days | 1% |
| deanblackburn | 10/10 | 5117 days | 1% |
| Heatherorchard | 10/10 | 5148 days | 1% |
| BeetleBom | 10/10 | 5148 days | 1% |
| AnnaBain | 10/10 | 5176 days | 1% |
| geezer | 10/10 | 5176 days | 1% |
| Jen | 10/10 | 5176 days | 1% |
| busheybrew | 10/10 | 5176 days | 1% |
| painter47 | 10/10 | 5207 days | 1% |
| ganbji | 9/10 | 5207 days | 1% |
| charles | 10/10 | 5238 days | 1% |
| alanos | 9/10 | 5238 days | 1% |
| teeneelz | 10/10 | 5238 days | 1% |
| Douggie | 7/10 | 5329 days | 1% |
| celticcolleen | 10/10 | 5452 days | 1% |
| MarcyMark | 10/10 | 5482 days | 1% |
| Susiekj | 10/10 | 5513 days | 1% |
| Kirsten | 10/10 | 5541 days | 1% |
| Ravi Chand | 10/10 | 5572 days | 1% |
| Sika | 10/10 | 5572 days | 1% |
| anthony mcclaren | 9/10 | 5572 days | 1% |
| menzel | 10/10 | 5586 days | 0% |
| joannaw | 10/10 | 5588 days | 0% |
| meisterbaumann | 10/10 | 5603 days | 1% |
| Stefanie Micheler | 10/10 | 5614 days | 0% |
| Aussies | 10/10 | 5633 days | 1% |
| Jake Volle | 10/10 | 5633 days | 1% |
| Jess Woods | 10/10 | 5694 days | 1% |
| emmah | 9/10 | 5730 days | 0% |
| Dave Roebuck | 10/10 | 5756 days | 1% |
| steph_m | 9/10 | 5856 days | 1% |
| JasonL | 8/10 | 5859 days | 0% |
| Tanja Kirschmann | 10/10 | 5860 days | 1% |
| MicheyJ | 10/10 | 5862 days | 1% |
| caz | 10/10 | 5883 days | 1% |
| Cilla | 10/10 | 5888 days | 0% |
| Hannah | 10/10 | 5890 days | 1% |
| karlijn schaap | 10/10 | 5967 days | 1% |
| Murray | 10/10 | 5997 days | 1% |
| Jan Burch | 9/10 | 6110 days | 1% |
| zane mirfin | 10/10 | 6166 days | 1% |
| becky | 10/10 | 6194 days | 1% |
| dave | 9/10 | 6222 days | 1% |
| shinylight | 9/10 | 6254 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
-2.23% 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 121 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 118 | -2.17% |
| 119 | -2.19% |
| 120 | -2.21% |
| 121 | -2.23% |
| 122 | -2.25% |
| 123 | -2.26% |
| 124 | -2.28% |
| … | … |
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.