Ranking Score Explained

Hi, 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 PureTrails New Zealand.

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.

Cymen Crick's avatar

Cymen Crick

Rankers Owner

PureTrails New Zealand

Valid Reviews

53 Valid Reviews

The PureTrails New Zealand experience has a total of 56 reviews. There are 53 valid reviews that are included when calculating the ranking score and 3 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 53 valid reviews:

Rating Count Percentage
10/10 38
72%
9/10 15
28%
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%

97.17% Average

The raw data average (mean) for all the PureTrails New Zealand valid reviews is 97.17% and is based on 53 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.

Weighted Average

97.36%

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 Relative Weight
Gordon 10/10 1708 days 100%
Alias Gertrude 10/10 2043 days 79%
Jan 10/10 2043 days 79%
helen mclean 10/10 2074 days 78%
John Hayman 9/10 2194 days 73%
wendy mesley 9/10 2408 days 65%
Michelle 10/10 2408 days 66%
Derwin Arnstead 10/10 2497 days 63%
Anne Duncan 10/10 2862 days 50%
Nick Smith 9/10 3168 days 39%
Fiona 9/10 3168 days 39%
Dianne Kidd 10/10 3197 days 39%
David Darmanin 10/10 3198 days 39%
Sam 10/10 3228 days 38%
Julie B 10/10 3259 days 37%
Janelle Varlow 10/10 3289 days 36%
Helen Bryan 10/10 3503 days 28%
Geoff Bartlett 10/10 3534 days 27%
Diana Houtman 10/10 3534 days 27%
Mary Karl 10/10 3534 days 27%
fgiacoma 9/10 3562 days 26%
ross murray 10/10 3594 days 25%
Jane Geldenhuys 10/10 3624 days 24%
Ian Anderson 10/10 3624 days 24%
Ros Noone 9/10 3654 days 23%
Peter Hales 9/10 3869 days 16%
David Vinsen 10/10 3900 days 15%
Caroline Barber 9/10 3928 days 14%
Denise McMahon 9/10 3928 days 14%
cmh 10/10 4020 days 10%
John Marchment 10/10 4051 days 9%
Ian and Chris Homann 10/10 4265 days 2%
Nancy Stone 10/10 4293 days 1%
Graham Bamford 10/10 4324 days 0%
pauart 10/10 4385 days 16%
jennic 9/10 4416 days 16%
smithereen 10/10 4599 days 16%
Maryel 10/10 4599 days 16%
Woods 10/10 4630 days 16%
JennyT 10/10 4630 days 16%
maureenmf 10/10 4630 days 16%
frankie 10/10 4630 days 16%
FrancesJ 9/10 4630 days 16%
AlanWillow 10/10 4630 days 16%
cribble 9/10 4630 days 16%
shoanthomson 10/10 4630 days 16%
Montpellier 9/10 4659 days 16%
LIZ_MONTGOMERY 10/10 4690 days 16%
upmack 10/10 4690 days 16%
Michael73 10/10 4721 days 16%
LizH 10/10 4751 days 16%
lyndab 9/10 4751 days 16%
frendoj 9/10 4751 days 16%

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 PureTrails New Zealand experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.89% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 49 days. However the PureTrails New Zealand 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 PureTrails New Zealand experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -3.84%
198 -3.86%
199 -3.87%
200 -3.89%
201 -3.91%
202 -3.93%
203 -3.95%

Balancing Adjustment

0.59% Adjustment

Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.

You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.

We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.

Final Ranking Score

94%

The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.