Which of the following is not one of the assumptions of the t-test for independent samples?

a. The populations of raw scores form normal distributions.
b. Their dependent scores measure an interval/ratio variable.
c. There is homogeneity of variance.
d. The standard deviation of at least one of the populations is known.


D

Psychology

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Unprocessed stimulation from the environment is first held in:

a. short-term store. b. sensory memory. c. long-term store. d. intermediate store.

Psychology

A nerve is a group of ________ bundled together

a) axons b) interneurons c) dendrites d) glial cells

Psychology

Which of the following is true about event-related potential (ERP)?

A. ERPs involve injecting the participant or patient with a harmless radioactive form of oxygen. B. ERPs provide excellent temporal resolution but poor spatial resolution. C. ERPs provide a much better measure of where brain activity occurs than EEG does. D. ERPs use magnetic fields to produce very finely detailed images of the structure of the brain and other soft tissues.

Psychology

Costa and McCrae are factor analytic personality theorists who

a) originated the Five-Factor Model of personality but have since abandoned it as discredited. b) have conducted research that supports the use of the Five-Factor Model as a clinical diagnostic tool. c) have not yet conducted research on the applicability of the Five-Factor Model in non-English-speaking cultures. d) suggested that the Five-Factor Model is not stable when used to assess maturational changes in personality across the life span.

Psychology