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Which personality assessment tool did Raymond Cattell develop?
Dr. Raymond Cattell developed the
based on personality source traits, such as reserved-outgoing, trusting-suspicious, relaxed-tense, and so on.

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.