question archive A researcher has recently developed a new measure of depression
A researcher has recently developed a new measure of depression
Subject:StatisticsPrice: Bought3
A researcher has recently developed a new measure of depression. They have conceptualized depression, using existing theory, as three separate but interrelated dimensions. Five items were written to reflect the cognitive aspects of depression, five were written to measure behavioral aspects of depression, and five items were written to measure affective aspects of depression. After conducting a factor analysis the researcher has evidence for the three hypothesized dimensions.
A) What reliability estimate is most appropriate in Scenario A?
B) How many of these reliability estimates should the researcher obtain? Explain.
C) The researcher decides to use this instrument to investigate the quality of an intervention designed to alleviate depression. She decides to conduct a test-retest correlation to examine reliability. Explain why this procedure is inappropriate.
