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 PiwiWiwi Campervans.
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.
PiwiWiwi Campervans
Valid Reviews
240 Valid Reviews
The PiwiWiwi Campervans experience has a total of 245 reviews. There are 240 valid reviews that are included when calculating the ranking score and 5 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 240 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 223 |
|
93% |
| 9/10 | 15 |
|
6% |
| 8/10 | 2 |
|
1% |
| 7/10 | 0 |
|
0% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
99.21% Average
The raw data average (mean) for all the PiwiWiwi Campervans valid reviews is 99.21% and is based on 240 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
6 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 240 valid reviews, the experience has 6 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 6 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 6 |
|
100% |
| 9/10 | 0 |
|
0% |
| 8/10 | 0 |
|
0% |
| 7/10 | 0 |
|
0% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
100.00% Average
The raw data average (mean) for all the PiwiWiwi Campervans face-to-face reviews is 100.00% and is based on 6 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
99.36%
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 |
|---|---|---|---|
| Mikki | 10/10 | 21 days | 100% |
| Emily | 10/10 | 52 days | 100% |
| Barbara and Paul | 10/10 | 80 days | 99% |
| Louise | 10/10 | 80 days | 99% |
| Richie Miller | 10/10 | 111 days | 98% |
| B&L | 10/10 | 142 days | 97% |
| Lee Beever | 10/10 | 172 days | 95% |
| Aliena | 10/10 | 172 days | 95% |
| Anneke Togo | 10/10 | 203 days | 94% |
| Lynne and Julie | 10/10 | 203 days | 94% |
| Lucy Evans | 10/10 | 203 days | 94% |
| Marie and Cameron | 10/10 | 203 days | 94% |
| Antonia | 10/10 | 295 days | 86% |
| Charles & Sophie | 10/10 | 295 days | 86% |
| Tess | 10/10 | 356 days | 80% |
| Sam | 10/10 | 356 days | 80% |
| Sarah Creegan | 10/10 | 417 days | 72% |
| Angela Gray | 10/10 | 417 days | 72% |
| Matt Linton | 10/10 | 417 days | 72% |
| Ashleigh Lim | 10/10 | 417 days | 72% |
| Hartmut | 10/10 | 417 days | 72% |
| Elyse | 10/10 | 417 days | 72% |
| Kevin Merrill | 10/10 | 446 days | 68% |
| Mark Slaski | 10/10 | 446 days | 68% |
| Daisy Baish | 10/10 | 446 days | 68% |
| Emma Hamasaki | 9/10 | 446 days | 68% |
| Katie OBlock | 10/10 | 446 days | 68% |
| Markus Salomon | 10/10 | 446 days | 68% |
| Chris Felicetta | 10/10 | 477 days | 64% |
| Janet | 10/10 | 477 days | 64% |
| Phillip H | 10/10 | 477 days | 64% |
| Tia | 10/10 | 477 days | 64% |
| Kilolimabravo | 10/10 | 477 days | 64% |
| Nichole Braase | 10/10 | 477 days | 64% |
| Sara & Michael | 10/10 | 477 days | 64% |
| Sally and Davy | 10/10 | 508 days | 59% |
| M. Nederveen | 9/10 | 508 days | 59% |
| Melanie | 10/10 | 508 days | 59% |
| Katie Cooper | 10/10 | 508 days | 59% |
| Ed & Catherine | 9/10 | 508 days | 59% |
| Katherine Paschall | 10/10 | 538 days | 54% |
| Sandra | 10/10 | 538 days | 54% |
| Rebecca Sutherland | 10/10 | 538 days | 54% |
| Olga and Evan Patronik | 10/10 | 538 days | 54% |
| Lore & Sébastien | 10/10 | 538 days | 54% |
| Scott and Zef | 10/10 | 538 days | 54% |
| Sophie Van Tol | 10/10 | 569 days | 49% |
| Maire Peate | 10/10 | 569 days | 49% |
| Avalon Ridler | 10/10 | 569 days | 49% |
| Sarah | 10/10 | 569 days | 49% |
| Jonneke van de Kamp | 10/10 | 569 days | 49% |
| jess c | 10/10 | 569 days | 49% |
| John Sivigny | 10/10 | 599 days | 44% |
| Maureen Clarke | 10/10 | 599 days | 44% |
| Stephen Hall | 10/10 | 599 days | 44% |
| Darryl Neo | 10/10 | 722 days | 27% |
| Harry Newton | 10/10 | 722 days | 27% |
| Brooke | 10/10 | 722 days | 27% |
| Felicia and Andy | 10/10 | 752 days | 24% |
| LB & Michael | 10/10 | 752 days | 24% |
| Päivi and John Anderson | 8/10 | 752 days | 22% |
| Matt Linton | 10/10 | 783 days | 20% |
| Sandy Curry | 9/10 | 783 days | 20% |
| Scott Browning | 10/10 | 783 days | 20% |
| Matthijs, Anouk en Mika Smit | 10/10 | 783 days | 20% |
| Maija Morgenweck | 10/10 | 783 days | 20% |
| JPliska | 10/10 | 811 days | 18% |
| Henry Meehan | 10/10 | 811 days | 18% |
| Zoran | 10/10 | 811 days | 18% |
| Svea Brömel | 10/10 | 811 days | 18% |
| Martin and Nikola | 10/10 | 811 days | 18% |
| John and Barbara | 10/10 | 842 days | 15% |
| Phillip Hartin | 10/10 | 842 days | 15% |
| Andrew Borch | 10/10 | 842 days | 15% |
| Niek and Anne (The Netherlands) | 10/10 | 842 days | 15% |
| Joash Picard | 10/10 | 873 days | 13% |
| Carrie | 10/10 | 873 days | 13% |
| Zoe | 10/10 | 873 days | 13% |
| Kara & Joash | 10/10 | 873 days | 13% |
| Marian van Voorn | 9/10 | 873 days | 13% |
| Amandine | 10/10 | 873 days | 13% |
| David Aylmore | 9/10 | 903 days | 11% |
| Saliha Hamici | 10/10 | 903 days | 11% |
| Sebastian Torfs | 10/10 | 903 days | 11% |
| Lochoe Mckinnon | 10/10 | 934 days | 9% |
| Eric | 10/10 | 934 days | 9% |
| Mia Tranthem | 10/10 | 934 days | 9% |
| kael Matthews | 10/10 | 934 days | 9% |
| Sophie Skinner | 10/10 | 934 days | 9% |
| Eddie | 10/10 | 1087 days | 5% |
| hazel woodhead | 10/10 | 1087 days | 5% |
| Tom Smithwick | 10/10 | 1117 days | 5% |
| Matt | 10/10 | 1117 days | 5% |
| John Sivigny | 10/10 | 1117 days | 5% |
| Lizzie Watts | 10/10 | 1117 days | 5% |
| Jonathan Clay | 10/10 | 1148 days | 5% |
| Marita O'Brien | 10/10 | 1148 days | 5% |
| Jan | 9/10 | 1148 days | 5% |
| Henry | 10/10 | 1148 days | 5% |
| Andy Barlow | 10/10 | 1176 days | 5% |
| kath combes | 10/10 | 1176 days | 5% |
| Roz Lobo | 10/10 | 1176 days | 5% |
| Jorg | 10/10 | 1176 days | 5% |
| Georgia | 10/10 | 1176 days | 5% |
| Joss, Georgia and Stef | 10/10 | 1176 days | 5% |
| petra | 10/10 | 1207 days | 5% |
| Richard Janes | 10/10 | 1207 days | 5% |
| Kristel & Tim | 10/10 | 1207 days | 5% |
| Felix Maliers | 10/10 | 1207 days | 5% |
| Greg and Syd | 9/10 | 1238 days | 5% |
| Rebecca Grace | 10/10 | 1238 days | 5% |
| Julia | 9/10 | 1238 days | 5% |
| Jonas Himpe | 10/10 | 1268 days | 4% |
| kohn stephan | 10/10 | 1268 days | 4% |
| Tim Leary | 10/10 | 1268 days | 4% |
| Tom Coul | 10/10 | 1268 days | 4% |
| Kim Verplancke | 10/10 | 1268 days | 4% |
| Chris Scrimshaw | 10/10 | 1268 days | 4% |
| Martina & Trev from Switzerland | 10/10 | 1268 days | 4% |
| Wendy and Vincent | 10/10 | 1299 days | 4% |
| James N | 10/10 | 1391 days | 4% |
| Gert van der Lugt | 10/10 | 1513 days | 4% |
| Stefan Giese | 10/10 | 1513 days | 4% |
| Hendrik Pschichholtz | 10/10 | 1513 days | 4% |
| Ray Verbeek | 10/10 | 1513 days | 4% |
| Andreas Herzog | 10/10 | 1541 days | 4% |
| Tracy Frauzel | 10/10 | 1549 days | 2% |
| michel labrecque | 10/10 | 1572 days | 4% |
| Garrett South | 10/10 | 1572 days | 4% |
| Sofia Vadman | 10/10 | 1572 days | 4% |
| Patricia Pharr-Snyder | 10/10 | 1633 days | 4% |
| Gabriel Wappler | 10/10 | 1847 days | 3% |
| Phillip M | 10/10 | 1878 days | 3% |
| Sarah Considine | 10/10 | 1878 days | 3% |
| Jack + Jade Hughes | 10/10 | 1878 days | 3% |
| Gerry Fijal | 10/10 | 1878 days | 3% |
| Melanie Keller | 10/10 | 1878 days | 3% |
| Jasper S | 10/10 | 1907 days | 3% |
| Linc | 9/10 | 1938 days | 3% |
| Rose Gutekunst | 10/10 | 1938 days | 3% |
| Marcel Janser | 10/10 | 1938 days | 3% |
| Vicki Janes | 10/10 | 1969 days | 3% |
| Ky Phillips | 10/10 | 2030 days | 3% |
| Taylor Wirth | 10/10 | 2060 days | 3% |
| Emma Gaylord | 10/10 | 2060 days | 3% |
| Jean Capron | 10/10 | 2213 days | 3% |
| Barbara | 10/10 | 2213 days | 3% |
| Jan Menzies | 10/10 | 2213 days | 3% |
| Jenny Mulholland | 10/10 | 2244 days | 3% |
| Charles norris | 10/10 | 2244 days | 3% |
| Lee & Sarah . | 10/10 | 2244 days | 3% |
| Abi Fielder | 10/10 | 2272 days | 3% |
| janny van der Burg | 10/10 | 2272 days | 3% |
| HANNAH BROOKSBANK | 10/10 | 2272 days | 3% |
| Simon Betschart | 10/10 | 2272 days | 3% |
| Yannick | 10/10 | 2303 days | 2% |
| MikeHoncho | 10/10 | 2303 days | 2% |
| Dave Ruijter | 10/10 | 2303 days | 2% |
| Alison Gemrany | 10/10 | 2303 days | 2% |
| AndyDavies | 10/10 | 2334 days | 2% |
| Priscilla | 10/10 | 2364 days | 2% |
| Sarah Jones | 10/10 | 2364 days | 2% |
| Erwin & Dani Matijsen | 10/10 | 2364 days | 2% |
| Alanna Y | 10/10 | 2364 days | 2% |
| Sal Hubert | 10/10 | 2394 days | 1% |
| Mia & Martin | 10/10 | 2395 days | 2% |
| Adam Miller | 10/10 | 2425 days | 2% |
| Joe Kuchman | 10/10 | 2548 days | 2% |
| Ryan & Rita Pierce | 10/10 | 2578 days | 2% |
| Janet Mook | 9/10 | 2609 days | 2% |
| Andy/Robyn Long | 10/10 | 2609 days | 2% |
| Jon Jamie | 10/10 | 2609 days | 2% |
| Erica Bradford | 10/10 | 2637 days | 2% |
| Paulo Dias | 10/10 | 2637 days | 2% |
| Jana Zanetto | 10/10 | 2637 days | 2% |
| David Haines-Hanham | 10/10 | 2643 days | 1% |
| Sally Haines | 10/10 | 2643 days | 1% |
| Katie | 10/10 | 2668 days | 2% |
| Stefanie Summer | 10/10 | 2668 days | 2% |
| seb_lag | 9/10 | 2668 days | 2% |
| Geo | 10/10 | 2668 days | 2% |
| Ineke & Wouter | 8/10 | 2668 days | 2% |
| sally haines-hanham | 10/10 | 2668 days | 2% |
| Marc Greeve | 10/10 | 2676 days | 1% |
| Paul Eaves | 10/10 | 2729 days | 2% |
| Anna Barber | 9/10 | 2729 days | 2% |
| Adam | 10/10 | 2760 days | 2% |
| Rob & Margot | 10/10 | 2790 days | 1% |
| Vikki reeves | 10/10 | 2790 days | 1% |
| Gerard McAuley | 10/10 | 2790 days | 1% |
| Stephanie | 10/10 | 2794 days | 1% |
| Ben Z | 10/10 | 2943 days | 1% |
| GLD | 10/10 | 2974 days | 1% |
| Colin Bond | 10/10 | 2974 days | 1% |
| HandH | 10/10 | 2974 days | 1% |
| Chris Ledwig | 10/10 | 2974 days | 1% |
| joepolog40 | 10/10 | 2974 days | 1% |
| titougreg29 | 10/10 | 3002 days | 1% |
| Brian | 10/10 | 3002 days | 1% |
| Wibo de Vries | 10/10 | 3002 days | 1% |
| Katie&Mike U | 10/10 | 3002 days | 1% |
| Peg Wooten | 10/10 | 3033 days | 1% |
| Marc Hoskins | 10/10 | 3033 days | 1% |
| Velvette | 10/10 | 3033 days | 1% |
| Stephanie Zellerer | 10/10 | 3033 days | 1% |
| Tina Gehmecker | 10/10 | 3033 days | 1% |
| paulcallanan | 10/10 | 3033 days | 1% |
| Tom Batty | 10/10 | 3033 days | 1% |
| Dave Worthington | 10/10 | 3033 days | 1% |
| Jodie Cronk | 10/10 | 3033 days | 1% |
| Jen&Digs M | 10/10 | 3064 days | 1% |
| Paul Leow | 10/10 | 3064 days | 1% |
| phnz | 10/10 | 3064 days | 1% |
| medellia371 | 10/10 | 3094 days | 1% |
| Ihopkin | 10/10 | 3094 days | 1% |
| dan_robyn | 10/10 | 3125 days | 1% |
| erinlongtrail | 10/10 | 3125 days | 1% |
| sal | 10/10 | 3155 days | 1% |
| Horius | 10/10 | 3155 days | 1% |
| kayburns | 9/10 | 3155 days | 1% |
| Funkytiptoe | 10/10 | 3155 days | 1% |
| Christian Fell | 10/10 | 3155 days | 1% |
| aloedriscoll | 10/10 | 3278 days | 1% |
| h schmidt | 10/10 | 3308 days | 0% |
| jensmitty | 10/10 | 3308 days | 0% |
| aubreyfalk | 10/10 | 3308 days | 0% |
| WDC_Oxfam2012 | 10/10 | 3308 days | 0% |
| doublesessions | 9/10 | 3339 days | 0% |
| tdean | 10/10 | 3339 days | 0% |
| Ewan | 10/10 | 3339 days | 0% |
| StefanKatie | 10/10 | 3368 days | 0% |
| François | 10/10 | 3399 days | 0% |
| essy | 10/10 | 3430 days | 0% |
| Bkeeping | 10/10 | 3430 days | 0% |
| mandaroni | 10/10 | 3460 days | 0% |
| cioffil | 10/10 | 3491 days | 0% |
| jackmason | 10/10 | 3491 days | 0% |
| greanman | 10/10 | 3491 days | 0% |
| jimmynew7121 | 10/10 | 3521 days | 0% |
| lmharwood | 10/10 | 3552 days | 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 PiwiWiwi Campervans experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-0.83% Adjustment
Recent reviews reflect the experience as it currently operates. This means it's important to get fresh reviews. Some experiences discovered they could get a few good reviews and then, resting on their laurels, discourage any further reviews. This adjustment stimulates experiences to be positively involved in the review generating process and discourages them from manipulating the ranking system in this manner.
What constitutes a recent review is based on the how old it is, what type of experience it is applied to and and what time of year it currently is. Due to the seasonal nature of many businesses, what is considered recent is dynamically adjusted throughout the year.
There may be an adjustment if this experience hasn't received enough reviews within the last 70 days. The PiwiWiwi Campervans experience has 4 recent rankings. Adjustments are according to the following table:
| Recent Reviews | Adjustment |
|---|---|
| 0 | -3.00% |
| 1 | -2.83% |
| 2 | -2.33% |
| 3 | -1.50% |
| 4 | -0.67% |
| 5 | -0.17% |
| 6 | -0.00% |
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 PiwiWiwi Campervans experience has been adjusted for 10 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 7 | -0.12% |
| 8 | -0.13% |
| 9 | -0.15% |
| 10 | -0.17% |
| 11 | -0.18% |
| 12 | -0.20% |
| 13 | -0.22% |
| … | … |
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.