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 Whakarewarewa.

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

Whakarewarewa

Valid Reviews

177 Valid Reviews

The Whakarewarewa experience has a total of 178 reviews. There are 177 valid reviews that are included when calculating the ranking score and 1 invalid review 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 177 valid reviews:

Rating Count Percentage
10/10 26
15%
9/10 32
18%
8/10 53
30%
7/10 37
21%
6/10 14
8%
5/10 6
3%
4/10 3
2%
3/10 3
2%
2/10 2
1%
1/10 1
1%

77.46% Average

The raw data average (mean) for all the Whakarewarewa valid reviews is 77.46% and is based on 177 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

169 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 177 valid reviews, the experience has 169 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 169 face-to-face reviews:

Rating Count Percentage
10/10 24
14%
9/10 31
18%
8/10 51
30%
7/10 35
21%
6/10 14
8%
5/10 6
4%
4/10 3
2%
3/10 2
1%
2/10 2
1%
1/10 1
1%

77.46% Average

The raw data average (mean) for all the Whakarewarewa face-to-face reviews is 77.46% and is based on 169 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

83.30%

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
Amy Lord 10/10 753 days true 23.53 100%
Chloe B 8/10 776 days 20.07 85%
Richard 10/10 832 days true 15.96 68%
Anis Quentin 9/10 841 days true 15.22 65%
Dorthe Soeholm 9/10 1113 days true 4.96 21%
Theerada Wongkaew 10/10 1152 days true 4.89 21%
Joonas Lehtomaki 9/10 1157 days true 4.88 21%
Jonathan Verschuuren 8/10 1158 days true 4.63 20%
Laura David 9/10 1160 days true 4.87 21%
Michael 10/10 1161 days true 4.87 21%
Anne 8/10 1161 days true 4.63 20%
Heyuuiutha Lokithas 7/10 1163 days true 4.43 19%
Philip Sheridan 7/10 1169 days true 4.42 19%
Sandra Reynders 8/10 1170 days true 4.61 20%
Colin George 10/10 1171 days true 4.85 21%
Alexandra Luerner 10/10 1173 days true 4.85 21%
Frank Bien 10/10 1173 days true 4.85 21%
Felicity Ford 7/10 1174 days true 4.41 19%
Louis Nilsson 10/10 1179 days true 4.84 21%
Gilbert Baptiste 6/10 1179 days true 4.01 17%
Emilie Bavard 6/10 1179 days true 4.01 17%
Barbara 10/10 1188 days true 4.82 20%
Paul Tysoe 8/10 1196 days true 4.56 19%
Jessica Nasstrom 6/10 1202 days true 3.98 17%
ben carroll 10/10 1202 days 4.79 20%
Eveline 8/10 1212 days true 4.53 19%
Henry Ang 7/10 1263 days 4.25 18%
Michelle Smit 9/10 1325 days 4.55 19%
Gesa Roemer 4/10 1424 days true 3.44 15%
Gerbrand Smidt 9/10 1431 days true 4.34 18%
Silvia 5/10 1434 days true 3.51 15%
Jennifer Nguyen 8/10 1442 days true 4.1 17%
Robin Stamm 8/10 1442 days true 4.1 17%
Jonathan Foskett 6/10 1443 days true 3.58 15%
Clara Guinard 7/10 1445 days true 3.93 17%
Hannes 9/10 1446 days true 4.31 18%
John and Jan 9/10 1450 days true 4.31 18%
Adrienne Hoet 6/10 1451 days true 3.57 15%
Benoit Leclerc 7/10 1463 days true 3.89 17%
Raul Ellermann 6/10 1468 days true 3.54 15%
Catharina Cuntz 6/10 1483 days true 3.52 15%
Klaas Huis 8/10 1484 days true 4.03 17%
Maxima Buisan 7/10 1489 days true 3.85 16%
Niels Hoogendooen 6/10 1491 days true 3.51 15%
Martina 9/10 1498 days true 4.21 18%
Martin Bakker 9/10 1526 days true 4.16 18%
Elisabeth Ringswandl 9/10 1802 days true 3.62 15%
Thomas Haslbeck 8/10 1802 days true 3.44 15%
Miriam Burchartz 10/10 1803 days true 3.61 15%
Leonie Jennings 9/10 1847 days true 3.53 15%
Trevor Wichman 8/10 1847 days true 3.35 14%
Sibylle and Nadine 9/10 1895 days true 3.43 15%
Anne Courtenay 8/10 2186 days true 2.72 12%
Friederike Kranzin 10/10 2186 days true 2.86 12%
Amanda 9/10 2189 days true 2.86 12%
Derek 8/10 2189 days true 2.72 12%
Juliane 10/10 2191 days true 2.86 12%
Hannah 8/10 2191 days true 2.71 12%
Dan Lawson 10/10 2219 days true 2.8 12%
Henry Thiel 3/10 2219 days true 2.16 9%
Sina Sacranie 10/10 2219 days true 2.8 12%
Julia Bonisch 8/10 2222 days true 2.65 11%
Rupert 9/10 2233 days true 2.77 12%
Dupont 7/10 2550 days true 1.96 8%
David Lee 8/10 2556 days true 2.03 9%
Henrik Steinruecken 6/10 2616 days true 1.68 7%
Wenmechers 8/10 2624 days true 1.91 8%
Martin Thomas 9/10 2626 days true 2.0 9%
Paul Lawrence 8/10 2632 days true 1.89 8%
Gary Brooks 8/10 2634 days true 1.89 8%
Marian 7/10 2636 days true 1.81 8%
Adam Hassan 9/10 2639 days true 1.98 8%
Gerard van de Ven 9/10 2639 days true 1.98 8%
Lutz Huuemorder 8/10 2640 days true 1.88 8%
Julie Lamart 9/10 2643 days true 1.97 8%
Shannon Taylor 7/10 2643 days true 1.79 8%
Kerstin 8/10 2649 days true 1.86 8%
Denny 10/10 2756 days 1.75 7%
Petr Stepanek 10/10 2901 days true 1.47 6%
Sebastian Hol 5/10 2905 days true 1.18 5%
Jochem Snyders 9/10 2912 days true 1.44 6%
Vitek 8/10 2913 days true 1.37 6%
Daniel 7/10 2913 days true 1.31 6%
Carolin Haas 5/10 2919 days true 1.16 5%
Pierre Boulanger 9/10 2921 days true 1.43 6%
Dave Simpson 7/10 2923 days true 1.29 6%
Monica 10/10 2924 days true 1.42 6%
Mags Adams 9/10 2924 days true 1.42 6%
Hardy 10/10 2924 days true 1.42 6%
Nelly & Lisa 8/10 2925 days true 1.35 6%
Lepied 7/10 2925 days true 1.29 5%
Graeme E 9/10 2929 days true 1.41 6%
Colin Philpott 9/10 2931 days true 1.41 6%
Kim Thorsted 7/10 2932 days true 1.28 5%
R Laurysen 7/10 2935 days true 1.27 5%
Corv V D Hof 8/10 2935 days true 1.33 6%
Anika 7/10 2937 days true 1.27 5%
Lilja Bjork Hermannsdottir 9/10 2937 days true 1.4 6%
Remy van Heugten 6/10 2937 days true 1.16 5%
Stefan Roehrbein 8/10 2938 days true 1.32 6%
J Knol 8/10 2964 days true 1.28 5%
Niels Daubjerg 9/10 3001 days true 1.27 5%
Peter, Noelle & Susanne 7/10 3003 days true 1.15 5%
Rebecca & Hugh Small 5/10 3010 days true 1.01 4%
David & Mary-Jane Ryder 9/10 3012 days true 1.25 5%
Caroline 8/10 3014 days true 1.18 5%
Erik Folkersen 8/10 3014 days true 1.18 5%
Wolfgang Goggel 10/10 3014 days true 1.24 5%
Leif Sorensen 8/10 3014 days true 1.18 5%
Andy Lever 8/10 3015 days true 1.18 5%
Rudy Witt 7/10 3016 days true 1.13 5%
Matthys van den Heuuel 7/10 3020 days true 1.12 5%
Robin van der Linden 8/10 3226 days true 0.79 3%
Petra 10/10 3238 days true 0.81 3%
Karin & Bastiaan 8/10 3239 days true 0.76 3%
Kris Gijbels 9/10 3253 days true 0.78 3%
Danielle 6/10 3253 days true 0.64 3%
Nathalie 3/10 3259 days true 0.59 3%
Nicola Thackray 8/10 3262 days true 0.72 3%
Strieson 7/10 3276 days true 0.67 3%
Ini & Cees 7/10 3277 days true 0.66 3%
Peter 7/10 3280 days true 0.66 3%
Mark Leeuwenburgh 8/10 3280 days true 0.69 3%
Angela 9/10 3291 days true 0.7 3%
Eva Weichs 7/10 3293 days true 0.64 3%
Nicole 5/10 3294 days true 0.56 2%
Rossiter 9/10 3296 days true 0.69 3%
Derek Woodward 10/10 3297 days true 0.69 3%
Elinor Bell 1/10 3298 days true 0.5 2%
Robin Schomburg 10/10 3300 days true 0.68 3%
Katrin & Mark 7/10 3303 days true 0.62 3%
Claudia 8/10 3567 days true 0.15 1%
krisevelyn 4/10 3579 days true 0.11 0%
Richard Spore 9/10 3627 days true 0.05 0%
Mike Peirce 8/10 3634 days true 0.03 0%
Venot 8/10 3643 days true 0.01 0%
Christen Hans 4/10 3654 days true 0.0 0%
Jamie Hallifax 8/10 3659 days true 0.0 0%
Emily Walters 8/10 3666 days true 0.0 0%
Ines Diana 5/10 3667 days true 0.0 0%
Wolfgang G 10/10 3674 days true 0.0 0%
mariekef 8/10 3714 days true 0.0 0%
selinab 7/10 3723 days true 0.0 0%
Peter Essink 7/10 3732 days true 0.0 0%
Karin Linder 8/10 3734 days true 0.0 0%
Helen Pet 8/10 3738 days true 0.0 0%
Richard Kesteleyn 2/10 3738 days true 0.0 0%
Solveig Mosinski 8/10 3742 days true 0.0 0%
Christine Van Den Berg Michele Imbach 10/10 3753 days true 0.0 0%
Wim Put 8/10 3756 days true 0.0 0%
eowyn2k 3/10 3760 days 0.0 0%
skorn 7/10 3854 days true 0.0 0%
SSheil 7/10 3962 days true 0.0 0%
UlaR 10/10 3966 days true 0.0 0%
straw64 8/10 3974 days 0.0 0%
dieteru 8/10 3974 days true 0.0 0%
Sarah_rae 8/10 3990 days true 0.0 0%
Gerd Hebbel 6/10 3990 days true 0.0 0%
Mick 7/10 3990 days true 0.0 0%
Jasmin 9/10 4004 days true 0.0 0%
Stefau 7/10 4004 days true 0.0 0%
MrHebbard 6/10 4007 days true 0.0 0%
siemen 2/10 4015 days true 0.0 0%
Van Dam 7/10 4036 days true 0.0 0%
Gunhild 8/10 4038 days true 0.0 0%
Oliver 8/10 4038 days true 0.0 0%
Pavol 8/10 4038 days true 0.0 0%
KTinga 8/10 4045 days true 0.0 0%
Michael 8/10 4054 days true 0.0 0%
Gerits 7/10 4086 days true 0.0 0%
Sluijs 7/10 4091 days true 0.0 0%
Inga 6/10 4099 days true 0.0 0%
Nadia 7/10 4107 days true 0.0 0%
Naomi Horton 7/10 4367 days true 0.0 0%
Roger Repolusk 7/10 4371 days true 0.0 0%
Lena1 7/10 4374 days 0.0 0%
Vaclaf 8/10 4385 days true 0.0 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 Whakarewarewa experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.98% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Whakarewarewa experience does not meet the criteria for any adjustment.

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 199 days.

The Whakarewarewa experience has been adjusted for 199 days. Adjustments are according to the following table.

Days Adjustment
196 -3.92%
197 -3.94%
198 -3.96%
199 -3.98%
200 -4.00%
201 -4.02%
202 -4.04%

Final Ranking Score

79%

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.