Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Theorems of Pappus and Guldinus: Problem Solving01:12

Theorems of Pappus and Guldinus: Problem Solving

773
Pappus and Guldinus's theorems are powerful mathematical principles that are used for finding the surface area and volume of composite shapes. For example, consider a cylindrical storage tank with a conical top. Finding the surface area or volume can be challenging for such complex shapes. These theorems are particularly useful in calculating the volume and surface area of such systems. Here, the cylindrical storage tank with a conical top can be broken down into two simple shapes: a...
773
Cognitive Learning01:21

Cognitive Learning

459
Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
459
Castigliano's Theorem: Problem Solving01:14

Castigliano's Theorem: Problem Solving

705
The deflection of a simply supported beam that carries a central point load can be analyzed using structural mechanics principles, particularly by applying Castigliano's theorem. This theorem relates the displacement at the load application point to the partial derivatives of the strain energy in the structure. The simply supported beam with a point load at its center has symmetric reaction forces at the supports, each bearing half of the load. The bending moment at any point along the beam...
705
Mohr's Circle for Moments of Inertia: Problem Solving01:14

Mohr's Circle for Moments of Inertia: Problem Solving

2.2K
Mohr's circle is a graphical method for determining an area's principal moments by plotting the moments and product of inertia on a rectangular coordinate system. This circle can also be used to calculate the orientation of the principal axes.
Consider a rectangular beam. The moments of inertia of the beam about the x and y axis are 2.5(107) mm4 and 7.5(107) mm4, respectively. The product of inertia is 1.5(107) mm4. Determine the principal moments of inertia and the orientation of the major and...
2.2K
Biot-Savart Law: Problem-Solving00:59

Biot-Savart Law: Problem-Solving

2.8K
The magnitude and direction of a magnetic field created by a steady current can be calculated using the Biot-Savart law.
Consider a mobile phone battery bank as a source of steady current, which flows through the wire connected between the two. What is the magnitude of the magnetic field created by this current at a field point P?
To estimate the magnitude of the total magnetic field, we first consider a small current element of length dl, at a distance r from the field point. Now the following...
2.8K
Principle of Moments: Problem Solving01:30

Principle of Moments: Problem Solving

882
The principle of moments is a fundamental concept in physics and engineering. It refers to the balancing of forces and moments around a point or axis, also known as the pivot. This principle is used in many real-life scenarios, including construction, sports, and daily activities like opening doors and pushing objects.
One such scenario involves a pole placed in a three-dimensional system with a cable attached. When a tension is applied to the cable, the moment about the z-axis passing through...
882

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A counterfactual explanation for recency effects in double prevention scenarios: Commentary on Thanawala and Erb (2024).

Cognition·2025
Same author

Modeling confidence in causal judgments.

Journal of experimental psychology. General·2024
Same author

Double Prevention, Causal Judgments, and Counterfactuals.

Cognitive science·2022
Same author

Confidence and gradation in causal judgment.

Cognition·2022
Same author

Making moral principles suit yourself.

Psychonomic bulletin & review·2021
Same author

Counterfactual thinking and recency effects in causal judgment.

Cognition·2021
Same journal

Investigating the origins of partisanship: What motivates children to preferentially endorse their ingroups' claims?

Cognition·2026
Same journal

People make graded judgments about the inconceivable.

Cognition·2026
Same journal

The self as an image: Appearance and belief in visual representations of one's own face.

Cognition·2026
Same journal

Corrigendum to 'Consonant, vowel, and tone cues in early wordform recognition: Evidence from Cantonese-learning infants' [Cognition 275 (2026) 106624].

Cognition·2026
Same journal

Identifying distinct sources of whole number interference in children's decimal comparison: the role of numerical magnitude and inhibitory control.

Cognition·2026
Same journal

Evidence for abstract spatial concept learning in young animals.

Cognition·2026
See all related articles

Related Experiment Video

Updated: Jul 30, 2025

The Use of the Puzzle Box as a Means of Assessing the Efficacy of Environmental Enrichment
06:50

The Use of the Puzzle Box as a Means of Assessing the Efficacy of Environmental Enrichment

Published on: December 29, 2014

11.8K

The know-how solution to Kraemer's puzzle.

Carlotta Pavese1, Paul Henne2

  • 1Philosophy, Cornell University, United States of America.

Cognition
|May 16, 2023
PubMed
Summary
This summary is machine-generated.

People sometimes judge actions as intentional but their necessary steps as unintentional, even if equally likely. This "Kraemer effect" is explained by perceived differences in know-how regarding the means versus the ends.

Keywords:
Experimental philosophyIntentionalityKnow-how

More Related Videos

The Innovation Arena: A Method for Comparing Innovative Problem-Solving Across Groups
14:14

The Innovation Arena: A Method for Comparing Innovative Problem-Solving Across Groups

Published on: May 13, 2022

5.9K
Generating Strictly Controlled Stimuli for Figure Recognition Experiments
05:39

Generating Strictly Controlled Stimuli for Figure Recognition Experiments

Published on: March 18, 2019

5.3K

Related Experiment Videos

Last Updated: Jul 30, 2025

The Use of the Puzzle Box as a Means of Assessing the Efficacy of Environmental Enrichment
06:50

The Use of the Puzzle Box as a Means of Assessing the Efficacy of Environmental Enrichment

Published on: December 29, 2014

11.8K
The Innovation Arena: A Method for Comparing Innovative Problem-Solving Across Groups
14:14

The Innovation Arena: A Method for Comparing Innovative Problem-Solving Across Groups

Published on: May 13, 2022

5.9K
Generating Strictly Controlled Stimuli for Figure Recognition Experiments
05:39

Generating Strictly Controlled Stimuli for Figure Recognition Experiments

Published on: March 18, 2019

5.3K

Area of Science:

  • Cognitive Science
  • Philosophy of Mind
  • Action Theory

Background:

  • Intentional action is often analyzed by distinguishing between ends and the means to achieve them.
  • Previous research has not fully explained why people sometimes attribute intentionality to ends but not the means.

Purpose of the Study:

  • To investigate the Kraemer effect, a phenomenon where agents are judged to intentionally bring about ends but not the means to those ends.
  • To propose and test a novel explanation for the Kraemer effect based on perceived differences in know-how.

Main Methods:

  • Replication of the Kraemer effect across various non-moral and moral scenarios.
  • Experimental manipulation and measurement of perceived know-how regarding means and ends.

Main Results:

  • The Kraemer effect was successfully replicated in diverse experimental settings.
  • Perceived differences in know-how significantly predicted judgments of intentionality for means and ends, supporting the proposed explanation.

Conclusions:

  • The study provides empirical support for the know-how explanation of the Kraemer effect.
  • This research highlights the crucial role of perceived know-how in attributions of intentionality in action theory.