Inferences about individuals based on the results of group data on the stability of intelligence test scores may be misleading because: reliability of group data may not be high enough for individual interpretation. scores for a single person can still vary widely. the group may not be representative of the population. the individual may not be part of the group.

european feudalism was a combination of legal and military customs in medieval europe that flourished between the 9th and 15th centuries. broadly defined, it was a way of structuring society around relationships derived from the holding of land in exchange for service or labour.

japanese feudalism. the era of feudalism in japan took place from the 12th through 19th centuries. during that period local rulers, either powerful families or military warlords, dominated the land, while the emperor was merely a figurehead and not a significant political presence.

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