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ERIC Number: ED091214
Record Type: Non-Journal
Publication Date: 1974-Apr-17
Pages: 74
Abstractor: N/A
Reference Count: N/A
ISBN: N/A
ISSN: N/A
A Search for Subscales in the "Science Process Inventory."
Bates, Gary C.
Reported are the findings of a research project designed to identify subscales in the "Science Process Inventory" (SPI) developed by Welch in the 1960's to assess student knowledge about the nature and processes of science. Form D of the instrument was used with a random subsample of 435 students who were included in the Harvard Project Physics summative evaluation which used a national random sample of physics classes in the United States. Factor analysis of 43 items selected on the basis of moderate difficulty level and demonstrated discriminating power did suggest five factor scales of three to four items each. These "protoscales" are considered to hold promise for developing useful scales of 10-20 similar items. Also discussed in this report are several issues related to the construction of a multidimensional instrument for measuring student knowledge about the nature and processes of science. Appendices are also included with the report. (Author/PEB)
Publication Type: Speeches/Meeting Papers
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A