For a sample with M = 50 and s = 12, what is the X value corresponding to z = –0.25?
a. 47 c. 46
b. 53 d. 54
A
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In research using questionnaires:
a. the interviewer must ask leading questions b. maintaining the participants' attention is never a problem c. the answers are never open-ended d. the results will be meaningless unless the sample of respondents is representative of the population of interest e. both b and c
One of the newest brain-scanning techniques that is sometimes called a virtual lesion is
A. electroencephalogram (EEG). B. functional magnetic resonance imaging (fMRI). C. transcranial magnetic stimulation (TMS). D. positron emission tomography (PET).
To be considered reliable, a test-retest correlation between two administrations of the same questionnaire ideally should be ________ or greater.
A. -.40 B. .00 C. .25 D. .70
________ are professionals with a PhD or PsyD who have also completed a postgraduate internship. They specialize in assessment and treatment of psychological difficulties.
A. Clinical psychologists B. Psychoanalysts C. Psychiatrists D. Psychiatric social workers