Question: Three items X, Y, and Z exhibit item-total (point-biserial) correlations (r iT ) of .45,. .04, and -.23 respectively. What do the statistics tell us

Three items X, Y, and Z exhibit item-total (point-biserial) correlations (r_iT) of .45,. .04, and -.23 respectively. What do the statistics tell us about each of these three items?

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