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

235 Valid Reviews

The PiwiWiwi Campervans experience has a total of 240 reviews. There are 235 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 235 valid reviews:

Rating Count Percentage
10/10 218
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%

99.19% Average

The raw data average (mean) for all the PiwiWiwi Campervans valid reviews is 99.19% and is based on 235 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 235 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

99.24%

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
B&L 10/10 48 days 100%
Lee Beever 10/10 78 days 99%
Aliena 10/10 78 days 99%
Anneke Togo 10/10 109 days 98%
Lynne and Julie 10/10 109 days 98%
Lucy Evans 10/10 109 days 98%
Marie and Cameron 10/10 109 days 98%
Antonia 10/10 201 days 94%
Charles & Sophie 10/10 201 days 94%
Tess 10/10 262 days 89%
Sam 10/10 262 days 89%
Sarah Creegan 10/10 323 days 84%
Angela Gray 10/10 323 days 84%
Matt Linton 10/10 323 days 84%
Ashleigh Lim 10/10 323 days 84%
Hartmut 10/10 323 days 84%
Elyse 10/10 323 days 84%
Kevin Merrill 10/10 352 days 81%
Mark Slaski 10/10 352 days 81%
Daisy Baish 10/10 352 days 81%
Emma Hamasaki 9/10 352 days 81%
Katie OBlock 10/10 352 days 81%
Markus Salomon 10/10 352 days 81%
Chris Felicetta 10/10 383 days 77%
Janet 10/10 383 days 77%
Phillip H 10/10 383 days 77%
Tia 10/10 383 days 77%
Kilolimabravo 10/10 383 days 77%
Nichole Braase 10/10 383 days 77%
Sara & Michael 10/10 383 days 77%
Sally and Davy 10/10 414 days 73%
M. Nederveen 9/10 414 days 73%
Melanie 10/10 414 days 73%
Katie Cooper 10/10 414 days 73%
Ed & Catherine 9/10 414 days 73%
Katherine Paschall 10/10 443 days 69%
Sandra 10/10 444 days 69%
Rebecca Sutherland 10/10 444 days 69%
Olga and Evan Patronik 10/10 444 days 69%
Lore & Sébastien 10/10 444 days 69%
Scott and Zef 10/10 444 days 69%
Sophie Van Tol 10/10 474 days 64%
Maire Peate 10/10 475 days 64%
Avalon Ridler 10/10 475 days 64%
Sarah 10/10 475 days 64%
Jonneke van de Kamp 10/10 475 days 64%
jess c 10/10 475 days 64%
John Sivigny 10/10 505 days 60%
Maureen Clarke 10/10 505 days 60%
Stephen Hall 10/10 505 days 60%
Darryl Neo 10/10 628 days 39%
Harry Newton 10/10 628 days 39%
Brooke 10/10 628 days 39%
Felicia and Andy 10/10 658 days 35%
LB & Michael 10/10 658 days 35%
Päivi and John Anderson 8/10 658 days 33%
Matt Linton 10/10 689 days 31%
Sandy Curry 9/10 689 days 31%
Scott Browning 10/10 689 days 31%
Matthijs, Anouk en Mika Smit 10/10 689 days 31%
Maija Morgenweck 10/10 689 days 31%
JPliska 10/10 717 days 27%
Henry Meehan 10/10 717 days 27%
Zoran 10/10 717 days 27%
Svea Brömel 10/10 717 days 27%
Martin and Nikola 10/10 717 days 27%
John and Barbara 10/10 748 days 24%
Phillip Hartin 10/10 748 days 24%
Andrew Borch 10/10 748 days 24%
Niek and Anne (The Netherlands) 10/10 748 days 24%
Joash Picard 10/10 778 days 21%
Carrie 10/10 779 days 21%
Zoe 10/10 779 days 21%
Kara & Joash 10/10 779 days 21%
Marian van Voorn 9/10 779 days 21%
Amandine 10/10 779 days 21%
David Aylmore 9/10 808 days 18%
Saliha Hamici 10/10 809 days 18%
Sebastian Torfs 10/10 809 days 18%
Lochoe Mckinnon 10/10 839 days 15%
Eric 10/10 840 days 15%
Mia Tranthem 10/10 840 days 15%
kael Matthews 10/10 840 days 15%
Sophie Skinner 10/10 840 days 15%
Eddie 10/10 993 days 6%
hazel woodhead 10/10 993 days 6%
Tom Smithwick 10/10 1022 days 6%
Matt 10/10 1023 days 5%
John Sivigny 10/10 1023 days 5%
Lizzie Watts 10/10 1023 days 5%
Jonathan Clay 10/10 1054 days 5%
Marita O'Brien 10/10 1054 days 5%
Jan 9/10 1054 days 5%
Henry 10/10 1054 days 5%
Andy Barlow 10/10 1082 days 5%
kath combes 10/10 1082 days 5%
Roz Lobo 10/10 1082 days 5%
Jorg 10/10 1082 days 5%
Georgia 10/10 1082 days 5%
Joss, Georgia and Stef 10/10 1082 days 5%
petra 10/10 1112 days 5%
Richard Janes 10/10 1112 days 5%
Kristel & Tim 10/10 1112 days 5%
Felix Maliers 10/10 1113 days 5%
Greg and Syd 9/10 1143 days 5%
Rebecca Grace 10/10 1143 days 5%
Julia 9/10 1144 days 5%
Jonas Himpe 10/10 1173 days 5%
kohn stephan 10/10 1173 days 5%
Tim Leary 10/10 1173 days 5%
Tom Coul 10/10 1173 days 5%
Kim Verplancke 10/10 1173 days 5%
Chris Scrimshaw 10/10 1173 days 5%
Martina & Trev from Switzerland 10/10 1174 days 5%
Wendy and Vincent 10/10 1204 days 4%
James N 10/10 1296 days 4%
Gert van der Lugt 10/10 1418 days 4%
Stefan Giese 10/10 1418 days 4%
Hendrik Pschichholtz 10/10 1418 days 4%
Ray Verbeek 10/10 1418 days 4%
Andreas Herzog 10/10 1446 days 4%
Tracy Frauzel 10/10 1455 days 2%
michel labrecque 10/10 1477 days 4%
Garrett South 10/10 1477 days 4%
Sofia Vadman 10/10 1477 days 4%
Patricia Pharr-Snyder 10/10 1538 days 4%
Gabriel Wappler 10/10 1752 days 3%
Phillip M 10/10 1783 days 3%
Sarah Considine 10/10 1783 days 3%
Jack + Jade Hughes 10/10 1783 days 3%
Gerry Fijal 10/10 1783 days 3%
Melanie Keller 10/10 1783 days 3%
Jasper S 10/10 1812 days 3%
Linc 9/10 1843 days 3%
Rose Gutekunst 10/10 1843 days 3%
Marcel Janser 10/10 1843 days 3%
Vicki Janes 10/10 1874 days 3%
Ky Phillips 10/10 1936 days 3%
Taylor Wirth 10/10 1965 days 3%
Emma Gaylord 10/10 1965 days 3%
Jean Capron 10/10 2118 days 3%
Barbara 10/10 2118 days 3%
Jan Menzies 10/10 2118 days 3%
Jenny Mulholland 10/10 2149 days 3%
Charles norris 10/10 2149 days 3%
Lee & Sarah . 10/10 2149 days 3%
Abi Fielder 10/10 2177 days 3%
janny van der Burg 10/10 2177 days 3%
HANNAH BROOKSBANK 10/10 2177 days 3%
Simon Betschart 10/10 2177 days 3%
Yannick 10/10 2208 days 2%
MikeHoncho 10/10 2208 days 2%
Dave Ruijter 10/10 2208 days 2%
Alison Gemrany 10/10 2208 days 2%
AndyDavies 10/10 2239 days 2%
Priscilla 10/10 2269 days 2%
Sarah Jones 10/10 2269 days 2%
Erwin & Dani Matijsen 10/10 2269 days 2%
Alanna Y 10/10 2269 days 2%
Sal Hubert 10/10 2300 days 1%
Mia & Martin 10/10 2300 days 2%
Adam Miller 10/10 2330 days 2%
Joe Kuchman 10/10 2454 days 2%
Ryan & Rita Pierce 10/10 2484 days 2%
Janet Mook 9/10 2515 days 2%
Andy/Robyn Long 10/10 2515 days 2%
Jon Jamie 10/10 2515 days 2%
Erica Bradford 10/10 2543 days 2%
Paulo Dias 10/10 2543 days 2%
Jana Zanetto 10/10 2543 days 2%
David Haines-Hanham 10/10 2549 days 1%
Sally Haines 10/10 2549 days 1%
Katie 10/10 2574 days 2%
Stefanie Summer 10/10 2574 days 2%
seb_lag 9/10 2574 days 2%
Geo 10/10 2574 days 2%
Ineke & Wouter 8/10 2574 days 2%
sally haines-hanham 10/10 2574 days 2%
Marc Greeve 10/10 2582 days 1%
Paul Eaves 10/10 2635 days 2%
Anna Barber 9/10 2635 days 2%
Adam 10/10 2666 days 2%
Rob & Margot 10/10 2696 days 2%
Vikki reeves 10/10 2696 days 2%
Gerard McAuley 10/10 2696 days 2%
Stephanie 10/10 2700 days 1%
Ben Z 10/10 2849 days 1%
GLD 10/10 2880 days 1%
Colin Bond 10/10 2880 days 1%
HandH 10/10 2880 days 1%
Chris Ledwig 10/10 2880 days 1%
joepolog40 10/10 2880 days 1%
titougreg29 10/10 2908 days 1%
Brian 10/10 2908 days 1%
Wibo de Vries 10/10 2908 days 1%
Katie&Mike U 10/10 2908 days 1%
Peg Wooten 10/10 2939 days 1%
Marc Hoskins 10/10 2939 days 1%
Velvette 10/10 2939 days 1%
Stephanie Zellerer 10/10 2939 days 1%
Tina Gehmecker 10/10 2939 days 1%
paulcallanan 10/10 2939 days 1%
Tom Batty 10/10 2939 days 1%
Dave Worthington 10/10 2939 days 1%
Jodie Cronk 10/10 2939 days 1%
Jen&Digs M 10/10 2970 days 1%
Paul Leow 10/10 2970 days 1%
phnz 10/10 2970 days 1%
medellia371 10/10 3000 days 1%
Ihopkin 10/10 3000 days 1%
dan_robyn 10/10 3031 days 1%
erinlongtrail 10/10 3031 days 1%
sal 10/10 3061 days 1%
Horius 10/10 3061 days 1%
kayburns 9/10 3061 days 1%
Funkytiptoe 10/10 3061 days 1%
Christian Fell 10/10 3061 days 1%
aloedriscoll 10/10 3184 days 1%
h schmidt 10/10 3214 days 0%
jensmitty 10/10 3214 days 0%
aubreyfalk 10/10 3214 days 0%
WDC_Oxfam2012 10/10 3214 days 0%
doublesessions 9/10 3245 days 0%
tdean 10/10 3245 days 0%
Ewan 10/10 3245 days 0%
StefanKatie 10/10 3274 days 0%
François 10/10 3305 days 0%
essy 10/10 3336 days 0%
Bkeeping 10/10 3336 days 0%
mandaroni 10/10 3366 days 0%
cioffil 10/10 3397 days 0%
jackmason 10/10 3397 days 0%
greanman 10/10 3397 days 0%
jimmynew7121 10/10 3427 days 0%
lmharwood 10/10 3458 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

-0.93% 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 46 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 13 days. Adjustments are according to the following table.

Days Adjustment
10 -0.20%
11 -0.23%
12 -0.25%
13 -0.27%
14 -0.29%
15 -0.31%
16 -0.33%

Final Ranking Score

98%

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.