Glossary D
Glossary D
Difficult temperament is defined as the temperamental profile in which the child is irregular in daily routines and adapts slowly to new experiences, usually responding negatively and intensely.
Difficulty index Indicates refers to the proportion or percentage of pupils who answered a test item correctly.
Diffuse status characteristic is a term in Status characteristics theory, general personal qualities such as age, race, and ethnicity that people consider when estimating the relative competency, ability, and social value of themselves and others.
Diffusion refers to a threat to internal validity that occurs when a treatment effect spreads from the treatment group to the control group, often from participants talking to each other. Diffusion is also defined as the random movement of molecules from an area of high concentration to an area of low concentration.
Diffusion of responsibility refers to the phenomenon whereby each bystander's sense of responsibility to help decreases as the number of witnesses increases.
- Diffusion of responsibility (I=N–t) : Diffusion of responsibility (I=N–t) refers to the Power law showing that impact (I) of other people decreases as a function of the number (N) of other people