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In particular, Grestner and Day (1997) found only 24 out of 85 studies collected LMX<br />

data from both groups. As only a few studies have examined LMX from both<br />

perspectives, there is a possibility of the results of LMX being biased, which might<br />

further inhibit a robust analysis of the LMX agreement (Schriesheim et al., 1999). It is<br />

therefore necessary for LMX research to focus on both the leaders’ and the members’<br />

perspectives (Zhou, 2003).<br />

Additionally, one early study (Schriesheim et al., 1999) found that correlation between<br />

supervisor’s and subordinate’s LMX scores range from .50 to .16. Correlation is the<br />

statistical analysis performed to analyse relationships between variables. (Székely,<br />

Rizzo, & Bakirov, 2007). Evidences (e.g. Gerstner & Day, 1997; Schriesheim et al.,<br />

1999) have made it difficult to understand that both the supervisors and the<br />

subordinates are rating the same construct, which weakens the theoretical<br />

understanding of the LMX.<br />

According to role theory, the exchanges between the supervisor and the subordinate<br />

develop during the role making process and eventually reach a state of equilibrium<br />

(Holly, Schoorman, & Hwee Hoo, 2000). As a result, the quality of the relationship<br />

may be mutually perceived. Theoretical explanations of LMX note that the exchange is<br />

objective and separate from the individuals involved(Graen & Uhl-Bien, 1995).<br />

Furthermore, it is believed that the supervisor and subordinate scales of the LMX are<br />

merely two different measures of the same construct; as a result they are proposed to<br />

agree with each other (Uhl-Bien, 2006). In reality however this makes little sense, as<br />

the correlations between the two perceptions of the LMX have been consistently found<br />

to be low.<br />

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