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 Cougar Line.

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

Cougar Line

Valid Reviews

83 Valid Reviews

The Cougar Line experience has a total of 87 reviews. There are 83 valid reviews that are included when calculating the ranking score and 4 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 83 valid reviews:

Rating Count Percentage
10/10 52
63%
9/10 15
18%
8/10 11
13%
7/10 2
2%
6/10 0
0%
5/10 1
1%
4/10 1
1%
3/10 0
0%
2/10 0
0%
1/10 1
1%

92.41% Average

The raw data average (mean) for all the Cougar Line valid reviews is 92.41% and is based on 83 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

31 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 83 valid reviews, the experience has 31 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 31 face-to-face reviews:

Rating Count Percentage
10/10 5
16%
9/10 13
42%
8/10 9
29%
7/10 2
6%
6/10 0
0%
5/10 1
3%
4/10 1
3%
3/10 0
0%
2/10 0
0%
1/10 0
0%

84.52% Average

The raw data average (mean) for all the Cougar Line face-to-face reviews is 84.52% and is based on 31 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

94.94%

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
nzthrillseekers 10/10 351 days 80.48 100%
Sandra Wilson 10/10 382 days 76.88 95%
Wolfgang 9/10 635 days true 46.24 57%
Robyn Hallowell 9/10 993 days true 7.98 9%
Polly Foster 10/10 1235 days 4.81 5%
Ben and Morgane 9/10 1300 days true 5.66 6%
Simon L 10/10 1631 days 4.27 4%
Anthony Richards 10/10 1690 days 4.18 4%
Yana W. 10/10 1721 days 4.14 4%
James Wilson 10/10 1782 days 4.06 4%
Shirley Piggott 10/10 1935 days 3.85 4%
Howie Weir 8/10 2024 days 3.73 4%
Nadine 8/10 2068 days true 4.4 4%
Sian Harries 10/10 2086 days 3.64 3%
Sasha and Sandra Bonavia 9/10 2086 days true 4.37 4%
Denise Albrecht 10/10 2090 days true 4.36 4%
svenanka 10/10 2116 days 3.6 3%
fayedoig 10/10 2330 days 3.31 3%
voyager64 10/10 2330 days 3.31 3%
Jonathan Tuthill 9/10 2346 days true 3.94 4%
EmmaNewman 10/10 2361 days 3.27 3%
Hiro1403 9/10 2361 days 3.27 3%
RichardClough 10/10 2421 days 3.18 3%
Michelle 10/10 2421 days 3.18 3%
jennyhuckstep 10/10 2421 days 3.18 3%
AnneGrange 10/10 2421 days 3.18 3%
Rhi 10/10 2421 days 3.18 3%
kainga 10/10 2421 days 3.18 3%
skphilpott 1/10 2452 days 2.67 2%
Cornelia & Josef 9/10 2464 days true 3.75 4%
SimonPayne 10/10 2482 days 3.1 3%
Beachfan 10/10 2513 days 3.06 3%
calamityalex 10/10 2513 days 3.06 3%
Brian & Di 8/10 2709 days true 3.35 3%
Janice OConnor 9/10 2710 days true 3.35 3%
W Groshops 7/10 2716 days true 3.34 3%
Richard Broughton 9/10 2721 days true 3.33 3%
nzMuppet 10/10 2727 days 2.76 2%
Hartheib Schmid 4/10 2730 days true 3.12 3%
Katharina Dierkes 5/10 2742 days true 3.29 3%
Isbabel 9/10 2753 days true 3.27 3%
didine 10/10 2755 days 2.73 2%
grumpy2 9/10 2786 days 2.68 2%
Mattie 10/10 2847 days 2.6 2%
Bianca 10/10 2908 days 2.52 2%
Vanessa 10/10 3031 days 2.35 2%
letstraveltogether 10/10 3061 days 2.31 2%
JTT 10/10 3061 days 2.31 2%
Theresa 10/10 3080 days true 2.74 2%
bdgenge 10/10 3092 days 2.26 2%
SB 9/10 3094 days true 2.71 2%
Helen Power 9/10 3115 days true 2.68 2%
Adriane 8/10 3116 days true 2.68 2%
chloeA 10/10 3120 days 2.23 2%
Markus 10/10 3136 days true 2.64 2%
Duncan Fea 10/10 3151 days 2.18 2%
Heather 10/10 3151 days 2.18 2%
Annie 10/10 3151 days 2.18 2%
sue pentelow 10/10 3151 days 2.18 2%
jenny 10/10 3151 days 2.18 2%
lizi 10/10 3151 days 2.18 2%
judy 10/10 3151 days 2.18 2%
ronella 10/10 3182 days 2.14 2%
Barney_Biker 10/10 3212 days 2.1 2%
Ruth Kinder 10/10 3243 days 2.06 1%
NZJenJen 8/10 3273 days 2.02 1%
Tanya 10/10 3396 days 1.85 1%
Colleen Doherty 10/10 3396 days 1.85 1%
penny hoyle 10/10 3396 days 1.85 1%
Esther Craddock-Taylor 10/10 3396 days 1.85 1%
Conrad Duden 10/10 3426 days 1.81 1%
scottl 10/10 3426 days true 2.17 2%
BrunoS 8/10 3461 days true 2.11 2%
Eva Duessler 10/10 3516 days 1.68 1%
Groen 8/10 3539 days true 1.98 1%
Frauke 10/10 3557 days true 1.95 1%
Caroline Cole 8/10 3803 days true 1.55 1%
Andy 8/10 3869 days true 1.44 1%
Lauren 8/10 4133 days true 1.01 0%
Cohen 7/10 4152 days true 0.97 0%
Andreas 8/10 4192 days true 0.91 0%
Elaine 9/10 4204 days true 0.89 0%
KikiNelissen 9/10 4204 days true 0.89 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 Cougar Line experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-6.62% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Cougar Line 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 364 days.

The Cougar Line experience has been adjusted for 331 days. Adjustments are according to the following table.

Days Adjustment
328 -6.56%
329 -6.58%
330 -6.60%
331 -6.62%
332 -6.64%
333 -6.66%
334 -6.68%

Final Ranking Score

88%

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.