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 Waitomo TOP 10 Holiday Park.

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

Waitomo TOP 10 Holiday Park

Valid Reviews

93 Valid Reviews

The Waitomo TOP 10 Holiday Park experience has a total of 94 reviews. There are 93 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 93 valid reviews:

Rating Count Percentage
10/10 28
30%
9/10 27
29%
8/10 27
29%
7/10 7
8%
6/10 1
1%
5/10 1
1%
4/10 0
0%
3/10 1
1%
2/10 1
1%
1/10 0
0%

86.45% Average

The raw data average (mean) for all the Waitomo TOP 10 Holiday Park valid reviews is 86.45% and is based on 93 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

48 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 93 valid reviews, the experience has 48 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 48 face-to-face reviews:

Rating Count Percentage
10/10 14
29%
9/10 16
33%
8/10 14
29%
7/10 4
8%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

88.33% Average

The raw data average (mean) for all the Waitomo TOP 10 Holiday Park face-to-face reviews is 88.33% and is based on 48 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

82.74%

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
Grumpster 10/10 457 days 66.91 100%
Scooper 8/10 549 days 49.63 74%
Amy Alexander 8/10 579 days 44.83 67%
Megan 7/10 579 days 42.94 64%
Jgcanada 10/10 638 days 38.09 57%
R James 2/10 730 days 19.58 29%
Deb S 7/10 761 days 20.64 31%
Lee 10/10 791 days 19.64 29%
Nadene Wheatley 9/10 1105 days 4.98 7%
Liz K 8/10 1379 days 4.22 6%
Scott O'Donnell 9/10 1398 days 4.41 7%
Geoffrey Brogden 9/10 1398 days 4.41 7%
lemennais perrine 8/10 1398 days 4.19 6%
Lavina Kerki 8/10 1402 days 4.18 6%
Susi Sorglos 3/10 1429 days 3.35 5%
Luke Young 8/10 1529 days 3.94 6%
Phillippa McLernon 9/10 1713 days 3.79 6%
Rainer Welsch 5/10 1765 days 2.99 4%
Jamie 9/10 1804 days 3.61 5%
Suzanne Vermeulen 6/10 1856 days 2.91 4%
Jacqui 9/10 1864 days 3.5 5%
Emma Keegan 8/10 2039 days 3.0 4%
Nicky Hurst 10/10 2056 days 3.12 5%
Tineke Verschueren 9/10 2065 days 3.1 5%
Andrew Jones 8/10 2070 days 2.94 4%
Florian Kleemann 7/10 2085 days 2.79 4%
Laurie 10/10 2098 days 3.04 5%
Stephen McNair 8/10 2129 days 2.83 4%
holidaymad from Solihull 9/10 2129 days 2.98 4%
Neville Smith 8/10 2251 days 2.6 4%
Richard 9/10 2314 days 2.61 4%
Family Trip 9/10 2436 days 2.38 4%
Glenda 10/10 2464 days 2.32 3%
Jake Bell 10/10 2495 days 2.26 3%
Paul Wood 8/10 2526 days 2.09 3%
Ut & Sacha 10/10 2587 days 2.08 3%
Kathy Hart 10/10 2740 days 1.78 3%
Andrew Pearce 10/10 2860 days 1.55 2%
Hanneke P 8/10 2860 days 1.47 2%
David Restell 8/10 2860 days 1.47 2%
Wouter Trumpie 7/10 2880 days true 1.37 2%
Stephan Olivier 8/10 2895 days true 1.4 2%
Stephan Olivier 8/10 2895 days true 1.4 2%
Fam von Hattem 8/10 2903 days true 1.39 2%
Huw Davies 8/10 3141 days true 0.95 1%
Rob Klauer 8/10 3154 days true 0.92 1%
Ed Trucie 9/10 3161 days true 0.96 1%
Peter Dellen 9/10 3178 days true 0.92 1%
Deana Peters 8/10 3178 days true 0.88 1%
Peter Putz 9/10 3180 days true 0.92 1%
Liz Stokes 9/10 3182 days true 0.92 1%
Scott Simpson 10/10 3183 days true 0.91 1%
Johannes & Katrin 9/10 3194 days true 0.89 1%
Fabienne Indergand 10/10 3261 days true 0.76 1%
Benjamin Meier 8/10 3272 days true 0.7 1%
Waldemar Schuler 10/10 3273 days true 0.74 1%
Anne Quehe 9/10 3273 days true 0.74 1%
Tacksharp 10/10 3410 days 0.47 1%
Ralph & Marloes Meyers 9/10 3500 days true 0.29 0%
lyndavid 10/10 3501 days 0.29 0%
Rens Hemselmans 8/10 3518 days true 0.25 0%
J Palmer 9/10 3524 days true 0.25 0%
Liz & Jim 10/10 3526 days true 0.24 0%
Omar Candon 10/10 3533 days true 0.23 0%
Annelie & Martin 9/10 3536 days true 0.22 0%
Tobias Torax 10/10 3547 days true 0.2 0%
Tayler Gray 9/10 3547 days true 0.2 0%
Stefan Morris 8/10 3551 days true 0.18 0%
Theo Dykhuizen 10/10 3555 days true 0.19 0%
Fred 8/10 3560 days true 0.17 0%
Carl_Larsen 10/10 3836 days 0.0 0%
AlisonB 10/10 3866 days 0.0 0%
lindam 10/10 3866 days true 0.0 0%
marisraneth 9/10 3866 days true 0.0 0%
Denecke Thorsten 9/10 3906 days true 0.0 0%
Tim Stick 8/10 3911 days true 0.0 0%
Mathias Skov 8/10 3911 days true 0.0 0%
Daryl Taylor 10/10 3918 days true 0.0 0%
Susan 10/10 3921 days true 0.0 0%
Carolina Gonzalez 10/10 3923 days true 0.0 0%
joannaw 8/10 3972 days true 0.0 0%
pimn 9/10 3981 days true 0.0 0%
GoodTimes 9/10 3987 days 0.0 0%
Furger 10/10 3989 days true 0.0 0%
jank 9/10 4078 days true 0.0 0%
clairet 7/10 4096 days true 0.0 0%
Donna 10/10 4142 days true 0.0 0%
michellew 10/10 4179 days true 0.0 0%
KatieR 9/10 4229 days true 0.0 0%
Steve Harper 7/10 4238 days true 0.0 0%
NicoleG 9/10 4264 days true 0.0 0%
Grimm 8/10 4278 days true 0.0 0%
Chris 7/10 4280 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 Waitomo TOP 10 Holiday Park experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.85% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 50 days. However the Waitomo TOP 10 Holiday Park 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.

The Waitomo TOP 10 Holiday Park experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -3.80%
198 -3.82%
199 -3.83%
200 -3.85%
201 -3.87%
202 -3.89%
203 -3.91%

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.