Table of Contents
Abstract
The Induction Problem is a specialized, 19-item psychological measure designed to evaluate an individual’s problem-solving ability and the specific cognitive strategies employed during complex reasoning tasks. Developed by Benjamin Burack in 1950, the measure’s primary focus is the analysis of the nature and efficacy of the methods used to approach novel problems, rather than just the correctness of the final answer. Each item consists of five groups of letters, requiring the respondent to identify the single dissimilar group based on an underlying inductive rule. Following the selection, respondents must provide a verbal or written explanation of their choice, which is then assessed using four structured follow-up questions designed to detect evidence of specific problem-solving techniques and meta-cognitive awareness.
Keywords
Induction Problem, Problem-solving ability, Inductive reasoning, Cognitive strategy, Problem-solving techniques, Letter groups, Psychological assessment, Reasoning problems.
Authors
Benjamin Burack
Purpose
The primary purpose of the Induction Problem scale is the detailed, qualitative analysis of the cognitive steps and strategies utilized by individuals when confronting complex reasoning problems. It was specifically created to support foundational psychological research into the effectiveness and characteristics of various “methods of attack” employed during inductive tasks.
The measure aims to move beyond a simple metric of success or failure by requiring respondents to articulate their thought process. This emphasis on the process allows researchers to gather detailed data on structured methods, such as defining variables and applying past experience, which are crucial components of effective problem solving.
Construct
The central construct measured is Inductive Problem-Solving Strategy and Efficacy. The scale assesses the respondent’s capacity for identifying underlying rules, patterns, or principles (induction) in ambiguous, non-verbal stimuli (letter groups). The successful identification of the deviant group requires inductive reasoning, where the solver must synthesize a general principle from multiple specific examples.
Crucially, the instrument measures the overt application of structured cognitive strategy through four mandatory follow-up questions administered after each problem. These questions systematically probe the presence of key methodological steps:
- Clear formulation of the problem.
- Analysis into major variables.
- Application of past experience.
- Other methods of attack.
Validity
Information regarding modern psychometric validity (e.g., construct, concurrent, or predictive validity coefficients) was not explicitly detailed in the original 1950 monograph describing the scale’s development. The study primarily focused on the experimental application of the measure to analyze the relationship between expressed methods of attack and solution success, thereby establishing strong face and content validity for the purpose of studying problem-solving processes.
Reliability
Specific internal consistency measures (e.g., Cronbach’s Alpha) or test-retest reliability data for the Induction Problem scale were not provided in the original source material.
Factor Analysis
Formal factor analysis was not reported in the foundational work by Burack (1950). Given the scale’s purpose as an experimental tool focused on qualitative process assessment rather than strictly psychometric factor structure, traditional factor analysis may not have been deemed necessary during its initial development.
Instrument
Test Type: Performance-based Inductive Reasoning Test / Cognitive Process Assessment
Format: 19 multiple-choice items (five options per item), followed by an open-ended verbal explanation and four structured follow-up questions.
Language Available: English (Original study)
Population Group: General Adult Population
Age Group: Adolescents and Adults (typically used with college-level participants in early research)
Population Details: The scale was developed for experimental research on cognitive processes and methods of attack on reasoning problems, often administered to university students or comparable adult groups.
Test Methodology: For each of the 19 items, the respondent must identify which of the five letter groups is the outlier (does not share the common rule established by the other four groups). The scoring involves both the accuracy of the choice and the qualitative analysis of the subsequent explanation based on the four structured criteria.
Keywords
Psychological Monographs, Inductive reasoning test, Problem solving, Cognitive assessment, Burack, Reasoning skills, Experimental psychology, Method of attack.
Authors
Author ORCID Identifier: Not specified in original source.
Affiliation Email addresses: Not specified in original source.
Correspondence Address: Not specified in original source (Original publication associated with the Department of Psychology, Northwestern University).
Permissions & Fee and Test Year
Test Year: 1950
Permissions and Fee: Permissions and fee structure are not specified in the original publication. Given its age and status as an academic research tool published in a psychological monograph, the instrument itself may be considered public domain or accessible through academic research channels, though verification is necessary.
Reference’s
Burack, Benjamin. (1950). The nature and efficacy of methods of attack on reasoning problems. Psychological Monographs: General and Applied, Vol 64(7), i-26. doi: https://dx.doi.org/10.1037/h0093625
Items of the Induction Problem
IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.
| Items | ||||
| In the five groups of letters below, notice that four of the groups have something in common. The one which is not like the other has been marked. | ||||
| YLNPJ | XBPZR | YNTFH | YRGSW | YHDLY |
| Four of the groups begin with the letter Y. The one which does not begin with Y is marked. Look at the next problem. | ||||
| AAXVP | FNTBB | HQTQX | JDSWR | MECTE |
| Four of the groups have a repeated letter. The first, second, third, and fifth groups have the letters AA, BB, QQ, and EE respectively. The fourth group does not have a repeated letter. It is unlike the other groups so it is marked. | ||||
| Work the next two problems. Put a mark under the group which is different in each case. | ||||
| ABCDE | XYZPS | EFGHI | CXVTN | PJKLM |
| EDCBA | VWXYZ | IHGFE | JKLMN | SBTGK |
| In the first problem four of the groups have letters occurring in alphabetical order. You should have put a mark under the fourth group. | ||||
| In the second problem four of the groups are in alphabetical order, left to right or right to left. The fifth group should be marked. | ||||
| Look at the next two problems. Try to find which one should be marked. | ||||
| BDHQX | SDAPZ | GXMOT | LEZTQ | NXUFS |
| KCUPE | FZEGO | UMBXA | APIQT | LNUKH |
| In the first problem four of the groups each contain a vowel. The first group should be marked. In the second problem four of the groups have two vowels. Group five should have been marked. Now work the next two problems. In each case put a mark under the group which is different. | ||||
| JPIDX | KPHMA | LPZSU | MPLJE | NPRWO |
| PZDDD | SSSPB | JPPPN | HNNNX | BQBFB |
| In the first problem four of the groups have the vowel in the last place. The first group should be marked. | ||||
| In each group of the second problem there is a letter occurring three times. In four of the groups the three identical letters are together. The last group should be marked. | ||||
| Work the problems which follow. | ||||
| 1. VBCDF | WQRSH | XIJKF | YLMNF | ZABCF |
| 2. ELMNE | FABCF | GOPQG | HZTMH | IVWXI |
| 3. LGBGM | TBKAK | ZDNEN | FRLLC | VPSPW |
| 4. XVTQZ | BFDHJ | HDFBJ | JBFDH | HJFBD |
| 5. BCAHV | BCOHV | DZELM | DKILM | DTCLM |
| 6. FCRCT | CJCCL | CPCSC | CCRCQ | CKCFC |
| 7. BWBRB | BBCBS | RBMBB | BNBBV | XBBZB |
| 8. BQHTM | AUIEO | ZDKRN | TMPZB | HXKQN |
| 9. EFGHI | EDCBA | UTSRQ | ALRXI | OPQRS |
| 10. CEDGH | FAGHB | DKCES | LMCED | MPCEK |
| 11. CFAGG | PESRP | VROVF | NOMSN | PROTS |
| 12. ONMLK | LKJIH | UTSRQ | GKMOQ | HGFED |
| 13. ALMNA | PBCDP | EVRHE | UJKLU | IDVLI |
| 14. CCPPR | MSSMR | TRRTR | JNNJR | WWDDR |
| 15. BSQVM | TDPDX | GHGRG | FPSFR | MPMBM |
| 16. ACTRM | ABSPQ | CDTGH | PQBXY | MNCST |
| 17. JKLMV | BPQRS | KNWXY | BODQT | CXTRF |
| 18. FGHLM | CDFGH | JKMNO | STVWX | PQSTU |
| 19. VMSAT | DGMSB | SPLOM | QTMSC | MSDHP |
Cite this article
Mohammed looti (2025). Induction Problem. Psychological Scales & Instruments Database. Retrieved from https://db.arabpsychology.com/scales/induction-problem/
Mohammed looti. "Induction Problem." Psychological Scales & Instruments Database, 28 Oct. 2025, https://db.arabpsychology.com/scales/induction-problem/.
Mohammed looti. "Induction Problem." Psychological Scales & Instruments Database, 2025. https://db.arabpsychology.com/scales/induction-problem/.
Mohammed looti (2025) 'Induction Problem', Psychological Scales & Instruments Database. Available at: https://db.arabpsychology.com/scales/induction-problem/.
[1] Mohammed looti, "Induction Problem," Psychological Scales & Instruments Database, vol. X, no. Y, ص Z-Z, October, 2025.
Mohammed looti. Induction Problem. Psychological Scales & Instruments Database. 2025;vol(issue):pages.