Communication competence factors as moderators to the relationship between user participation and information quality

PARTICIPATION AND INFORMATION QUALITY
Journal of Information Technology Management Volume XX, Number 4, 2009
8
Users will be asked to rate the extent to which
they apply the cognitions when they interact with other
people, on the scale from 1 to 5; where 1 is “never true of
me” and 5 is “always true of me.” (See Appendix E.)
Communication Apprehension: 
Communication
apprehension is measured by the Personal Report of
Communication Apprehension instrument developed by
McCroskey [26]. The instrument measures personal
communication apprehension in the following four
contexts: public speaking, dyadic interaction, small
groups, and large groups. Users will be asked to rate their
levels of personal communication apprehension on a scale
from 1 to 5, from “Strongly disagree” to “Strongly
Agree.” (See Appendix F.)
RESULTS
Reliability Test
Cronbach’s alpha was used to measure the
reliability of each variable. Table 1 presents the alpha
coefficients for both before and after items deletion. Five
of the variables (i.e., user’s experiences in current system,
planning cognition, modeling cognition, presence
cognition, and communication apprehension) needed to
be modified by dropping some items to improve their
convergent validities. All variables before deletion
showed alpha coefficients at satisfactory level (>0.70),
except for presence cognition. However, the coefficient of
presence cognition was improved after deleting some
items that did not load well on the corresponding factor
(from 0.5941 to 0.7363). On the other hand, the alpha
coefficient of user’s experiences in current system was
above 0.7 before deletion but dropped to 0.6974 after
deleting some items that had low loading to the
corresponding factor.
Validity Test
Descriptive statistics for each variable are
presented below. Table 2 and 3 show the descriptive
statistics for each of the cognition in the communication
competence construct.
Table 1: Cronbach Alpha Before and After Dropping Select Items
I don't want to k
Before Deletion
After Deletion
Variables
Number of
Items
Cronbach alpha
Coefficient
Number of
Items
Cronbach
Alpha
Aoefficient
User participation
9
0.96
no deletion
Information quality
9
0.96
no deletion
User's experiences in current system
5
0.73
2
0.7
User's experiences in current job
3
0.81
no deletion
Planning cognition*
5
0.74
2
0.81
Modeling cognition*
4
0.81
3
0.84
Presence cognition*
4
0.59
2
0.74
Reflection cognition*
5
0.92
no deletion
Consequence cognition*
4
0.89
no deletion
Communication apprehension
24
0.96
21
0.96
* Variables in cognitive communication competence

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COMMUNICATION COMPETENCE FACTORS AS MODERATORS TO THE RELATIONSHIP BETWEEN USER