Stray

Ranking Score Explained

G'day, 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

84.25%

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	2632 days	100%
Tom C	10/10	3423 days	63%
Jodie	10/10	3423 days	63%
Paul	10/10	3423 days	63%
Christin Ossege	10/10	3545 days	55%
Theodore Trozinski	9/10	3605 days	51%
Phil Hartmann	10/10	3758 days	41%
dana forrest	10/10	3850 days	35%
Abbi Smith	10/10	3911 days	31%
Nicko Wong	10/10	3942 days	28%
Jodine	10/10	3970 days	27%
Samuel Berwick	10/10	3970 days	27%
Amy Jellings	10/10	4062 days	20%
Anna Elden	9/10	4062 days	20%
Andrea Leichtl	10/10	4276 days	6%
Johanna Molenaar	7/10	4276 days	6%
Claudia Bauch	3/10	4305 days	2%
Charlotte Wilson	10/10	4307 days	4%
Chris Luebbi	8/10	4307 days	4%
jason beinstein	9/10	4335 days	2%
discoveringaway	9/10	4335 days	2%
ieva m	8/10	4366 days	0%
Sonia	10/10	4366 days	0%
Zsolt	10/10	4366 days	0%
Victoria Wander	10/10	4366 days	0%
TtotheT13	9/10	4397 days	33%
Kim O'Neill	10/10	4427 days	33%
Maia Kazaks	8/10	4427 days	33%
Colette Keely	10/10	4458 days	33%
Jen Hards	10/10	4488 days	33%
Thomas Jones	10/10	4519 days	33%
Raj Singh	10/10	4519 days	33%
Sohie	9/10	4677 days	33%
Robin Andersson	9/10	4700 days	33%
Megan Gallagher	10/10	4731 days	33%
Andy Brown	10/10	4731 days	33%
Vinnie K	10/10	4792 days	33%
Heather_Oz	9/10	4853 days	33%
luciasolda	10/10	4915 days	33%
jennyj	10/10	4945 days	33%
dwehrtmann	9/10	4976 days	33%
Evaislief	10/10	5006 days	33%
Malena	10/10	5037 days	33%
navilink	10/10	5037 days	33%
meganb04	10/10	5037 days	33%
MaryG	10/10	5037 days	33%
JoPycroft	10/10	5037 days	33%
lovebyname	9/10	5037 days	33%
Sonia Sennane	7/10	5038 days	31%
Tamara McVey	7/10	5049 days	31%
Rachel	7/10	5051 days	31%
Danielle & Jobbe	8/10	5051 days	33%
Andy Bridgman	8/10	5051 days	33%
Fiona Finke	6/10	5057 days	29%
Miron & Hendrik	8/10	5061 days	33%
marielou	10/10	5066 days	33%
iainmcgin	10/10	5066 days	33%
redkeels	10/10	5066 days	33%
lulu	6/10	5097 days	29%
Boogie	5/10	5128 days	25%
isha	9/10	5128 days	33%
pepper	9/10	5158 days	33%
Kez	10/10	5189 days	33%
Brilly01	8/10	5189 days	33%
yens123	9/10	5189 days	33%
louiset	9/10	5189 days	33%
siek09	9/10	5219 days	33%
rosey	10/10	5250 days	33%
Cadz	10/10	5250 days	33%
natalietrueman84	10/10	5281 days	33%
Josie	10/10	5281 days	33%
Scott_and_Stephanie	9/10	5372 days	33%
Samantha	10/10	5372 days	33%
Tracey Airiscough	9/10	5394 days	33%
Vanessa Hanzen	4/10	5395 days	21%
Lauren McKeone	7/10	5401 days	31%
Faye Cox	7/10	5401 days	31%
pudddddin	9/10	5403 days	33%
alicevarren	9/10	5403 days	33%
irisheyes	7/10	5403 days	31%
Steff	7/10	5423 days	31%
Forestal Youri	7/10	5423 days	31%
Amanda Craig	8/10	5425 days	33%
Olle Beide	8/10	5431 days	33%
JonathanMills	8/10	5431 days	33%
lisa	9/10	5462 days	33%
phydough	6/10	5493 days	29%
zippy	10/10	5584 days	33%
TerriH	10/10	5615 days	33%
ciara	10/10	5646 days	33%
mel1407	10/10	5646 days	33%
Claram	9/10	5676 days	33%
joycevanb	7/10	5707 days	31%
JohnG	10/10	5707 days	33%
nicolejr413	9/10	5737 days	33%
Antoine Migault	8/10	5758 days	33%
Christine T	7/10	5762 days	31%
Kay Beaumont	8/10	5770 days	33%
Johan	7/10	5770 days	31%
S Millet	9/10	5774 days	33%
Jens van Evp	9/10	5792 days	33%
Max Van der Zalm	9/10	5792 days	33%
Emily Walters	7/10	5794 days	31%
Brett Oz	9/10	5827 days	33%
greenbex	9/10	5827 days	33%
simonbo	3/10	5842 days	18%
katesc	9/10	5847 days	33%
martint	6/10	5851 days	29%
richelle	7/10	5851 days	31%
rosalindm	8/10	5852 days	33%
katepat	8/10	5858 days	33%
Beau	5/10	5858 days	25%
Debbie Rathbone	10/10	5865 days	33%
Ricarda	3/10	5868 days	18%
Malinka Nuefeld	4/10	5868 days	21%
Martin	9/10	5868 days	33%
Thomas Willi	8/10	5868 days	33%
Jess Pasos	9/10	5877 days	33%
stettim	10/10	5919 days	33%
Philipp	9/10	5919 days	33%
Holly Mrowiec	10/10	5949 days	33%
Sophie Keate	10/10	5986 days	33%
Sam Lightfoot	10/10	5986 days	33%
Jenny Lee	7/10	6008 days	31%
Cat Payne	9/10	6015 days	33%
Catherine Smiles	10/10	6016 days	33%
Nikki Turner	9/10	6023 days	33%
TaraD	10/10	6100 days	33%
BiancaA	9/10	6100 days	33%
hibbler	10/10	6102 days	33%
ferdinande	7/10	6104 days	31%
mariea	8/10	6114 days	33%
JennekeK	6/10	6114 days	29%
Ross	5/10	6116 days	25%
MarielR	7/10	6120 days	31%
NikW	8/10	6120 days	33%
Anna Skeer	9/10	6143 days	33%
EmmaB1	8/10	6148 days	33%
BethanD	9/10	6149 days	33%
renanf	8/10	6153 days	33%
Laura Muser	9/10	6161 days	33%
Alan Gallagher	7/10	6161 days	31%
Ellen Perrin	9/10	6161 days	33%
Julia	7/10	6164 days	31%
Philipp	10/10	6167 days	33%
Marieke	3/10	6168 days	18%
Katie	10/10	6171 days	33%
Ann-Kathren	7/10	6175 days	31%
Sonja	8/10	6207 days	33%
Claudia Schmidt	9/10	6219 days	33%
sylvia	8/10	6224 days	33%
Amy Newton	10/10	6227 days	33%
debsnz	10/10	6240 days	33%
Nicole	3/10	6249 days	18%
Spike	7/10	6309 days	31%
Sam Prior	8/10	6318 days	33%
Marco	7/10	6342 days	31%
Meike Biel	8/10	6452 days	33%
Helen	8/10	6452 days	33%
Mark	7/10	6472 days	31%
Julie	5/10	6482 days	25%
Marlo	7/10	6489 days	31%
Simon Mills	8/10	6499 days	33%
Sayaka	4/10	6514 days	21%
Camille	10/10	6515 days	33%
Anders	9/10	6515 days	33%
Laura	8/10	6538 days	33%
Ian	7/10	6542 days	31%
Carole Roccia	6/10	6543 days	29%
Thierry Berdah	8/10	6545 days	33%
Helena	8/10	6545 days	33%
Peter Katafey	6/10	6545 days	29%
Lindsey Woosnam	5/10	6545 days	25%
Katherine	7/10	6548 days	31%
Fred	6/10	6549 days	29%
Rob	5/10	6549 days	25%
Gav	10/10	6549 days	33%
Tom Anson	8/10	6550 days	33%
Paul Cowie	10/10	6577 days	33%
Jim	8/10	6586 days	33%
Willemien	7/10	6594 days	31%
Helen	8/10	6820 days	33%
David	5/10	6823 days	25%
Stefan	7/10	6823 days	31%
Gwen	8/10	6826 days	33%
Hanneke	8/10	6830 days	33%
Matt	7/10	6830 days	31%
Alex	8/10	6830 days	33%
Johnny	8/10	6830 days	33%
Aaron	9/10	6830 days	33%
Hilary	10/10	6839 days	33%
Nina	8/10	6874 days	33%
Italy	9/10	6874 days	33%
Helle	7/10	6874 days	31%
KikiNelissen	7/10	6880 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.