MARKET STUDY All analysis covers resale homes only. New construction appears once, in its own section. Click any dot on the map for that sale.
Resale sales, 365 days
18
single-family resale homes
Median net sale price
$464,000
average $494,692
Median net price per SF
$191
average $184
Median days on market
135 days
average 148 days
1. SummaryResale homes · 18 sales · November 5, 2025 – November 4, 2026
This study looks at the 18 resale homes sold in Tessera On Lake Travis Ph 1A in the 365 days to November 4, 2026. A full year is used because only 8 resale homes sold in the last 180 days. New construction is left out and shown on its own in section 7. The homes are compared four ways: by price, by living area, by year built and with or without a view. The first three are split into four equal groups (quartiles), each named by its range.
Each comparison has its own section (3–6) with everything about it in one place: the key differences, a table of every measure at a glance, the charts and the numbers.
2. Where the resale homes sold18 resale homes · colored by price range
Each dot is one resale home, colored by its price range. Use the buttons to show one price range at a time. Click a dot for that sale: address, close date, original and last list price, net sale price, living area, net sale per SF and days on market. Scroll or pinch to zoom.
3. Quartiles by net sale priceResale homes · 18 sales · November 5, 2025 – November 4, 2026
Sales ranked by net sale price and cut into four equal groups. This is the usual way to read a market by price.
Bottom line: too few sales to test.
3.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
How to read this section. Each heading gives the finding. The gold box says whether the gap is real (✓, with its size) or could be chance (–). The section ends with its numbers; the tests are in section 8.3.
3.3 Net price per SF: described, not tested
The average is $190 per SF for homes over $603K and $184 per SF for homes under $400K. It does not move in a straight line; homes over $603K are highest. Defined in 8.1.2.
Not tested: too few sales.
3.4 Living area: described, not tested
The average is 3,484 SF for homes over $603K and 1,954 SF for homes under $400K. It rises step by step from the lowest range to the highest. Defined in 8.1.3.
Not tested: too few sales.
3.5 Year built: described, not tested
The median is 2015 for homes over $603K and 2020 for homes under $400K. It does not move in a straight line; homes $400K–$434K are highest. Defined in 8.1.4.
Not tested: too few sales.
3.6 Days on market: described, not tested
The median is 146 days for homes over $603K and 135 days for homes under $400K. It does not move in a straight line; homes $494K–$603K are highest. Defined in 8.1.5.
Not tested: too few sales.
3.7 Discount from original list: described, not tested
The average is 9.1% for homes over $603K and 6.9% for homes under $400K. It does not move in a straight line; homes $494K–$603K are highest. Defined in 8.1.6.
Not tested: too few sales.
3.8 How often: price cut before sale, seller paid closing costs or repairs, has a view
Each bar is the share of homes in the group, in percent.
100% of homes over $603K had a price cut before sale, against 50% of homes under $400K. Defined in 8.1.7.
75% of homes over $603K had the seller pay closing costs or repairs, against 50% of homes under $400K. Defined in 8.1.8.
100% of homes over $603K have a view, against 0% of homes under $400K. Defined in 8.1.9.
Price cut before sale: Not tested: too few sales.
Seller paid closing costs or repairs: Not tested: too few sales.
Has a view: Not tested: too few sales.
3.9 The numbers: price and size
Under $400K4 sales
$400K–$434K5 sales
$494K–$603K5 sales
Over $603K4 sales
All18 sales
Net sale price average
$350,688
$413,320
$561,520
$656,875
$494,692
Net price per SF average
$184
$184
$179
$190
$184
Living area average
1,954
2,274
3,143
3,484
2,713
Year built median
2020
2021
2017
2015
2019
3.10 The numbers: selling
Under $400K4 sales
$400K–$434K5 sales
$494K–$603K5 sales
Over $603K4 sales
All18 sales
Days on market median
135
52
189
146
135
Discount from original list average
6.9%
8.2%
11.4%
9.1%
9.0%
Price cut before sale
50%
80%
60%
100%
72%
Seller paid closing costs or repairs
50%
40%
80%
75%
61%
Has a view
0%
40%
60%
100%
50%
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.1.
4. Quartiles by living areaResale homes · 18 sales · November 5, 2025 – November 4, 2026
Sales ranked by living area and cut into four equal groups, from the smallest homes to the largest.
Bottom line: too few sales to test.
4.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
4.3 Net sale price: described, not tested
The average is $644K for homes over 3,168 SF and $363K for homes under 2,104 SF. It rises step by step from the lowest range to the highest. Defined in 8.1.1.
Not tested: too few sales.
4.4 Net price per SF: described, not tested
The average is $179 per SF for homes over 3,168 SF and $200 per SF for homes under 2,104 SF. It does not move in a straight line; homes under 2,104 SF are highest. Defined in 8.1.2.
Not tested: too few sales.
4.5 Year built: described, not tested
The median is 2016 for homes over 3,168 SF and 2020 for homes under 2,104 SF. It does not move in a straight line; homes 2,104–2,772 SF are highest. Defined in 8.1.4.
Not tested: too few sales.
4.6 Days on market: described, not tested
The median is 196 days for homes over 3,168 SF and 85 days for homes under 2,104 SF. It rises step by step from the lowest range to the highest. Defined in 8.1.5.
Not tested: too few sales.
4.7 Discount from original list: described, not tested
The average is 8.5% for homes over 3,168 SF and 6.2% for homes under 2,104 SF. It does not move in a straight line; homes 2,879–3,168 SF are highest. Defined in 8.1.6.
Not tested: too few sales.
4.8 How often: price cut before sale, seller paid closing costs or repairs, has a view
Each bar is the share of homes in the group, in percent.
75% of homes over 3,168 SF had a price cut before sale, against 75% of homes under 2,104 SF. Defined in 8.1.7.
75% of homes over 3,168 SF had the seller pay closing costs or repairs, against 25% of homes under 2,104 SF. Defined in 8.1.8.
100% of homes over 3,168 SF have a view, against 25% of homes under 2,104 SF. Defined in 8.1.9.
Price cut before sale: Not tested: too few sales.
Seller paid closing costs or repairs: Not tested: too few sales.
Has a view: Not tested: too few sales.
4.9 The numbers: price and size
Under 2,104 SF4 sales
2,104–2,772 SF5 sales
2,879–3,168 SF5 sales
Over 3,168 SF4 sales
All18 sales
Net sale price average
$363,250
$403,270
$571,920
$643,875
$494,692
Net price per SF average
$200
$171
$189
$179
$184
Living area average
1,818
2,383
3,026
3,631
2,713
Year built median
2020
2021
2016
2016
2019
4.10 The numbers: selling
Under 2,104 SF4 sales
2,104–2,772 SF5 sales
2,879–3,168 SF5 sales
Over 3,168 SF4 sales
All18 sales
Days on market median
85
87
167
196
135
Discount from original list average
6.2%
8.8%
12.0%
8.5%
9.0%
Price cut before sale
75%
60%
80%
75%
72%
Seller paid closing costs or repairs
25%
60%
80%
75%
61%
Has a view
25%
20%
60%
100%
50%
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.2.
5. Quartiles by year builtResale homes · 18 sales · November 5, 2025 – November 4, 2026
Sales ranked by year built and cut into four groups, from the oldest to the newest. Homes built in the same year always stay in the same group, so group sizes can differ a little.
Bottom line: too few sales to test.
5.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
5.3 Net sale price: described, not tested
The average is $389K for homes built after 2020 and $634K for homes built before 2016. It falls step by step from the lowest range to the highest. Defined in 8.1.1.
Not tested: too few sales.
5.4 Net price per SF: described, not tested
The average is $181 per SF for homes built after 2020 and $189 per SF for homes built before 2016. It does not move in a straight line; homes built before 2016 are highest. Defined in 8.1.2.
Not tested: too few sales.
5.5 Living area: described, not tested
The average is 2,180 SF for homes built after 2020 and 3,392 SF for homes built before 2016. It falls step by step from the lowest range to the highest. Defined in 8.1.3.
Not tested: too few sales.
5.6 Days on market: described, not tested
The median is 131 days for homes built after 2020 and 90 days for homes built before 2016. It does not move in a straight line; homes built 2016–2018 are highest. Defined in 8.1.5.
Not tested: too few sales.
5.7 Discount from original list: described, not tested
The average is 8.8% for homes built after 2020 and 9.0% for homes built before 2016. It does not move in a straight line; homes built 2019–2020 are highest. Defined in 8.1.6.
Not tested: too few sales.
5.8 How often: price cut before sale, seller paid closing costs or repairs, has a view
Each bar is the share of homes in the group, in percent.
60% of homes built after 2020 had a price cut before sale, against 100% of homes built before 2016. Defined in 8.1.7.
60% of homes built after 2020 had the seller pay closing costs or repairs, against 50% of homes built before 2016. Defined in 8.1.8.
20% of homes built after 2020 have a view, against 75% of homes built before 2016. Defined in 8.1.9.
Price cut before sale: Not tested: too few sales.
Seller paid closing costs or repairs: Not tested: too few sales.
Has a view: Not tested: too few sales.
5.9 The numbers: price and size
Before 20164 sales
2016–20184 sales
2019–20205 sales
After 20205 sales
All18 sales
Net sale price average
$633,875
$601,525
$403,300
$389,270
$494,692
Net price per SF average
$189
$183
$184
$181
$184
Living area average
3,392
3,302
2,233
2,180
2,713
Year built median
2015
2017
2019
2021
2019
5.10 The numbers: selling
Before 20164 sales
2016–20184 sales
2019–20205 sales
After 20205 sales
All18 sales
Days on market median
90
196
52
131
135
Discount from original list average
9.0%
5.0%
12.4%
8.8%
9.0%
Price cut before sale
100%
50%
80%
60%
72%
Seller paid closing costs or repairs
50%
100%
40%
60%
61%
Has a view
75%
100%
20%
20%
50%
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.3.
6. View and no viewResale homes · 18 sales · November 5, 2025 – November 4, 2026
Sales where the MLS lists a view (greenbelt or park, trees, golf course, hill country, water and similar) against those listing none or only the neighborhood. 1 sales whose MLS view entry is only “See Remarks” are left out.
Bottom line: no measure differs enough between the groups to rule out chance.
6.1 Key differences
The top group against the bottom group: no measure differs enough to rule out chance.
6.2 At a glance
Shaded rows are real differences; the darkest cell is the highest. Gray rows show no clear difference. Prices are averages; days on market and year built are medians.
View
No view
Real difference?
Net sale price
$572K
$418K
unclear
Net price per SF
$187 per SF
$185 per SF
unclear
Living area
3,089 SF
2,283 SF
unclear
Year built
2017
2020
unclear
Days on market
167 days
112 days
unclear
Discount from original list
6.3%
10.2%
unclear
Price cut before sale
67%
75%
unclear
Seller paid closing costs or repairs
67%
50%
unclear
6.3 Net sale price: no clear difference
The average is $572K for homes with a view and $418K for homes without a view. Defined in 8.1.1.
– No clear difference · could be chance
6.4 Net price per SF: no clear difference
The average is $187 per SF for homes with a view and $185 per SF for homes without a view. Defined in 8.1.2.
– No clear difference · could be chance
6.5 Living area: no clear difference
The average is 3,089 SF for homes with a view and 2,283 SF for homes without a view. Defined in 8.1.3.
– No clear difference · could be chance
6.6 Year built: no clear difference
The median is 2017 for homes with a view and 2020 for homes without a view. Defined in 8.1.4.
– No clear difference · could be chance
6.7 Days on market: no clear difference
The median is 167 days for homes with a view and 112 days for homes without a view. Defined in 8.1.5.
– No clear difference · could be chance
6.8 Discount from original list: no clear difference
The average is 6.3% for homes with a view and 10.2% for homes without a view. Defined in 8.1.6.
– No clear difference · could be chance
6.9 How often: price cut before sale, seller paid closing costs or repairs
Each bar is the share of homes in the group, in percent.
67% of homes with a view had a price cut before sale, against 75% of homes without a view. Defined in 8.1.7.
67% of homes with a view had the seller pay closing costs or repairs, against 50% of homes without a view. Defined in 8.1.8.
Price cut before sale: – No clear difference · could be chance
Seller paid closing costs or repairs: – No clear difference · could be chance
6.10 The numbers: price and size
View9 sales
No view8 sales
All17 sales
Real difference?
Net sale price average
$571,622
$417,844
$499,256
unclear
Net price per SF average
$187
$185
$186
unclear
Living area average
3,089
2,283
2,710
unclear
Year built median
2017
2020
2019
unclear
6.11 The numbers: selling
View9 sales
No view8 sales
All17 sales
Real difference?
Days on market median
167
112
131
unclear
Discount from original list average
6.3%
10.2%
8.1%
unclear
Price cut before sale
67%
75%
71%
unclear
Seller paid closing costs or repairs
67%
50%
59%
unclear
Prices, price per SF, living area and discount are averages; days on market and year built are medians. The test behind each verdict is in 8.3.4.
7. New constructionBasic statistics · 4 sales · November 5, 2025 – November 4, 2026
Homes sold new by the builder in the same 365 days. They are left out of every other section and shown here as basic figures only: 4 sales, no groups, no tests.
Note: these are only the new-construction sales reported in ABOR MLS. Builders often sell homes without listing them in the MLS, so these figures do not necessarily represent all new-construction sales in Tessera On Lake Travis Ph 1A.
Measure
Average
Median
Sales
4
Net sale price
$440,749
$446,248
Net price per SF
$169
$165
Living area (SF)
2,632
2,712
Days on market
140
140
Discount from original list
25.8%
24.8%
Price cut before sale
100% of sales
Seller paid closing costs or repairs
75% of sales
Year built
2025–2025
Same definitions as the rest of the study (section 8). New construction = NewConstructionYN true, or PropertyCondition “New Construction” or “Under Construction”.
8. AppendixMeasures, methods and tests
Each measure and method three ways: in plain words, as statistics, and with the data from this study.
8.1 Measures
8.1.1 Net sale price
In simple terms
What the seller actually kept: the closing price, less money the seller gave back to the buyer for closing costs or repairs. It is the truest price for comparing homes.
Statistically
Net = ClosePrice − ACTRIS_BuyersClsgCostPdbySell − ACTRIS_RepairsAmount (a blank counts as $0). Summarized by the arithmetic mean in the slices.
The data
18 resale sales. Average $494,692; median $464,000; standard deviation $123,211; middle half (25th–75th percentile) $401,250–$602,750; lowest $320,000, highest $694,000. 11 sales had a seller payment; their median payment was $5,000.
8.1.2 Net price per SF
In simple terms
Net sale price divided by the heated and cooled square feet. It puts homes of different sizes on the same footing: did buyers pay more for each square foot, not just for more square feet?
Statistically
psf = Net ÷ LivingArea, per sale; summarized by the mean of the per-sale ratios.
The data
18 resale sales. Average $184; median $191; standard deviation $19; middle half (25th–75th percentile) $173–$197; lowest $150, highest $209.
8.1.3 Living area
In simple terms
The heated and cooled space, as listed in the MLS. Garages and porches are not counted.
Statistically
RESO LivingArea, in square feet. Sales under 400 SF are treated as entry errors and left out.
The data
18 resale sales. Average 2,713; median 2,826; standard deviation 711; middle half (25th–75th percentile) 2,108–3,158; lowest 1,566, highest 4,049.
8.1.4 Year built
In simple terms
The year the home was finished, as listed in the MLS. It shows whether a group leans to older or newer phases of the community.
Statistically
RESO YearBuilt; summarized by the median, with the 25th–75th percentile (middle half) on the charts.
The data
18 resale sales. Average 2018; median 2019; standard deviation 3; middle half (25th–75th percentile) 2016–2021; lowest 2014, highest 2023.
8.1.5 Days on market
In simple terms
How many days the home was on the market before the buyer's offer was accepted, counting any earlier listing periods (relists). This is the days on market agents and clients quote.
Statistically
CDOM = max(CumulativeDaysOnMarket, DaysOnMarket, PurchaseContractDate − ListingContractDate). The MLS counter can freeze at a price change, so the contract-date gap is a floor. Summarized by the median, because a few homes that sat for months pull an average up.
The data
18 resale sales. Average 148; median 135; standard deviation 119; middle half (25th–75th percentile) 71–184; lowest 10, highest 491. 0 sales went under contract on their listing date (0 days).
8.1.6 Discount from original list
In simple terms
How far below the first asking price the home sold, after seller payments. It measures how much negotiating room sellers gave up. A negative figure means the home sold above its first asking price.
Statistically
Discount % = (OriginalListPrice − Net) ÷ OriginalListPrice × 100, per sale; summarized by the mean.
The data
18 resale sales. Average 9.0%; median 5.6%; standard deviation 9.2%; middle half (25th–75th percentile) 3.6%–8.9%; lowest 0.0%, highest 37.5%. 0 sales closed above their first asking price.
8.1.7 Price cut before sale
In simple terms
The asking price was lowered at least once before the home went under contract.
Statistically
Indicator: ListPrice at close < OriginalListPrice. Reported as the share of sales (%).
The data
13 of 18 resale sales (72.2%).
8.1.8 Seller paid closing costs or repairs
In simple terms
The seller paid some of the buyer's closing costs or repairs.
Statistically
Indicator: ACTRIS_BuyersClsgCostPdbySell + ACTRIS_RepairsAmount > 0. Reported as the share of sales (%).
The data
11 of 18 resale sales (61.1%).
8.1.9 Has a view
In simple terms
The MLS says the home looks over something: a greenbelt or park, trees, golf course, hill country, water and similar.
Statistically
View = the View field holds any entry other than “None”, “Neighborhood” or “See Remarks”. No view = only “None” and/or “Neighborhood”. A record whose only entry is “See Remarks” cannot be classified and is left out of the view slice.
The data
9 sales with a view, 8 without, 1 unclassified. Most common View entries: Neighborhood 7, Hill Country 7, Lake 5, Park/Greenbelt 5, Trees/Woods 4, None 3, Water 2, See Remarks 1.
8.2 Methods
8.2.1 Data source
In simple terms
Every figure comes from the Austin Board of REALTORS® MLS, read live by ALEX. No figure is estimated or typed in.
Statistically
ABOR MLS via secure APIs, read from ALEX's copy of the MLS (refreshed every 15 minutes; this pull as of 2026-11-05 21:45 UTC), every field. Filter: StandardStatus = Closed, PropertyType = Residential, City = Lago Vista, SubdivisionName contains any of “tessera on lake travis”, “tessera lk travis”, “tessera”, “tessera/lk travis” (case-insensitive). A record is kept when its subdivision name belongs to the Tessera On Lake Travis Ph 1A family, the same rule comparable sales use (it includes Tessera/Lk Travis Ph 4A, Tessera, proven adjacent and priced alike).
The data
Pulled November 5, 2026: 22 closed Tessera On Lake Travis Ph 1A records over the prior year, in ZIP 78645. 9 subdivision spellings kept: Tessera On Lake Travis Ph 1A (8); Tessera 50s (4); Tessera/Lk Travis Ph 3A1 (3); Tessera (2); Tessera/Lk Travis Ph 1B2 (1); Tessera/Lk Travis Ph 1a (1); Tessera/Lk Travis Ph 3A2 (1); Tessera on Lake Travis (1); Tessera On Lake Travis (1). Names found by the search but not part of Tessera On Lake Travis Ph 1A, left out: Lakeside at Tessera (16); Lakeside At Tessera On Lake Travis (10); Lakeside at Tessera on Lake Travis (5); Lakeside at Tessera - Bluewood Collection (1); Lakeside in Tessera on Lake Travis PH 1A (1); LAKESIDE at Tessera on Lake Travis (1); LAKESIDE AT TESSERA ON LAKE TRAVIS (1); Lakeside in Tessera on Lake Travis (1); Tessera on Lake Travis PHS 4A (1); Lakeside At Tessera (1).
8.2.2 Study window
In simple terms
The most recent 365 days of closed sales: recent enough to describe today's market, long enough to give each group plenty of sales. The usual window is 180 days; it holds only 8 resale sales here (under 80), so the full year is used.
Statistically
CloseDate from November 5, 2025 to November 4, 2026 inclusive.
The data
22 single-family sales in the window: 18 resale, 4 new construction.
8.2.3 Resale and new construction
In simple terms
A resale home was previously owned. New construction is sold by the builder and behaves differently, so it is kept out of every analysis and reported once on its own.
Statistically
New construction = NewConstructionYN true, or PropertyCondition contains “New Construction” or “Under Construction”. Everything else is resale.
The data
18 resale; 4 new construction.
8.2.4 Sales left out
In simple terms
A few records cannot be used as entered and are left out before any analysis.
Statistically
Excluded: PropertySubType other than Single Family Residence; no OriginalListPrice; LivingArea under 400 SF; seller payments above 10% of ClosePrice (treated as entry errors).
The data
None in this window.
8.2.5 Quartiles and groups
In simple terms
Sales lined up from lowest to highest and cut into four groups of about equal size. Each group is named by its range, for example “Under $400K”.
Statistically
Sort by the slicing variable; cut k sits at round(nk/4), k = 1…3. A cut that would split tied values moves to the nearer edge of the tie. A group under 3 sales merges into its smaller neighbor. Range names use the next group's lowest value (“Under”) and the previous group's highest value (“Over”/“After”).
The data
Quartiles by net sale price: Under $400K: $320,000–$385,000 (4 sales); $400K–$434K: $400,000–$434,500 (5 sales); $494K–$603K: $493,500–$603,000 (5 sales); Over $603K: $635,000–$694,000 (4 sales) Quartiles by living area: Under 2,104 SF: 1,566–2,082 SF (4 sales); 2,104–2,772 SF: 2,104–2,772 SF (5 sales); 2,879–3,168 SF: 2,879–3,168 SF (5 sales); Over 3,168 SF: 3,221–4,049 SF (4 sales) Quartiles by year built: Before 2016: 2014–2015 (4 sales); 2016–2018: 2016–2018 (4 sales); 2019–2020: 2019–2020 (5 sales); After 2020: 2021–2023 (5 sales) View and no view: View: MLS lists a view (9 sales); No view: None or Neighborhood (8 sales)
8.2.6 Average and median
In simple terms
The average adds the values and divides by how many; one very expensive home can pull it up. The median is the middle value, with half above and half below.
Statistically
Mean x̄ = (1/n) Σ xᵢ; median = 50th percentile. Price, price per SF, living area and discount use the mean; days on market and year built use the median (skewed or whole-year values).
The data
Net sale price: average $494,692, median $464,000. Days on market: average 148, median 135: the average is pulled up by a few long listings.
8.2.7 Kruskal–Wallis test
In simple terms
Checks whether a measure really differs across the four groups of a slice. It uses each sale's rank, not its value, so a few extreme sales cannot drive the answer.
Statistically
H = [12/(n(n+1))] Σ Rⱼ²/nⱼ − 3(n+1), compared with χ² on k − 1 degrees of freedom (Kruskal & Wallis, 1952). Effect size ε² = H/(n − 1): ≥ .01 small, ≥ .06 medium, ≥ .14 large (Tomczak & Tomczak, 2014). A slice is tested only when every group has at least 5 sales; smaller groups are described, not tested.
The data
Run on every measure in sections 3–5; each result is in 8.3.
8.2.8 Mann–Whitney U test
In simple terms
The same check when there are only two groups: view against no view.
Statistically
Two-sided U test (Mann & Whitney, 1947). Effect size = rank-biserial correlation |1 − 2U/(n₁n₂)|: ≥ .10 small, ≥ .30 medium, ≥ .50 large (Kerby, 2014; Cohen, 1988).
The data
Run on every measure in section 6; results in 8.3.
8.2.9 Chi-square test
In simple terms
Checks whether a yes/no share (price cut, seller payment, view) differs between groups more than chance would.
Statistically
Pearson χ² on the 2 × k table of counts, no continuity correction (Pearson, 1900). Effect size Cramér's V = √(χ²/n): ≥ .10 small, ≥ .30 medium, ≥ .50 large (Cramér, 1946).
The data
Run on the three shares in every slice; results in 8.3.
8.2.10 Real difference (significance)
In simple terms
“Real difference” means a gap this large would be very unlikely if the groups were really alike. Because many measures are checked in each slice, the bar is set higher than usual.
Statistically
Significant when p < 0.05 ÷ m, where m is the number of measures tested in that slice (Bonferroni; Dunn, 1961). The slicing variable itself differs by design and is not tested.
The data
View and no view: m = 8, threshold p < 0.0063
8.2.11 Size of a difference
In simple terms
A difference can be real but small. The size word (small, medium, large) says how much the groups pull apart.
Statistically
ε² for Kruskal–Wallis, rank-biserial r for Mann–Whitney, Cramér's V for chi-square, with the thresholds above; below the small threshold the size is “negligible”.
The data
0 real differences across the four slices; sizes are listed in 8.3.
8.2.12 Rounding in the text
In simple terms
Headings and sentences round figures so they read easily; the tables at the end of each section give them in full.
Statistically
Prices in headings round to the nearest $1K; price per SF and days on market to the nearest whole number; living area to the nearest 10 SF; shares and percentage gaps to whole percents.
The data
Days on market is always shown in days.
8.3 Test results
Every test behind every gold box. Statistic, degrees of freedom (df), p-value, the threshold it must beat, and the size of the difference.
8.3.1 Quartiles by net sale price
Too few sales in a group to test.
8.3.2 Quartiles by living area
Too few sales in a group to test.
8.3.3 Quartiles by year built
Too few sales in a group to test.
8.3.4 View and no view
Measure
Test
Statistic
df
p-value
Threshold
Real difference?
Effect size
Size
Net sale price
Mann–Whitney U
U = 62.00
—
0.0111
p < 0.0063
Unclear
rank-biserial r = 0.722
large
Net price per SF
Mann–Whitney U
U = 38.00
—
0.8884
p < 0.0063
Unclear
rank-biserial r = 0.056
negligible
Living area
Mann–Whitney U
U = 60.00
—
0.0206
p < 0.0063
Unclear
rank-biserial r = 0.667
large
Year built
Mann–Whitney U
U = 13.00
—
0.0290
p < 0.0063
Unclear
rank-biserial r = 0.639
large
Days on market
Mann–Whitney U
U = 43.50
—
0.5003
p < 0.0063
Unclear
rank-biserial r = 0.208
small
Discount from original list
Mann–Whitney U
U = 31.00
—
0.6730
p < 0.0063
Unclear
rank-biserial r = 0.139
small
Price cut before sale
Chi-square
χ² = 0.14
1
0.7066
p < 0.0063
Unclear
Cramér’s V = 0.091
negligible
Seller paid closing costs or repairs
Chi-square
χ² = 0.49
1
0.4858
p < 0.0063
Unclear
Cramér’s V = 0.169
small
8.4 Data notes
Left out of the analysis: 4 new-construction sales (basic statistics only, section 7); nothing else. Statistics: Python, NumPy 2.5.3, SciPy 1.18.1.
8.5 References
Cohen, J. (1988). Statistical Power Analysis for the Behavioral Sciences (2nd ed.). Erlbaum.
Cramér, H. (1946). Mathematical Methods of Statistics. Princeton University Press.
Dunn, O. J. (1961). Multiple comparisons among means. JASA, 56(293), 52–64.
Kerby, D. S. (2014). The simple difference formula: an approach to teaching nonparametric correlation. Comprehensive Psychology, 3, 11.IT.3.1.
Kruskal, W. H., & Wallis, W. A. (1952). Use of ranks in one-criterion variance analysis. JASA, 47(260), 583–621.
Mann, H. B., & Whitney, D. R. (1947). On a test of whether one of two random variables is stochastically larger than the other. Annals of Mathematical Statistics, 18(1), 50–60.
Pearson, K. (1900). On the criterion that a given system of deviations… Philosophical Magazine, 50(302), 157–175.
Tomczak, M., & Tomczak, E. (2014). The need to report effect size estimates revisited. Trends in Sport Sciences, 21(1), 19–25.