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

245 Valid Reviews

The PiwiWiwi Campervans experience has a total of 251 reviews. There are 245 valid reviews that are included when calculating the ranking score and 6 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 245 valid reviews:

Rating Count Percentage
10/10 227
93%
9/10 15
6%
8/10 3
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%

99.14% Average

The raw data average (mean) for all the PiwiWiwi Campervans valid reviews is 99.14% and is based on 245 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 245 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

99.05%

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
Nicole 10/10 59 days 100%
Mikki 10/10 181 days 95%
Trudy and Mark Watts 8/10 181 days 91%
Brad Wilson 10/10 181 days 95%
Dan Couchman 10/10 181 days 95%
Emily 10/10 212 days 93%
Jesse O 10/10 212 days 93%
Barbara and Paul 10/10 240 days 91%
Louise 10/10 240 days 91%
Richie Miller 10/10 271 days 89%
B&L 10/10 302 days 86%
Lee Beever 10/10 332 days 83%
Aliena 10/10 332 days 83%
Anneke Togo 10/10 363 days 80%
Lynne and Julie 10/10 363 days 80%
Lucy Evans 10/10 363 days 80%
Marie and Cameron 10/10 363 days 80%
Antonia 10/10 455 days 68%
Charles & Sophie 10/10 455 days 68%
Tess 10/10 516 days 58%
Sam 10/10 516 days 58%
Sarah Creegan 10/10 577 days 48%
Angela Gray 10/10 577 days 48%
Matt Linton 10/10 577 days 48%
Ashleigh Lim 10/10 577 days 48%
Hartmut 10/10 577 days 48%
Elyse 10/10 577 days 48%
Kevin Merrill 10/10 606 days 43%
Mark Slaski 10/10 606 days 43%
Daisy Baish 10/10 606 days 43%
Emma Hamasaki 9/10 606 days 43%
Katie OBlock 10/10 606 days 43%
Markus Salomon 10/10 606 days 43%
Chris Felicetta 10/10 637 days 38%
Janet 10/10 637 days 38%
Phillip H 10/10 637 days 38%
Tia 10/10 637 days 38%
Kilolimabravo 10/10 637 days 38%
Nichole Braase 10/10 637 days 38%
Sara & Michael 10/10 637 days 38%
Sally and Davy 10/10 668 days 34%
M. Nederveen 9/10 668 days 34%
Melanie 10/10 668 days 34%
Katie Cooper 10/10 668 days 34%
Ed & Catherine 9/10 668 days 34%
Katherine Paschall 10/10 697 days 30%
Sandra 10/10 698 days 30%
Rebecca Sutherland 10/10 698 days 30%
Olga and Evan Patronik 10/10 698 days 30%
Lore & Sébastien 10/10 698 days 30%
Scott and Zef 10/10 698 days 30%
Sophie Van Tol 10/10 728 days 26%
Maire Peate 10/10 729 days 26%
Avalon Ridler 10/10 729 days 26%
Sarah 10/10 729 days 26%
Jonneke van de Kamp 10/10 729 days 26%
jess c 10/10 729 days 26%
John Sivigny 10/10 759 days 23%
Maureen Clarke 10/10 759 days 23%
Stephen Hall 10/10 759 days 23%
Darryl Neo 10/10 882 days 12%
Harry Newton 10/10 882 days 12%
Brooke 10/10 882 days 12%
Felicia and Andy 10/10 912 days 10%
LB & Michael 10/10 912 days 10%
Päivi and John Anderson 8/10 912 days 10%
Matt Linton 10/10 943 days 9%
Sandy Curry 9/10 943 days 9%
Scott Browning 10/10 943 days 9%
Matthijs, Anouk en Mika Smit 10/10 943 days 9%
Maija Morgenweck 10/10 943 days 9%
JPliska 10/10 971 days 7%
Henry Meehan 10/10 971 days 7%
Zoran 10/10 971 days 7%
Svea Brömel 10/10 971 days 7%
Martin and Nikola 10/10 971 days 7%
John and Barbara 10/10 1002 days 6%
Phillip Hartin 10/10 1002 days 6%
Andrew Borch 10/10 1002 days 6%
Niek and Anne (The Netherlands) 10/10 1002 days 6%
Joash Picard 10/10 1032 days 6%
Carrie 10/10 1033 days 6%
Zoe 10/10 1033 days 6%
Kara & Joash 10/10 1033 days 6%
Marian van Voorn 9/10 1033 days 6%
Amandine 10/10 1033 days 6%
David Aylmore 9/10 1062 days 5%
Saliha Hamici 10/10 1063 days 5%
Sebastian Torfs 10/10 1063 days 5%
Lochoe Mckinnon 10/10 1093 days 5%
Eric 10/10 1094 days 5%
Mia Tranthem 10/10 1094 days 5%
kael Matthews 10/10 1094 days 5%
Sophie Skinner 10/10 1094 days 5%
Eddie 10/10 1247 days 5%
hazel woodhead 10/10 1247 days 5%
Tom Smithwick 10/10 1276 days 5%
Matt 10/10 1277 days 5%
John Sivigny 10/10 1277 days 5%
Lizzie Watts 10/10 1277 days 5%
Jonathan Clay 10/10 1308 days 5%
Marita O'Brien 10/10 1308 days 5%
Jan 9/10 1308 days 5%
Henry 10/10 1308 days 5%
Andy Barlow 10/10 1336 days 4%
kath combes 10/10 1336 days 4%
Roz Lobo 10/10 1336 days 4%
Jorg 10/10 1336 days 4%
Georgia 10/10 1336 days 4%
Joss, Georgia and Stef 10/10 1336 days 4%
petra 10/10 1366 days 4%
Richard Janes 10/10 1366 days 4%
Kristel & Tim 10/10 1366 days 4%
Felix Maliers 10/10 1367 days 4%
Greg and Syd 9/10 1397 days 4%
Rebecca Grace 10/10 1397 days 4%
Julia 9/10 1398 days 4%
Jonas Himpe 10/10 1427 days 4%
kohn stephan 10/10 1427 days 4%
Tim Leary 10/10 1427 days 4%
Tom Coul 10/10 1427 days 4%
Kim Verplancke 10/10 1427 days 4%
Chris Scrimshaw 10/10 1427 days 4%
Martina & Trev from Switzerland 10/10 1428 days 4%
Wendy and Vincent 10/10 1458 days 4%
James N 10/10 1550 days 4%
Gert van der Lugt 10/10 1672 days 4%
Stefan Giese 10/10 1672 days 4%
Hendrik Pschichholtz 10/10 1672 days 4%
Ray Verbeek 10/10 1672 days 4%
Andreas Herzog 10/10 1700 days 4%
Tracy Frauzel 10/10 1709 days 2%
michel labrecque 10/10 1731 days 4%
Garrett South 10/10 1731 days 4%
Sofia Vadman 10/10 1731 days 4%
Patricia Pharr-Snyder 10/10 1792 days 4%
Gabriel Wappler 10/10 2006 days 3%
Phillip M 10/10 2037 days 3%
Sarah Considine 10/10 2037 days 3%
Jack + Jade Hughes 10/10 2037 days 3%
Gerry Fijal 10/10 2037 days 3%
Melanie Keller 10/10 2037 days 3%
Jasper S 10/10 2066 days 3%
Linc 9/10 2097 days 3%
Rose Gutekunst 10/10 2097 days 3%
Marcel Janser 10/10 2097 days 3%
Vicki Janes 10/10 2128 days 3%
Ky Phillips 10/10 2190 days 3%
Taylor Wirth 10/10 2219 days 3%
Emma Gaylord 10/10 2219 days 3%
Jean Capron 10/10 2372 days 2%
Barbara 10/10 2372 days 2%
Jan Menzies 10/10 2372 days 2%
Jenny Mulholland 10/10 2403 days 2%
Charles norris 10/10 2403 days 2%
Lee & Sarah . 10/10 2403 days 2%
Abi Fielder 10/10 2431 days 2%
janny van der Burg 10/10 2431 days 2%
HANNAH BROOKSBANK 10/10 2431 days 2%
Simon Betschart 10/10 2431 days 2%
Yannick 10/10 2462 days 2%
MikeHoncho 10/10 2462 days 2%
Dave Ruijter 10/10 2462 days 2%
Alison Gemrany 10/10 2462 days 2%
AndyDavies 10/10 2493 days 2%
Priscilla 10/10 2523 days 2%
Sarah Jones 10/10 2523 days 2%
Erwin & Dani Matijsen 10/10 2523 days 2%
Alanna Y 10/10 2523 days 2%
Sal Hubert 10/10 2554 days 1%
Mia & Martin 10/10 2554 days 2%
Adam Miller 10/10 2584 days 2%
Joe Kuchman 10/10 2708 days 2%
Ryan & Rita Pierce 10/10 2738 days 2%
Janet Mook 9/10 2769 days 2%
Andy/Robyn Long 10/10 2769 days 2%
Jon Jamie 10/10 2769 days 2%
Erica Bradford 10/10 2797 days 2%
Paulo Dias 10/10 2797 days 2%
Jana Zanetto 10/10 2797 days 2%
David Haines-Hanham 10/10 2803 days 1%
Sally Haines 10/10 2803 days 1%
Katie 10/10 2828 days 2%
Stefanie Summer 10/10 2828 days 2%
seb_lag 9/10 2828 days 2%
Geo 10/10 2828 days 2%
Ineke & Wouter 8/10 2828 days 1%
sally haines-hanham 10/10 2828 days 2%
Marc Greeve 10/10 2836 days 1%
Paul Eaves 10/10 2889 days 1%
Anna Barber 9/10 2889 days 1%
Adam 10/10 2920 days 1%
Rob & Margot 10/10 2950 days 1%
Vikki reeves 10/10 2950 days 1%
Gerard McAuley 10/10 2950 days 1%
Stephanie 10/10 2954 days 1%
Ben Z 10/10 3103 days 1%
GLD 10/10 3134 days 1%
Colin Bond 10/10 3134 days 1%
HandH 10/10 3134 days 1%
Chris Ledwig 10/10 3134 days 1%
joepolog40 10/10 3134 days 1%
titougreg29 10/10 3162 days 1%
Brian 10/10 3162 days 1%
Wibo de Vries 10/10 3162 days 1%
Katie&Mike U 10/10 3162 days 1%
Peg Wooten 10/10 3193 days 1%
Marc Hoskins 10/10 3193 days 1%
Velvette 10/10 3193 days 1%
Stephanie Zellerer 10/10 3193 days 1%
Tina Gehmecker 10/10 3193 days 1%
paulcallanan 10/10 3193 days 1%
Tom Batty 10/10 3193 days 1%
Dave Worthington 10/10 3193 days 1%
Jodie Cronk 10/10 3193 days 1%
Jen&Digs M 10/10 3224 days 1%
Paul Leow 10/10 3224 days 1%
phnz 10/10 3224 days 1%
medellia371 10/10 3254 days 1%
Ihopkin 10/10 3254 days 1%
dan_robyn 10/10 3285 days 1%
erinlongtrail 10/10 3285 days 1%
sal 10/10 3315 days 1%
Horius 10/10 3315 days 1%
kayburns 9/10 3315 days 1%
Funkytiptoe 10/10 3315 days 1%
Christian Fell 10/10 3315 days 1%
aloedriscoll 10/10 3438 days 0%
h schmidt 10/10 3468 days 0%
jensmitty 10/10 3468 days 0%
aubreyfalk 10/10 3468 days 0%
WDC_Oxfam2012 10/10 3468 days 0%
doublesessions 9/10 3499 days 0%
tdean 10/10 3499 days 0%
Ewan 10/10 3499 days 0%
StefanKatie 10/10 3528 days 0%
François 10/10 3559 days 0%
essy 10/10 3590 days 0%
Bkeeping 10/10 3590 days 0%
mandaroni 10/10 3620 days 0%
cioffil 10/10 3651 days 1%
jackmason 10/10 3651 days 1%
greanman 10/10 3651 days 1%
jimmynew7121 10/10 3681 days 1%
lmharwood 10/10 3712 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 PiwiWiwi Campervans experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.59% 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 68 days. The PiwiWiwi Campervans experience has 1 recent ranking. 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 47 days. Adjustments are according to the following table.

Days Adjustment
44 -0.71%
45 -0.73%
46 -0.74%
47 -0.76%
48 -0.77%
49 -0.79%
50 -0.81%

Final Ranking Score

95%

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.