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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

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.