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

228 Valid Reviews

The PiwiWiwi Campervans experience has a total of 233 reviews. There are 228 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 228 valid reviews:

Rating Count Percentage
10/10 211
93%
9/10 15
7%
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%

99.17% Average

The raw data average (mean) for all the PiwiWiwi Campervans valid reviews is 99.17% and is based on 228 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 228 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

99.10%

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
Anneke Togo 10/10 21 days 99.93 100%
Antonia 10/10 113 days 97.98 98%
Charles & Sophie 10/10 113 days 97.98 98%
Tess 10/10 174 days 95.2 95%
Sam 10/10 174 days 95.2 95%
Sarah Creegan 10/10 235 days 91.25 91%
Angela Gray 10/10 235 days 91.25 91%
Matt Linton 10/10 235 days 91.25 91%
Ashleigh Lim 10/10 235 days 91.25 91%
Hartmut 10/10 235 days 91.25 91%
Kevin Merrill 10/10 264 days 88.96 89%
Mark Slaski 10/10 264 days 88.96 89%
Daisy Baish 10/10 264 days 88.96 89%
Emma Hamasaki 9/10 264 days 88.96 89%
Katie OBlock 10/10 264 days 88.96 89%
Markus Salomon 10/10 264 days 88.96 89%
Chris Felicetta 10/10 295 days 86.21 86%
Janet 10/10 295 days 86.21 86%
Phillip H 10/10 295 days 86.21 86%
Tia 10/10 295 days 86.21 86%
Kilolimabravo 10/10 295 days 86.21 86%
Nichole Braase 10/10 295 days 86.21 86%
Sara & Michael 10/10 295 days 86.21 86%
Sally and Davy 10/10 326 days 83.16 83%
M. Nederveen 9/10 326 days 83.16 83%
Melanie 10/10 326 days 83.16 83%
Katie Cooper 10/10 326 days 83.16 83%
Ed & Catherine 9/10 326 days 83.16 83%
Katherine Paschall 10/10 356 days 79.92 80%
Sandra 10/10 356 days 79.92 80%
Rebecca Sutherland 10/10 356 days 79.92 80%
Olga and Evan Patronik 10/10 356 days 79.92 80%
Lore & Sébastien 10/10 356 days 79.92 80%
Scott and Zef 10/10 356 days 79.92 80%
Sophie Van Tol 10/10 387 days 76.27 76%
Maire Peate 10/10 387 days 76.27 76%
Avalon Ridler 10/10 387 days 76.27 76%
Sarah 10/10 387 days 76.27 76%
Jonneke van de Kamp 10/10 387 days 76.27 76%
jess c 10/10 387 days 76.27 76%
John Sivigny 10/10 417 days 72.45 72%
Maureen Clarke 10/10 417 days 72.45 72%
Stephen Hall 10/10 417 days 72.45 72%
Darryl Neo 10/10 540 days 53.79 54%
Harry Newton 10/10 540 days 53.79 54%
Brooke 10/10 540 days 53.79 54%
Felicia and Andy 10/10 570 days 48.68 48%
LB & Michael 10/10 570 days 48.68 48%
Päivi and John Anderson 8/10 570 days 46.24 46%
Matt Linton 10/10 601 days 43.67 43%
Sandy Curry 9/10 601 days 43.67 43%
Scott Browning 10/10 601 days 43.67 43%
Matthijs, Anouk en Mika Smit 10/10 601 days 43.67 43%
Maija Morgenweck 10/10 601 days 43.67 43%
JPliska 10/10 629 days 39.41 39%
Henry Meehan 10/10 629 days 39.41 39%
Zoran 10/10 629 days 39.41 39%
Svea Brömel 10/10 629 days 39.41 39%
Martin and Nikola 10/10 629 days 39.41 39%
John and Barbara 10/10 660 days 34.99 35%
Phillip Hartin 10/10 660 days 34.99 35%
Andrew Borch 10/10 660 days 34.99 35%
Niek and Anne (The Netherlands) 10/10 660 days 34.99 35%
Joash Picard 10/10 691 days 30.86 31%
Carrie 10/10 691 days 30.86 31%
Zoe 10/10 691 days 30.86 31%
Kara & Joash 10/10 691 days 30.86 31%
Marian van Voorn 9/10 691 days 30.86 31%
Amandine 10/10 691 days 30.86 31%
David Aylmore 9/10 721 days 27.17 27%
Saliha Hamici 10/10 721 days 27.17 27%
Sebastian Torfs 10/10 721 days 27.17 27%
Lochoe Mckinnon 10/10 752 days 23.64 23%
Eric 10/10 752 days 23.64 23%
Mia Tranthem 10/10 752 days 23.64 23%
kael Matthews 10/10 752 days 23.64 23%
Sophie Skinner 10/10 752 days 23.64 23%
Eddie 10/10 905 days 10.72 10%
hazel woodhead 10/10 905 days 10.72 10%
Tom Smithwick 10/10 935 days 9.06 9%
Matt 10/10 935 days 9.06 9%
John Sivigny 10/10 935 days 9.06 9%
Lizzie Watts 10/10 935 days 9.06 9%
Jonathan Clay 10/10 966 days 7.64 7%
Marita O'Brien 10/10 966 days 7.64 7%
Jan 9/10 966 days 7.64 7%
Henry 10/10 966 days 7.64 7%
Andy Barlow 10/10 994 days 6.62 6%
kath combes 10/10 994 days 6.62 6%
Roz Lobo 10/10 994 days 6.62 6%
Jorg 10/10 994 days 6.62 6%
Georgia 10/10 994 days 6.62 6%
Joss, Georgia and Stef 10/10 994 days 6.62 6%
petra 10/10 1025 days 5.78 5%
Richard Janes 10/10 1025 days 5.78 5%
Kristel & Tim 10/10 1025 days 5.78 5%
Felix Maliers 10/10 1025 days 5.78 5%
Greg and Syd 9/10 1056 days 5.24 5%
Rebecca Grace 10/10 1056 days 5.24 5%
Julia 9/10 1056 days 5.24 5%
Jonas Himpe 10/10 1086 days 5.01 4%
kohn stephan 10/10 1086 days 5.01 4%
Tim Leary 10/10 1086 days 5.01 4%
Tom Coul 10/10 1086 days 5.01 4%
Kim Verplancke 10/10 1086 days 5.01 4%
Chris Scrimshaw 10/10 1086 days 5.01 4%
Martina & Trev from Switzerland 10/10 1086 days 5.01 4%
Wendy and Vincent 10/10 1117 days 4.96 4%
James N 10/10 1209 days 4.78 4%
Gert van der Lugt 10/10 1331 days 4.54 4%
Stefan Giese 10/10 1331 days 4.54 4%
Hendrik Pschichholtz 10/10 1331 days 4.54 4%
Ray Verbeek 10/10 1331 days 4.54 4%
Andreas Herzog 10/10 1359 days 4.48 4%
Tracy Frauzel 10/10 1367 days true 4.47 4%
michel labrecque 10/10 1390 days 4.42 4%
Garrett South 10/10 1390 days 4.42 4%
Sofia Vadman 10/10 1390 days 4.42 4%
Patricia Pharr-Snyder 10/10 1451 days 4.3 4%
Gabriel Wappler 10/10 1665 days 3.88 3%
Phillip M 10/10 1696 days 3.82 3%
Sarah Considine 10/10 1696 days 3.82 3%
Jack + Jade Hughes 10/10 1696 days 3.82 3%
Gerry Fijal 10/10 1696 days 3.82 3%
Melanie Keller 10/10 1696 days 3.82 3%
Jasper S 10/10 1725 days 3.77 3%
Linc 9/10 1756 days 3.71 3%
Rose Gutekunst 10/10 1756 days 3.71 3%
Marcel Janser 10/10 1756 days 3.71 3%
Vicki Janes 10/10 1787 days 3.65 3%
Ky Phillips 10/10 1848 days 3.53 3%
Taylor Wirth 10/10 1878 days 3.47 3%
Emma Gaylord 10/10 1878 days 3.47 3%
Jean Capron 10/10 2031 days 3.17 3%
Barbara 10/10 2031 days 3.17 3%
Jan Menzies 10/10 2031 days 3.17 3%
Jenny Mulholland 10/10 2062 days 3.11 3%
Charles norris 10/10 2062 days 3.11 3%
Lee & Sarah . 10/10 2062 days 3.11 3%
Abi Fielder 10/10 2090 days 3.05 3%
janny van der Burg 10/10 2090 days 3.05 3%
HANNAH BROOKSBANK 10/10 2090 days 3.05 3%
Simon Betschart 10/10 2090 days 3.05 3%
Yannick 10/10 2121 days 2.99 2%
MikeHoncho 10/10 2121 days 2.99 2%
Dave Ruijter 10/10 2121 days 2.99 2%
Alison Gemrany 10/10 2121 days 2.99 2%
AndyDavies 10/10 2152 days 2.93 2%
Priscilla 10/10 2182 days 2.87 2%
Sarah Jones 10/10 2182 days 2.87 2%
Erwin & Dani Matijsen 10/10 2182 days 2.87 2%
Alanna Y 10/10 2182 days 2.87 2%
Sal Hubert 10/10 2212 days true 2.81 2%
Mia & Martin 10/10 2213 days 2.81 2%
Adam Miller 10/10 2243 days 2.75 2%
Joe Kuchman 10/10 2366 days 2.51 2%
Ryan & Rita Pierce 10/10 2396 days 2.45 2%
Janet Mook 9/10 2427 days 2.39 2%
Andy/Robyn Long 10/10 2427 days 2.39 2%
Jon Jamie 10/10 2427 days 2.39 2%
Erica Bradford 10/10 2455 days 2.34 2%
Paulo Dias 10/10 2455 days 2.34 2%
Jana Zanetto 10/10 2455 days 2.34 2%
David Haines-Hanham 10/10 2461 days true 2.33 2%
Sally Haines 10/10 2461 days true 2.33 2%
Katie 10/10 2486 days 2.28 2%
Stefanie Summer 10/10 2486 days 2.28 2%
seb_lag 9/10 2486 days 2.28 2%
Geo 10/10 2486 days 2.28 2%
Ineke & Wouter 8/10 2486 days 2.16 2%
sally haines-hanham 10/10 2486 days 2.28 2%
Marc Greeve 10/10 2494 days true 2.26 2%
Paul Eaves 10/10 2547 days 2.16 2%
Anna Barber 9/10 2547 days 2.16 2%
Adam 10/10 2578 days 2.1 2%
Rob & Margot 10/10 2608 days 2.04 2%
Vikki reeves 10/10 2608 days 2.04 2%
Gerard McAuley 10/10 2608 days 2.04 2%
Stephanie 10/10 2612 days true 2.03 1%
Ben Z 10/10 2761 days 1.74 1%
GLD 10/10 2792 days 1.68 1%
Colin Bond 10/10 2792 days 1.68 1%
HandH 10/10 2792 days 1.68 1%
Chris Ledwig 10/10 2792 days 1.68 1%
joepolog40 10/10 2792 days 1.68 1%
titougreg29 10/10 2820 days 1.62 1%
Brian 10/10 2820 days 1.62 1%
Wibo de Vries 10/10 2820 days 1.62 1%
Katie&Mike U 10/10 2820 days 1.62 1%
Peg Wooten 10/10 2851 days 1.56 1%
Marc Hoskins 10/10 2851 days 1.56 1%
Velvette 10/10 2851 days 1.56 1%
Stephanie Zellerer 10/10 2851 days 1.56 1%
Tina Gehmecker 10/10 2851 days 1.56 1%
paulcallanan 10/10 2851 days 1.56 1%
Tom Batty 10/10 2851 days 1.56 1%
Dave Worthington 10/10 2851 days 1.56 1%
Jodie Cronk 10/10 2851 days 1.56 1%
Jen&Digs M 10/10 2882 days 1.5 1%
Paul Leow 10/10 2882 days 1.5 1%
phnz 10/10 2882 days 1.5 1%
medellia371 10/10 2912 days 1.44 1%
Ihopkin 10/10 2912 days 1.44 1%
dan_robyn 10/10 2943 days 1.38 1%
erinlongtrail 10/10 2943 days 1.38 1%
sal 10/10 2973 days 1.32 1%
Horius 10/10 2973 days 1.32 1%
kayburns 9/10 2973 days 1.32 1%
Funkytiptoe 10/10 2973 days 1.32 1%
Christian Fell 10/10 2973 days 1.32 1%
aloedriscoll 10/10 3096 days 1.08 1%
h schmidt 10/10 3126 days 1.03 0%
jensmitty 10/10 3126 days 1.03 0%
aubreyfalk 10/10 3126 days 1.03 0%
WDC_Oxfam2012 10/10 3126 days 1.03 0%
doublesessions 9/10 3157 days 0.96 0%
tdean 10/10 3157 days 0.96 0%
Ewan 10/10 3157 days 0.96 0%
StefanKatie 10/10 3186 days 0.91 0%
François 10/10 3217 days 0.85 0%
essy 10/10 3248 days 0.79 0%
Bkeeping 10/10 3248 days 0.79 0%
mandaroni 10/10 3278 days 0.73 0%
cioffil 10/10 3309 days 0.67 0%
jackmason 10/10 3309 days 0.67 0%
greanman 10/10 3309 days 0.67 0%
jimmynew7121 10/10 3339 days 0.61 0%
lmharwood 10/10 3370 days 0.55 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

-1.61% 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 55 days. The PiwiWiwi Campervans experience has 3 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 6 days. Adjustments are according to the following table.

Days Adjustment
3 -0.06%
4 -0.07%
5 -0.09%
6 -0.11%
7 -0.13%
8 -0.15%
9 -0.17%

Final Ranking Score

97%

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.