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Testing & Measurement (Psychology & Counseling, Books): Amazon KDP category data
Amazon Books Best Sellers data for Testing & Measurement (Psychology & Counseling, Books), updated Nov 2, 2026: median price $30.07, median 71 reviews, average rating 4.6 and a KDPTop opportunity score of 34/100 (highly competitive).
| Price range (middle 50%) | $17.62 – $48.80 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 4% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 1% of the parent category Psychology & Counseling (10,848), one of the easier corners under it.
- At $30.07 its median price beats 89% of Books categories, leaving more margin per copy.
- Only 4% of its best sellers are under 90 days old, fewer than in 82% of Books categories: established titles hold the list.
Top 10 Testing & Measurement best sellers
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ACT, CBT & DBT Workbook: 3 in 1: Ultimate Guide to Overcoming Anxiety and Depression With 180+ Acceptance & Commitment, Cognitive, and Dialectical Behavioral Therapy Exercises (Inner Growth)
by Miriam Blake
- List rank#1
- Price$22.79
- Rating4.7
- Reviews564
-
Anxious, Avoidant, and Disorganized Attachment Recovery Workbook: Apply Attachment Theory to Understand Your Behavior Patterns, Improve Emotional Regulation, and Build Secure & Healthy Relationships
by Lulu Nicholson
- List rank#2
- Price$17.99
- Rating4.6
- Reviews193
-
The All-In-One Attachment Style Workbook for Women - Anxious, Avoidant & Disorganized: 100+ Practical Exercises To Build Secure, Lasting Love (Healing Books)
by Nikki Starling
- List rank#3
- Price$24.99
- Rating4.8
- Reviews130
-
Essentials of Assessing, Preventing, and Overcoming Reading Difficulties (Essentials of Psychological Assessment)
by David A. Kilpatrick
- List rank#4
- Price$25.75
- Rating4.8
- Reviews716
-
Session Notes Notebook: Session Notebook For Therapists
by Client Notes Publishing
- List rank#5
- Price$7.99
- Rating4.4
- Reviews197
-
Shadow Work Journal & Workbook: Therapist Approved 5 in 1 Self Therapy Book to Explore Your Depths, Repair Inner Wounds and Integrate Your Shadows
by Olivia K. Renner
- List rank#6
- Price$23.45
- Rating4.6
- Reviews726
-
Parent Training for Disruptive Behavior: The RUBI Autism Network, Parent Workbook (Programs That Work)
by Karen Bearss
- List rank#7
- Price$46.64
- Rating4.7
- Reviews192
-
Where to Start and What to Ask: An Assessment Handbook
by Susan Lukas
- List rank#8
- Price$23.69
- Rating4.6
- Reviews511
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Session notes notebook for Therapist Counselors Coaches and Social worker, Customized Log Book To Record Client Problems, Progress, Plans For Psychotherapists | flower cover design
by Brian P. Ward
- List rank#9
- Price$6.98
- Rating4.3
- Reviews59
-
Practice Test for the CogAT Grade 1 Form 7 Level 7: Gifted and Talented Test Prep for First Grade; CogAT Grade 1 Practice Test; CogAT Form 7 Grade 1, ... One, Gifted and Talented Workbooks Grade 1
by Gifted and Talented CogAT Test Prep Team
- List rank#10
- Price$12.99
- Rating4.6
- Reviews425
Same niche in Kindle eBooks: Testing & Measurement
FAQ
Is Testing & Measurement a good niche for Amazon KDP?
Its KDPTop opportunity score is 34/100, which makes it highly competitive. The median best seller has 71 reviews and sells for $30.07.
How many reviews do you need to rank in Testing & Measurement?
The median best seller has 71 reviews, and 52% of them have fewer than 100.
What do Testing & Measurement best sellers cost?
The median price is $30.07; half of the best sellers are priced between $17.62 and $48.80.
Can new books break into Testing & Measurement?
4% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.