Mathematics Anxiety and Mathematics Self-efficacy in Relation to Medication Calculation Performance in Nurses Page: 44
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18.1194, p = 0.000). There was not a significant difference between (age and years in practice)
and scores. In an experimental study by Bayne and Bindler (1997), three types of instruction
were compared with a control group; the three types of instruction were classroom, self-study,
and computer aided instruction (CAI). Scores improved most for the classroom group, next for
the control group, with no change in the self-study group. The CAI group was least satisfying,
and there were no significant differences. Scores on the pretest ranged from 25% to 100%, with a
mean of 75.7%, and scores on the posttest ranged from 30% to 100%, with a mean of 80%. They
also found a strong positive correlation (p < 0.001) between the nurses' self-assessment of
comfort and skill level with medication calculation pretest and posttest scores Questions
requiring the most steps in the process of calculation were found by the participants to be the
most difficult to answer.
Ashby (1997) studied 62 practicing medical-surgical nurses to determine if there are
more errors with IV medication calculations when conversion formulas are not provided, when
more than one calculation is required, or when fractions or decimals are used. Differences were
investigated between years functioning as a medical-surgical nurse, type of RN degree,
experience with IV medications, skill perception, and self-reports on whether medication
calculation and administration are stressful tasks. On the Bayne-Bindler Medication Calculation
test (1988), the scores ranged from 45% to 100%. Years of experience, educational preparation,
and IV experience showed no statistical significant differences. Fewer than 20% of the nurses
rated their skill as above average, but 43.5% scored 90% or higher, and almost 60% of the nurses
reported that the medication calculation and administration was a stress-producing task (Ashby,
1997). She concluded that because 56.4% of the nurses in the sample could not pass a
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Melius, Joyce. Mathematics Anxiety and Mathematics Self-efficacy in Relation to Medication Calculation Performance in Nurses, dissertation, May 2012; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc115119/m1/52/: accessed January 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .