The leadership model that integrates the expectancy model of motivation with the Ohio State University leadership research is a. path-goal. b. Fiedler's. c. leader-participation. d. autocratic-democratic. e. leader-member exchange.

# Brief Explanations:<br />The path-goal leadership model integrates the expectancy theory of motivation by proposing that leader behavior is effective to the extent that leaders clarify the path to various goals of interest to the followers, and that these paths coincide with the expected rewards. It is built upon the research from the Ohio State University leadership studies which identified two critical dimensions of leadership behavior: initiating structure and consideration.<br /><br /># Answer:<br />A. path-goal.