Ranking Score Explained
Hi there, 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.
Nick Morrison
Rankers owner
Tongariro River Rafting
Valid Reviews
148 Valid Reviews
The Tongariro River Rafting experience has a total of 149 reviews. There are 148 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 148 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 124 |
|
84% |
| 9/10 | 17 |
|
11% |
| 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% |
97.77% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 97.77% and is based on 148 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 148 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
99.25%
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 | Face-to-Face | Weight | Relative Weight |
|---|---|---|---|---|---|
| Helen Turner | 10/10 | 45 days | 99.68 | 100% | |
| James | 10/10 | 76 days | 99.08 | 99% | |
| Isabelle_Qc | 10/10 | 107 days | 98.19 | 98% | |
| Laura | 10/10 | 137 days | 97.03 | 97% | |
| ACE Richardson | 10/10 | 168 days | 95.53 | 96% | |
| Thea :-) | 10/10 | 229 days | 91.69 | 92% | |
| William Webb | 10/10 | 257 days | 89.53 | 90% | |
| Katelyn Mills | 10/10 | 257 days | 89.53 | 90% | |
| Mrs Smith | 10/10 | 257 days | 89.53 | 90% | |
| Mel | 10/10 | 257 days | 89.53 | 90% | |
| Wayne Smith | 10/10 | 257 days | 89.53 | 90% | |
| Kim | 10/10 | 288 days | 86.86 | 87% | |
| Songyang Liu | 10/10 | 288 days | 86.86 | 87% | |
| Mark Haydon | 10/10 | 622 days | 40.45 | 40% | |
| Kathryn Sherlock | 10/10 | 837 days | 15.55 | 15% | |
| Cherie Kemp | 10/10 | 837 days | 15.55 | 15% | |
| Renee Kemp | 10/10 | 837 days | 15.55 | 15% | |
| Patrick McIvor | 10/10 | 959 days | 7.93 | 7% | |
| Lengxi | 10/10 | 985 days |  |
8.3 | 7% |
| Uschi Pongratz | 10/10 | 993 days | |
7.98 | 7% |
| Jessica Ruhland | 10/10 | 993 days | |
7.98 | 7% |
| Paul | 7/10 | 998 days | |
7.79 | 7% |
| Philip Piel | 8/10 | 998 days | |
7.79 | 7% |
| Chiara | 8/10 | 998 days | |
7.79 | 7% |
| Jess | 10/10 | 1035 days | |
6.68 | 6% |
| TashJ | 10/10 | 1050 days | 5.32 | 4% | |
| Funny Schutt | 10/10 | 1050 days | 5.32 | 4% | |
| Craig McCarthy | 10/10 | 1080 days | 5.04 | 4% | |
| Tim K | 10/10 | 1080 days | 5.04 | 4% | |
| Jack Shearer | 10/10 | 1203 days | 4.85 | 4% | |
| Monika M | 10/10 | 1233 days | 4.81 | 4% | |
| Ian Wilmot | 10/10 | 1294 days | 4.73 | 4% | |
| Rodger Lamb | 10/10 | 1325 days | 4.68 | 4% | |
| Leah Kyllo | 10/10 | 1384 days | 4.6 | 3% | |
| Juliet Battersby | 10/10 | 1384 days | 4.6 | 3% | |
| Chris C | 10/10 | 1445 days | 4.52 | 3% | |
| Jessica | 10/10 | 1537 days | 4.39 | 3% | |
| Mike Hollows | 10/10 | 1629 days | 4.27 | 3% | |
| Monique Hollows | 10/10 | 1690 days | 4.18 | 3% | |
| Thomas Subritzky | 10/10 | 1690 days | 4.18 | 3% | |
| Helen Steele | 10/10 | 1718 days | 4.15 | 3% | |
| andy godfrey | 9/10 | 1749 days | 4.1 | 3% | |
| Chris Nisbet | 8/10 | 1749 days | 4.1 | 3% | |
| Michelle Sanders | 9/10 | 1780 days | 4.06 | 3% | |
| phil costello | 8/10 | 1810 days | 4.02 | 3% | |
| Robyn Orchard | 10/10 | 1841 days | 3.98 | 3% | |
| Gisele Phillips | 9/10 | 1841 days | 3.98 | 3% | |
| E Wall | 10/10 | 1841 days | 3.98 | 3% | |
| Julie | 10/10 | 1871 days | 3.94 | 3% | |
| Little | 10/10 | 1871 days | 3.94 | 3% | |
| Grahame Keast | 10/10 | 1902 days | 3.89 | 3% | |
| Linda Bates | 10/10 | 1902 days | 3.89 | 3% | |
| Morgan Buckingham | 10/10 | 1902 days | 3.89 | 3% | |
| Bertiethebus | 10/10 | 2024 days | 3.73 | 3% | |
| Julian Roots | 10/10 | 2055 days | 3.68 | 3% | |
| Lynette Nicolson | 10/10 | 2114 days | 3.6 | 2% | |
| RENs Rens | 10/10 | 2114 days | 3.6 | 2% | |
| CKDNH | 10/10 | 2175 days | 3.52 | 2% | |
| mattus | 9/10 | 2175 days | 3.52 | 2% | |
| Ken | 10/10 | 2175 days | 3.52 | 2% | |
| Kathy27 | 10/10 | 2175 days | 3.52 | 2% | |
| ladywithplants | 9/10 | 2236 days | 3.44 | 2% | |
| princessliz | 10/10 | 2236 days | 3.44 | 2% | |
| lariley | 9/10 | 2236 days | 3.44 | 2% | |
| richardp | 10/10 | 2267 days | 3.39 | 2% | |
| prasanth03 | 10/10 | 2298 days | 3.35 | 2% | |
| EllieW | 10/10 | 2328 days | 3.31 | 2% | |
| Terry | 10/10 | 2389 days | 3.23 | 2% | |
| Borderland | 10/10 | 2420 days | 3.18 | 2% | |
| jimbob | 10/10 | 2420 days | 3.18 | 2% | |
| mopheim | 10/10 | 2420 days | 3.18 | 2% | |
| Mats Harstedt | 9/10 | 2429 days | |
3.81 | 3% |
| KateS | 10/10 | 2449 days | 3.15 | 2% | |
| RubberDuck | 10/10 | 2480 days | 3.1 | 2% | |
| Red_Hurring | 10/10 | 2480 days | 3.1 | 2% | |
| travelpam | 10/10 | 2480 days | 3.1 | 2% | |
| barjjake | 9/10 | 2480 days | 3.1 | 2% | |
| cindyd | 10/10 | 2511 days | 3.06 | 2% | |
| webstersuk | 10/10 | 2511 days | 3.06 | 2% | |
| pezalone | 10/10 | 2511 days | 3.06 | 2% | |
| WiseOwl | 10/10 | 2511 days | 3.06 | 2% | |
| mausandhari | 10/10 | 2511 days | 3.06 | 2% | |
| Pauline | 10/10 | 2541 days | 3.02 | 2% | |
| JadesWorld | 9/10 | 2541 days | 3.02 | 2% | |
| utstarfish | 10/10 | 2541 days | 3.02 | 2% | |
| johnco78 | 10/10 | 2541 days | 3.02 | 2% | |
| jrwholey | 10/10 | 2572 days | 2.98 | 2% | |
| ShawnM | 10/10 | 2572 days | 2.98 | 2% | |
| Tarsh | 10/10 | 2572 days | 2.98 | 2% | |
| lindahealey | 10/10 | 2572 days | 2.98 | 2% | |
| campbell_steven | 10/10 | 2602 days | 2.94 | 2% | |
| markrussell | 10/10 | 2602 days | 2.94 | 2% | |
| Bayneer | 10/10 | 2602 days | 2.94 | 2% | |
| jaspreetsohal86 | 10/10 | 2602 days | 2.94 | 2% | |
| kiwiholly | 10/10 | 2602 days | 2.94 | 2% | |
| garethd1980 | 10/10 | 2602 days | 2.94 | 2% | |
| Mulliano | 10/10 | 2602 days | 2.94 | 2% | |
| CathyK | 10/10 | 2633 days | 2.89 | 2% | |
| silver | 10/10 | 2633 days | 2.89 | 2% | |
| Meyerclan | 10/10 | 2664 days | 2.85 | 2% | |
| poetania | 10/10 | 2694 days | 2.81 | 2% | |
| southernboy611 | 10/10 | 2694 days | 2.81 | 2% | |
| EvilChris | 10/10 | 2725 days | 2.77 | 2% | |
| nia427 | 10/10 | 2755 days | 2.73 | 2% | |
| Mags620 | 10/10 | 2755 days | 2.73 | 2% | |
| deanblackburn | 10/10 | 2755 days | 2.73 | 2% | |
| Heatherorchard | 10/10 | 2786 days | 2.68 | 2% | |
| BeetleBom | 10/10 | 2786 days | 2.68 | 2% | |
| AnnaBain | 10/10 | 2814 days | 2.65 | 1% | |
| geezer | 10/10 | 2814 days | 2.65 | 1% | |
| Jen | 10/10 | 2814 days | 2.65 | 1% | |
| busheybrew | 10/10 | 2814 days | 2.65 | 1% | |
| painter47 | 10/10 | 2845 days | 2.6 | 1% | |
| ganbji | 9/10 | 2845 days | 2.6 | 1% | |
| charles | 10/10 | 2876 days | 2.56 | 1% | |
| alanos | 9/10 | 2876 days | 2.56 | 1% | |
| teeneelz | 10/10 | 2876 days | 2.56 | 1% | |
| Douggie | 7/10 | 2967 days | 2.44 | 1% | |
| celticcolleen | 10/10 | 3090 days | 2.27 | 1% | |
| MarcyMark | 10/10 | 3120 days | 2.23 | 1% | |
| Susiekj | 10/10 | 3151 days | 2.18 | 1% | |
| Kirsten | 10/10 | 3179 days | 2.15 | 1% | |
| Ravi Chand | 10/10 | 3210 days | 2.1 | 1% | |
| Sika | 10/10 | 3210 days | 2.1 | 1% | |
| anthony mcclaren | 9/10 | 3210 days | 2.1 | 1% | |
| menzel | 10/10 | 3224 days | |
2.5 | 1% |
| joannaw | 10/10 | 3226 days | |
2.5 | 1% |
| meisterbaumann | 10/10 | 3241 days | 2.06 | 1% | |
| Stefanie Micheler | 10/10 | 3252 days | |
2.45 | 1% |
| Aussies | 10/10 | 3271 days | 2.02 | 1% | |
| Jake Volle | 10/10 | 3271 days | 2.02 | 1% | |
| Jess Woods | 10/10 | 3332 days | 1.94 | 1% | |
| emmah | 9/10 | 3368 days | |
2.26 | 1% |
| Dave Roebuck | 10/10 | 3394 days | 1.85 | 1% | |
| steph_m | 9/10 | 3494 days | 1.71 | 1% | |
| JasonL | 8/10 | 3497 days | |
2.05 | 1% |
| Tanja Kirschmann | 10/10 | 3499 days | 1.71 | 1% | |
| MicheyJ | 10/10 | 3500 days | 1.71 | 1% | |
| caz | 10/10 | 3521 days | 1.68 | 1% | |
| Cilla | 10/10 | 3526 days | |
2.0 | 1% |
| Hannah | 10/10 | 3529 days | 1.67 | 1% | |
| karlijn schaap | 10/10 | 3606 days | 1.56 | 0% | |
| Murray | 10/10 | 3636 days | 1.52 | 0% | |
| Jan Burch | 9/10 | 3748 days | 1.37 | 0% | |
| zane mirfin | 10/10 | 3804 days | 1.29 | 0% | |
| becky | 10/10 | 3832 days | 1.25 | 0% | |
| dave | 9/10 | 3860 days | 1.21 | 0% | |
| shinylight | 9/10 | 3892 days | 1.17 | 0% |
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
-0.40% Adjustment
There may be an adjustment if an experience hasn't received any reviews within the last 60 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 364 days.
The Tongariro River Rafting experience has been adjusted for 20 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 17 | -0.34% |
| 18 | -0.36% |
| 19 | -0.38% |
| 20 | -0.40% |
| 21 | -0.42% |
| 22 | -0.44% |
| 23 | -0.46% |
| … | … |
Final Ranking Score
99%
The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.