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

231 Valid Reviews

The PiwiWiwi Campervans experience has a total of 236 reviews. There are 231 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 231 valid reviews:

Rating Count Percentage
10/10 214
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%

99.18% Average

The raw data average (mean) for all the PiwiWiwi Campervans valid reviews is 99.18% and is based on 231 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 231 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

99.16%

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
Lee Beever 10/10 25 days 99.9 100%
Anneke Togo 10/10 56 days 99.5 100%
Lynne and Julie 10/10 56 days 99.5 100%
Lucy Evans 10/10 56 days 99.5 100%
Antonia 10/10 148 days 96.53 97%
Charles & Sophie 10/10 148 days 96.53 97%
Tess 10/10 209 days 93.08 93%
Sam 10/10 209 days 93.08 93%
Sarah Creegan 10/10 270 days 88.45 88%
Angela Gray 10/10 270 days 88.45 88%
Matt Linton 10/10 270 days 88.45 88%
Ashleigh Lim 10/10 270 days 88.45 88%
Hartmut 10/10 270 days 88.45 88%
Kevin Merrill 10/10 299 days 85.83 86%
Mark Slaski 10/10 299 days 85.83 86%
Daisy Baish 10/10 299 days 85.83 86%
Emma Hamasaki 9/10 299 days 85.83 86%
Katie OBlock 10/10 299 days 85.83 86%
Markus Salomon 10/10 299 days 85.83 86%
Chris Felicetta 10/10 330 days 82.74 83%
Janet 10/10 330 days 82.74 83%
Phillip H 10/10 330 days 82.74 83%
Tia 10/10 330 days 82.74 83%
Kilolimabravo 10/10 330 days 82.74 83%
Nichole Braase 10/10 330 days 82.74 83%
Sara & Michael 10/10 330 days 82.74 83%
Sally and Davy 10/10 361 days 79.35 79%
M. Nederveen 9/10 361 days 79.35 79%
Melanie 10/10 361 days 79.35 79%
Katie Cooper 10/10 361 days 79.35 79%
Ed & Catherine 9/10 361 days 79.35 79%
Katherine Paschall 10/10 390 days 75.9 76%
Sandra 10/10 391 days 75.77 76%
Rebecca Sutherland 10/10 391 days 75.77 76%
Olga and Evan Patronik 10/10 391 days 75.77 76%
Lore & Sébastien 10/10 391 days 75.77 76%
Scott and Zef 10/10 391 days 75.77 76%
Sophie Van Tol 10/10 421 days 71.91 72%
Maire Peate 10/10 422 days 71.78 72%
Avalon Ridler 10/10 422 days 71.78 72%
Sarah 10/10 422 days 71.78 72%
Jonneke van de Kamp 10/10 422 days 71.78 72%
jess c 10/10 422 days 71.78 72%
John Sivigny 10/10 452 days 67.63 68%
Maureen Clarke 10/10 452 days 67.63 68%
Stephen Hall 10/10 452 days 67.63 68%
Darryl Neo 10/10 575 days 47.85 48%
Harry Newton 10/10 575 days 47.85 48%
Brooke 10/10 575 days 47.85 48%
Felicia and Andy 10/10 605 days 43.05 43%
LB & Michael 10/10 605 days 43.05 43%
Päivi and John Anderson 8/10 605 days 40.89 41%
Matt Linton 10/10 636 days 38.39 38%
Sandy Curry 9/10 636 days 38.39 38%
Scott Browning 10/10 636 days 38.39 38%
Matthijs, Anouk en Mika Smit 10/10 636 days 38.39 38%
Maija Morgenweck 10/10 636 days 38.39 38%
JPliska 10/10 664 days 34.44 34%
Henry Meehan 10/10 664 days 34.44 34%
Zoran 10/10 664 days 34.44 34%
Svea Brömel 10/10 664 days 34.44 34%
Martin and Nikola 10/10 664 days 34.44 34%
John and Barbara 10/10 695 days 30.35 30%
Phillip Hartin 10/10 695 days 30.35 30%
Andrew Borch 10/10 695 days 30.35 30%
Niek and Anne (The Netherlands) 10/10 695 days 30.35 30%
Joash Picard 10/10 725 days 26.69 26%
Carrie 10/10 726 days 26.58 26%
Zoe 10/10 726 days 26.58 26%
Kara & Joash 10/10 726 days 26.58 26%
Marian van Voorn 9/10 726 days 26.58 26%
Amandine 10/10 726 days 26.58 26%
David Aylmore 9/10 755 days 23.32 23%
Saliha Hamici 10/10 756 days 23.21 23%
Sebastian Torfs 10/10 756 days 23.21 23%
Lochoe Mckinnon 10/10 786 days 20.13 20%
Eric 10/10 787 days 20.03 20%
Mia Tranthem 10/10 787 days 20.03 20%
kael Matthews 10/10 787 days 20.03 20%
Sophie Skinner 10/10 787 days 20.03 20%
Eddie 10/10 940 days 8.81 8%
hazel woodhead 10/10 940 days 8.81 8%
Tom Smithwick 10/10 969 days 7.52 7%
Matt 10/10 970 days 7.48 7%
John Sivigny 10/10 970 days 7.48 7%
Lizzie Watts 10/10 970 days 7.48 7%
Jonathan Clay 10/10 1001 days 6.4 6%
Marita O'Brien 10/10 1001 days 6.4 6%
Jan 9/10 1001 days 6.4 6%
Henry 10/10 1001 days 6.4 6%
Andy Barlow 10/10 1029 days 5.69 5%
kath combes 10/10 1029 days 5.69 5%
Roz Lobo 10/10 1029 days 5.69 5%
Jorg 10/10 1029 days 5.69 5%
Georgia 10/10 1029 days 5.69 5%
Joss, Georgia and Stef 10/10 1029 days 5.69 5%
petra 10/10 1059 days 5.21 5%
Richard Janes 10/10 1059 days 5.21 5%
Kristel & Tim 10/10 1059 days 5.21 5%
Felix Maliers 10/10 1060 days 5.19 5%
Greg and Syd 9/10 1090 days 5.0 5%
Rebecca Grace 10/10 1090 days 5.0 5%
Julia 9/10 1091 days 5.0 5%
Jonas Himpe 10/10 1120 days 4.95 4%
kohn stephan 10/10 1120 days 4.95 4%
Tim Leary 10/10 1120 days 4.95 4%
Tom Coul 10/10 1120 days 4.95 4%
Kim Verplancke 10/10 1120 days 4.95 4%
Chris Scrimshaw 10/10 1120 days 4.95 4%
Martina & Trev from Switzerland 10/10 1121 days 4.95 4%
Wendy and Vincent 10/10 1151 days 4.89 4%
James N 10/10 1243 days 4.71 4%
Gert van der Lugt 10/10 1365 days 4.47 4%
Stefan Giese 10/10 1365 days 4.47 4%
Hendrik Pschichholtz 10/10 1365 days 4.47 4%
Ray Verbeek 10/10 1365 days 4.47 4%
Andreas Herzog 10/10 1393 days 4.42 4%
Tracy Frauzel 10/10 1402 days true 4.4 4%
michel labrecque 10/10 1424 days 4.36 4%
Garrett South 10/10 1424 days 4.36 4%
Sofia Vadman 10/10 1424 days 4.36 4%
Patricia Pharr-Snyder 10/10 1485 days 4.24 4%
Gabriel Wappler 10/10 1699 days 3.82 3%
Phillip M 10/10 1730 days 3.76 3%
Sarah Considine 10/10 1730 days 3.76 3%
Jack + Jade Hughes 10/10 1730 days 3.76 3%
Gerry Fijal 10/10 1730 days 3.76 3%
Melanie Keller 10/10 1730 days 3.76 3%
Jasper S 10/10 1759 days 3.7 3%
Linc 9/10 1790 days 3.64 3%
Rose Gutekunst 10/10 1790 days 3.64 3%
Marcel Janser 10/10 1790 days 3.64 3%
Vicki Janes 10/10 1821 days 3.58 3%
Ky Phillips 10/10 1883 days 3.46 3%
Taylor Wirth 10/10 1912 days 3.4 3%
Emma Gaylord 10/10 1912 days 3.4 3%
Jean Capron 10/10 2065 days 3.1 3%
Barbara 10/10 2065 days 3.1 3%
Jan Menzies 10/10 2065 days 3.1 3%
Jenny Mulholland 10/10 2096 days 3.04 3%
Charles norris 10/10 2096 days 3.04 3%
Lee & Sarah . 10/10 2096 days 3.04 3%
Abi Fielder 10/10 2124 days 2.99 3%
janny van der Burg 10/10 2124 days 2.99 3%
HANNAH BROOKSBANK 10/10 2124 days 2.99 3%
Simon Betschart 10/10 2124 days 2.99 3%
Yannick 10/10 2155 days 2.93 2%
MikeHoncho 10/10 2155 days 2.93 2%
Dave Ruijter 10/10 2155 days 2.93 2%
Alison Gemrany 10/10 2155 days 2.93 2%
AndyDavies 10/10 2186 days 2.86 2%
Priscilla 10/10 2216 days 2.81 2%
Sarah Jones 10/10 2216 days 2.81 2%
Erwin & Dani Matijsen 10/10 2216 days 2.81 2%
Alanna Y 10/10 2216 days 2.81 2%
Sal Hubert 10/10 2247 days true 2.75 2%
Mia & Martin 10/10 2247 days 2.75 2%
Adam Miller 10/10 2277 days 2.69 2%
Joe Kuchman 10/10 2401 days 2.44 2%
Ryan & Rita Pierce 10/10 2431 days 2.39 2%
Janet Mook 9/10 2462 days 2.32 2%
Andy/Robyn Long 10/10 2462 days 2.32 2%
Jon Jamie 10/10 2462 days 2.32 2%
Erica Bradford 10/10 2490 days 2.27 2%
Paulo Dias 10/10 2490 days 2.27 2%
Jana Zanetto 10/10 2490 days 2.27 2%
David Haines-Hanham 10/10 2496 days true 2.26 2%
Sally Haines 10/10 2496 days true 2.26 2%
Katie 10/10 2521 days 2.21 2%
Stefanie Summer 10/10 2521 days 2.21 2%
seb_lag 9/10 2521 days 2.21 2%
Geo 10/10 2521 days 2.21 2%
Ineke & Wouter 8/10 2521 days 2.1 2%
sally haines-hanham 10/10 2521 days 2.21 2%
Marc Greeve 10/10 2529 days true 2.19 2%
Paul Eaves 10/10 2582 days 2.09 2%
Anna Barber 9/10 2582 days 2.09 2%
Adam 10/10 2613 days 2.03 2%
Rob & Margot 10/10 2643 days 1.97 1%
Vikki reeves 10/10 2643 days 1.97 1%
Gerard McAuley 10/10 2643 days 1.97 1%
Stephanie 10/10 2647 days true 1.96 1%
Ben Z 10/10 2796 days 1.67 1%
GLD 10/10 2827 days 1.61 1%
Colin Bond 10/10 2827 days 1.61 1%
HandH 10/10 2827 days 1.61 1%
Chris Ledwig 10/10 2827 days 1.61 1%
joepolog40 10/10 2827 days 1.61 1%
titougreg29 10/10 2855 days 1.56 1%
Brian 10/10 2855 days 1.56 1%
Wibo de Vries 10/10 2855 days 1.56 1%
Katie&Mike U 10/10 2855 days 1.56 1%
Peg Wooten 10/10 2886 days 1.5 1%
Marc Hoskins 10/10 2886 days 1.5 1%
Velvette 10/10 2886 days 1.5 1%
Stephanie Zellerer 10/10 2886 days 1.5 1%
Tina Gehmecker 10/10 2886 days 1.5 1%
paulcallanan 10/10 2886 days 1.5 1%
Tom Batty 10/10 2886 days 1.5 1%
Dave Worthington 10/10 2886 days 1.5 1%
Jodie Cronk 10/10 2886 days 1.5 1%
Jen&Digs M 10/10 2917 days 1.43 1%
Paul Leow 10/10 2917 days 1.43 1%
phnz 10/10 2917 days 1.43 1%
medellia371 10/10 2947 days 1.38 1%
Ihopkin 10/10 2947 days 1.38 1%
dan_robyn 10/10 2978 days 1.32 1%
erinlongtrail 10/10 2978 days 1.32 1%
sal 10/10 3008 days 1.26 1%
Horius 10/10 3008 days 1.26 1%
kayburns 9/10 3008 days 1.26 1%
Funkytiptoe 10/10 3008 days 1.26 1%
Christian Fell 10/10 3008 days 1.26 1%
aloedriscoll 10/10 3131 days 1.02 1%
h schmidt 10/10 3161 days 0.96 0%
jensmitty 10/10 3161 days 0.96 0%
aubreyfalk 10/10 3161 days 0.96 0%
WDC_Oxfam2012 10/10 3161 days 0.96 0%
doublesessions 9/10 3192 days 0.9 0%
tdean 10/10 3192 days 0.9 0%
Ewan 10/10 3192 days 0.9 0%
StefanKatie 10/10 3221 days 0.84 0%
François 10/10 3252 days 0.78 0%
essy 10/10 3283 days 0.72 0%
Bkeeping 10/10 3283 days 0.72 0%
mandaroni 10/10 3313 days 0.66 0%
cioffil 10/10 3344 days 0.6 0%
jackmason 10/10 3344 days 0.6 0%
greanman 10/10 3344 days 0.6 0%
jimmynew7121 10/10 3374 days 0.54 0%
lmharwood 10/10 3405 days 0.48 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

-0.99% 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 43 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 16 days. Adjustments are according to the following table.

Days Adjustment
13 -0.26%
14 -0.28%
15 -0.30%
16 -0.33%
17 -0.35%
18 -0.37%
19 -0.39%

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.