thesis_Daniela Noethen_print final - Jacobs University

Multilevel Investigation of Antecedents of Knowledge Sharing and Seeking in Teams
When individual-level predictors were added
, (1)
and when team-level predictors were added
. (2)
In order to test our general propositions that influences on sharing and seeking differ as
well as influences at the individual and team level, we defined contrasts for the respective
coefficients in HLM (Enders & Tofighi, 2007; Hox, 2002). A contrast is a composite
hypothesis on a set of parameters that postulates, for example, that parameters are equal.
Contrasts are tested, automatically within HLM 6.06, with an asymptotic chi-square test (Hox,
2002; Raudenbush & Bryk, 2002; Tabachnick & Fidell, 2001). To ascertain if individual age
has the same association with both sharing and seeking, we tested the null hypothesis
represented by the contrast 1* coefficient for individual-level age (sharing) + (-1)* coefficient
for individual-level age (seeking) = 0. Likewise, to determine if age has the same association
with sharing at the individual and team level, the null hypothesis represented by the contrast
1* coefficient for individual-level age (sharing) + (-1)* coefficient for team-level age
(sharing) = 0.
2.5. Results
2.5.1. Descriptive statistics
Table 1 depicts the descriptive statistics, ICC(1)s, reliability coefficients, and zero-order
correlations. However, estimations in this correlation matrix should be interpreted with
caution, since they only depict individual level zero-order correlations and do not take the
non-independence of the data into account.
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