Stray

Ranking Score Explained

Hey, 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 Stray.

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

Rankers Owner

Valid Reviews

195 Valid Reviews

The Stray experience has a total of 202 reviews. There are 195 valid reviews that are included when calculating the ranking score and 7 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 195 valid reviews:

Rating	Count
10/10	62	32%
9/10	42	22%
8/10	36	18%
7/10	31	16%
6/10	9	5%
5/10	7	4%
4/10	3	2%
3/10	5	3%
2/10	0	0%
1/10	0	0%

83.03% Average

The raw data average (mean) for all the Stray valid reviews is 83.03% and is based on 195 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

101 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 195 valid reviews, the experience has 101 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 101 face-to-face reviews:

Rating	Count
10/10	10	10%
9/10	15	15%
8/10	30	30%
7/10	28	28%
6/10	6	6%
5/10	4	4%
4/10	3	3%
3/10	5	5%
2/10	0	0%
1/10	0	0%

74.65% Average

The raw data average (mean) for all the Stray face-to-face reviews is 74.65% and is based on 101 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

84.26%

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
Atte	6/10	2631 days	100%
Tom C	10/10	3422 days	63%
Jodie	10/10	3422 days	63%
Paul	10/10	3422 days	63%
Christin Ossege	10/10	3544 days	55%
Theodore Trozinski	9/10	3604 days	51%
Phil Hartmann	10/10	3757 days	41%
dana forrest	10/10	3849 days	35%
Abbi Smith	10/10	3910 days	31%
Nicko Wong	10/10	3941 days	28%
Jodine	10/10	3969 days	27%
Samuel Berwick	10/10	3969 days	27%
Amy Jellings	10/10	4061 days	20%
Anna Elden	9/10	4061 days	20%
Andrea Leichtl	10/10	4275 days	6%
Johanna Molenaar	7/10	4275 days	6%
Claudia Bauch	3/10	4304 days	2%
Charlotte Wilson	10/10	4306 days	4%
Chris Luebbi	8/10	4306 days	4%
jason beinstein	9/10	4334 days	2%
discoveringaway	9/10	4334 days	2%
ieva m	8/10	4365 days	0%
Sonia	10/10	4365 days	0%
Zsolt	10/10	4365 days	0%
Victoria Wander	10/10	4365 days	0%
TtotheT13	9/10	4396 days	33%
Kim O'Neill	10/10	4426 days	33%
Maia Kazaks	8/10	4426 days	33%
Colette Keely	10/10	4457 days	33%
Jen Hards	10/10	4487 days	33%
Thomas Jones	10/10	4518 days	33%
Raj Singh	10/10	4518 days	33%
Sohie	9/10	4676 days	33%
Robin Andersson	9/10	4699 days	33%
Megan Gallagher	10/10	4730 days	33%
Andy Brown	10/10	4730 days	33%
Vinnie K	10/10	4791 days	33%
Heather_Oz	9/10	4852 days	33%
luciasolda	10/10	4914 days	33%
jennyj	10/10	4944 days	33%
dwehrtmann	9/10	4975 days	33%
Evaislief	10/10	5005 days	33%
Malena	10/10	5036 days	33%
navilink	10/10	5036 days	33%
meganb04	10/10	5036 days	33%
MaryG	10/10	5036 days	33%
JoPycroft	10/10	5036 days	33%
lovebyname	9/10	5036 days	33%
Sonia Sennane	7/10	5037 days	31%
Tamara McVey	7/10	5048 days	31%
Rachel	7/10	5050 days	31%
Danielle & Jobbe	8/10	5050 days	33%
Andy Bridgman	8/10	5050 days	33%
Fiona Finke	6/10	5056 days	29%
Miron & Hendrik	8/10	5060 days	33%
marielou	10/10	5065 days	33%
iainmcgin	10/10	5065 days	33%
redkeels	10/10	5065 days	33%
lulu	6/10	5096 days	29%
Boogie	5/10	5127 days	25%
isha	9/10	5127 days	33%
pepper	9/10	5157 days	33%
Kez	10/10	5188 days	33%
Brilly01	8/10	5188 days	33%
yens123	9/10	5188 days	33%
louiset	9/10	5188 days	33%
siek09	9/10	5218 days	33%
rosey	10/10	5249 days	33%
Cadz	10/10	5249 days	33%
natalietrueman84	10/10	5280 days	33%
Josie	10/10	5280 days	33%
Scott_and_Stephanie	9/10	5371 days	33%
Samantha	10/10	5371 days	33%
Tracey Airiscough	9/10	5393 days	33%
Vanessa Hanzen	4/10	5394 days	21%
Lauren McKeone	7/10	5400 days	31%
Faye Cox	7/10	5400 days	31%
pudddddin	9/10	5402 days	33%
alicevarren	9/10	5402 days	33%
irisheyes	7/10	5402 days	31%
Steff	7/10	5422 days	31%
Forestal Youri	7/10	5422 days	31%
Amanda Craig	8/10	5424 days	33%
Olle Beide	8/10	5430 days	33%
JonathanMills	8/10	5430 days	33%
lisa	9/10	5461 days	33%
phydough	6/10	5492 days	29%
zippy	10/10	5583 days	33%
TerriH	10/10	5614 days	33%
ciara	10/10	5645 days	33%
mel1407	10/10	5645 days	33%
Claram	9/10	5675 days	33%
joycevanb	7/10	5706 days	31%
JohnG	10/10	5706 days	33%
nicolejr413	9/10	5736 days	33%
Antoine Migault	8/10	5757 days	33%
Christine T	7/10	5761 days	31%
Kay Beaumont	8/10	5769 days	33%
Johan	7/10	5769 days	31%
S Millet	9/10	5773 days	33%
Jens van Evp	9/10	5791 days	33%
Max Van der Zalm	9/10	5791 days	33%
Emily Walters	7/10	5793 days	31%
Brett Oz	9/10	5826 days	33%
greenbex	9/10	5826 days	33%
simonbo	3/10	5841 days	18%
katesc	9/10	5846 days	33%
martint	6/10	5850 days	29%
richelle	7/10	5850 days	31%
rosalindm	8/10	5851 days	33%
katepat	8/10	5857 days	33%
Beau	5/10	5857 days	25%
Debbie Rathbone	10/10	5864 days	33%
Ricarda	3/10	5867 days	18%
Malinka Nuefeld	4/10	5867 days	21%
Martin	9/10	5867 days	33%
Thomas Willi	8/10	5867 days	33%
Jess Pasos	9/10	5876 days	33%
stettim	10/10	5918 days	33%
Philipp	9/10	5918 days	33%
Holly Mrowiec	10/10	5948 days	33%
Sophie Keate	10/10	5985 days	33%
Sam Lightfoot	10/10	5985 days	33%
Jenny Lee	7/10	6007 days	31%
Cat Payne	9/10	6014 days	33%
Catherine Smiles	10/10	6015 days	33%
Nikki Turner	9/10	6022 days	33%
TaraD	10/10	6099 days	33%
BiancaA	9/10	6099 days	33%
hibbler	10/10	6101 days	33%
ferdinande	7/10	6102 days	31%
mariea	8/10	6113 days	33%
JennekeK	6/10	6113 days	29%
Ross	5/10	6115 days	25%
MarielR	7/10	6119 days	31%
NikW	8/10	6119 days	33%
Anna Skeer	9/10	6142 days	33%
EmmaB1	8/10	6147 days	33%
BethanD	9/10	6148 days	33%
renanf	8/10	6152 days	33%
Laura Muser	9/10	6160 days	33%
Alan Gallagher	7/10	6160 days	31%
Ellen Perrin	9/10	6160 days	33%
Julia	7/10	6163 days	31%
Philipp	10/10	6166 days	33%
Marieke	3/10	6167 days	18%
Katie	10/10	6170 days	33%
Ann-Kathren	7/10	6173 days	31%
Sonja	8/10	6206 days	33%
Claudia Schmidt	9/10	6218 days	33%
sylvia	8/10	6223 days	33%
Amy Newton	10/10	6226 days	33%
debsnz	10/10	6239 days	33%
Nicole	3/10	6248 days	18%
Spike	7/10	6308 days	31%
Sam Prior	8/10	6317 days	33%
Marco	7/10	6341 days	31%
Meike Biel	8/10	6451 days	33%
Helen	8/10	6451 days	33%
Mark	7/10	6471 days	31%
Julie	5/10	6481 days	25%
Marlo	7/10	6488 days	31%
Simon Mills	8/10	6498 days	33%
Sayaka	4/10	6513 days	21%
Camille	10/10	6514 days	33%
Anders	9/10	6514 days	33%
Laura	8/10	6537 days	33%
Ian	7/10	6541 days	31%
Carole Roccia	6/10	6542 days	29%
Thierry Berdah	8/10	6544 days	33%
Helena	8/10	6544 days	33%
Peter Katafey	6/10	6544 days	29%
Lindsey Woosnam	5/10	6544 days	25%
Katherine	7/10	6547 days	31%
Fred	6/10	6548 days	29%
Rob	5/10	6548 days	25%
Gav	10/10	6548 days	33%
Tom Anson	8/10	6549 days	33%
Paul Cowie	10/10	6576 days	33%
Jim	8/10	6585 days	33%
Willemien	7/10	6593 days	31%
Helen	8/10	6819 days	33%
David	5/10	6822 days	25%
Stefan	7/10	6822 days	31%
Gwen	8/10	6825 days	33%
Hanneke	8/10	6829 days	33%
Matt	7/10	6829 days	31%
Alex	8/10	6829 days	33%
Johnny	8/10	6829 days	33%
Aaron	9/10	6829 days	33%
Hilary	10/10	6838 days	33%
Nina	8/10	6873 days	33%
Italy	9/10	6873 days	33%
Helle	7/10	6873 days	31%
KikiNelissen	7/10	6879 days	31%

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 Stray experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-4.06% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 42 days. However the Stray 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 Stray experience has been adjusted for 200 days. Adjustments are according to the following table.

Days	Adjustment
…	…
197	-4.00%
198	-4.02%
199	-4.04%
200	-4.06%
201	-4.08%
202	-4.10%
203	-4.12%
…	…

Balancing Adjustment

2.95% 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

83%

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.