The reliability and validity for the initial testing of the SHOTS survey with over 600 parents was very strong. In addition, in a second study using the SHOTS survey (Baker, 2010), the reliability and validity measures were equally as strong as the initial study.
Internal Consistency: Internal consistency is supported in two studies with Cronbach's alpha's of .93 (Table 1)
Table 1. Internal Consistency Reliability for the Total SHOTS Scale and Subscales
Temporal Reliability: Support for stability across time was demonstrated with a Pearson's R of .851 (Niederhauser, 2010)
A detailed description of the reliability and validity can be found in the following manuscript:
Niederhauser, V. (2010, in press). Measuring Parental Barriers to Childhood Immunizations: The Development and Validation of the "Searching for Hardships and Obstacles To Shots (SHOTS)" Instrument. Journal of Nursing Measurement, Summer 2010.
A $50 processing fee and a licensing agreement is required to use the SHOTS survey. In addition, a licensing agreement is required for incorporation of the SHOTS survey into computer software. Contact Dr. Victoria Niederhauser (niederha@hawaii.edu) regarding licensing agreements. Inquire Now
| Population | Total Scale Alpha | Access Alpha | Concerns Alpha | Importance Alpha | Study |
| Parents of Children birth-6 years (n=655) | .93 | .92 | .88 | .86 | Niederhauser, 2010 |
| Hmong Parents of Children birth-8 years (n=443) | .93 | .91 | .87 | .84 | Baker, 2009 |