Compare predictions
A useful comparison asks which observation would help distinguish accounts. Some explanations compete; others describe different levels of the same behavior.
What changes through learning?
Original thought experiment
A cue reliably predicts an event, while an action independently controls another outcome.
Classical conditioning
A previously neutral cue acquires control over a response when experience makes it informative about an important event. Acquisition, generalization and extinction describe changes in responding, rather than a permanent switch being installed.
Prediction to examine
Compare a cue that reliably precedes an outcome with one presented equally often but unrelated to it. Greater responding to the predictive cue would support associative learning.
Inspect evidence and limitsOperant conditioning
Reinforcement increases an action and punishment decreases it. Positive and negative describe adding or removing an event. Whether an event is a reinforcer is determined by its behavioral effect, not by the giver's intention.
Prediction to examine
Hold opportunities to respond constant and make an outcome contingent on one action. If the action subsequently increases, the outcome functioned as reinforcement in those conditions.
Inspect evidence and limitsSeparate cue-outcome learning from action-outcome learning. Both can operate in the same setting; a single observed response does not select one account.
Design a stronger test
Define the outcome before observing it. Specify the competing prediction, hold plausible confounds constant and consider whether the measurement captures the proposed process. A hypothetical result illustrates logic; it does not establish that either theory is correct.
Where does a dual-task cost come from?
Original thought experiment
Compare retaining verbal material during a verbal task and during a spatial task of matched difficulty.
Multi-store memory model
Attention selects some sensory information; control processes such as rehearsal maintain it and connect it with longer-term storage. The model separates hypothetical stores from the strategies that move or preserve information.
Prediction to examine
A delay with distraction should affect immediate recall differently from recall supported by established long-term knowledge. Distinct effects are more informative than a single overall memory score.
Inspect evidence and limitsWorking memory model
The phonological loop maintains verbal material, the visuospatial sketchpad handles spatial or visual information, and executive control coordinates processing. The episodic buffer was added later to explain integration across sources.
Prediction to examine
Two tasks relying on similar resources should interfere more than suitably matched tasks using different resources. Overall difficulty must be controlled before treating interference as evidence for separate components.
Inspect evidence and limitsDifferent interference patterns can challenge a single-store interpretation. Matching difficulty matters, and the multistore account also includes control processes.
Design a stronger test
Define the outcome before observing it. Specify the competing prediction, hold plausible confounds constant and consider whether the measurement captures the proposed process. A hypothetical result illustrates logic; it does not establish that either theory is correct.
Does the body have to come first?
Original thought experiment
Alter peripheral feedback while measuring subjective feeling and the relevant physiological pathway.
James-Lange theory of emotion
An event produces bodily responses, and their perception helps constitute a feeling. James and Lange developed related proposals independently; the label compresses differences between their accounts.
Prediction to examine
If bodily feedback contributes causally, changing that feedback should alter some aspect of reported feeling. Manipulations must distinguish effects on expression, attention and subjective experience.
Inspect evidence and limitsCannon-Bard theory of emotion
Central processing of an event generates subjective feeling and bodily activation without requiring the feeling to be produced by sensing the peripheral response first.
Prediction to examine
If peripheral feedback is reduced, emotional experience should not necessarily disappear. A convincing test must measure both central processing and the specific feedback pathway affected.
Inspect evidence and limitsThe accounts assign different roles to bodily feedback. Preserved feeling challenges a strong necessity claim but does not show that feedback never contributes.
Design a stronger test
Define the outcome before observing it. Specify the competing prediction, hold plausible confounds constant and consider whether the measurement captures the proposed process. A hypothetical result illustrates logic; it does not establish that either theory is correct.
How does context shape emotion?
Original thought experiment
Keep activation comparable and vary the meaning of an uncertain event.
Two-factor theory of emotion
Arousal contributes intensity while contextual interpretation helps identify what the arousal means. The account is particularly informative when the source of activation is uncertain.
Prediction to examine
With comparable arousal, different contextual explanations should sometimes produce different emotional reports. Clear information about the arousal source should reduce misattribution.
Inspect evidence and limitsCognitive appraisal theories
Appraisal concerns significance, responsibility and available responses. It need not be a slow verbal decision. Related theories differ in which appraisals they propose and how they order them.
Prediction to examine
The same event should produce different emotions when its meaning or perceived controllability changes. A stronger test manipulates interpretation while measuring rather than assuming the emotional effect.
Inspect evidence and limitsBoth predict a role for interpretation. Distinguishing them needs more than a context effect: specify arousal attribution, appraisal dimensions and their timing.
Design a stronger test
Define the outcome before observing it. Specify the competing prediction, hold plausible confounds constant and consider whether the measurement captures the proposed process. A hypothetical result illustrates logic; it does not establish that either theory is correct.
Does motivation always reduce stimulation?
Original thought experiment
After bodily needs are met, offer a choice between an unstimulating task and an engaging new puzzle.
Drive-reduction theory
A departure from a regulated state produces a drive, and behaviors associated with reducing that drive become more likely. The proposal links motivation with homeostatic regulation.
Prediction to examine
After a relevant deprivation, actions that previously reduced the deficit should increase. Satiation should reduce those actions if the same drive is the main influence.
Inspect evidence and limitsArousal approaches to motivation
Behavior can increase arousal when stimulation is low and reduce it when stimulation is excessive. The relation between activation and performance depends on what the task demands.
Prediction to examine
Increasing activation may help performance on an easy or well-practiced task yet hinder a demanding task at higher levels. A test should measure activation separately from performance.
Inspect evidence and limitsSeeking stimulation strains a general deficit-reduction explanation. It does not disprove homeostatic accounts of thirst or hunger.
Design a stronger test
Define the outcome before observing it. Specify the competing prediction, hold plausible confounds constant and consider whether the measurement captures the proposed process. A hypothetical result illustrates logic; it does not establish that either theory is correct.
Description or causal explanation?
Original thought experiment
Track behavior across situations while measuring broad traits, task expectations and relevant environmental opportunities.
Big Five personality model
Factor analysis groups covarying descriptors into openness, conscientiousness, extraversion, agreeableness and neuroticism. These are graded dimensions rather than five personality types. The descriptive structure is distinct from a causal account of why a person behaves as they do.
Prediction to examine
Scores should show useful consistency and patterned associations across measures. Predictions about specific acts remain probabilistic and should consider the situation and the time span observed.
Inspect evidence and limitsSocial cognitive theory
Expectations, self-efficacy and self-regulation shape choices. Those choices alter the environment, which supplies new feedback. Reciprocal determinism is an interaction proposal, not a claim that all three influences are equally strong.
Prediction to examine
After comparable instruction, task-specific efficacy should help predict persistence. A stronger causal test changes efficacy information while separating it from actual skill and resources.
Inspect evidence and limitsTrait dimensions summarize patterns; social cognitive variables propose processes. Their predictions may complement each other, so this is not a winner-takes-all contest.
Design a stronger test
Define the outcome before observing it. Specify the competing prediction, hold plausible confounds constant and consider whether the measurement captures the proposed process. A hypothetical result illustrates logic; it does not establish that either theory is correct.