Development of a Measuring Test for a Basic Scientific Ability for Mattayomsuksa One Students According to the 2551 BE Basic Education Core Course under Si Sa Ket Primary Educational Service Area Office 1

Abstract

The objectives of the research were 1) to develop a test to measure a scientific ability for Mattayom Suksa 1 students  according to the 2551 BE Basic Education core course, 2) to find out the quality of the test to measure a scientific ability for Mattayom Suksa 1 students under Si Sa Ket Primary Educational Service Area Office 1 and 3) to construct norms and handbooks for using the test for a scientific ability.

The samples used in the research were 115 students MattayomSuksa1 students from the schools under Si Sa Ket Primary Educational Service Area Office 1, derived by a stratified random sampling. The research instruments consisted of a 30- item test for an environment understanding, a 30-item test for a reasoning process and 60 items for measuring an attitude towards science.  Statistics used were mean, standard deviation, IOC, Pearson’s correlation coefficient, discrimination value and reliability value.

The research findings were as follows:

1. A test for an environment understanding had a content validity ranging from 0.33-00; difficulty value ranged from 0.44-0.76 and discrimination value ranged from 0.32-0.96; Reliability was equivalent to 0.90;  standard error was equivalent to 2.22
2. A test for measuring a reasoning process had a content validity ranging from 0.33-1.00; difficulty value ranged from 0.36-0.72; discrimination value ranged from 0.32-0.77; confidence value was equivalent to 0.87;  standard error was equivalent to 2.37  and norms ranged from T28 to T65
3. A test item for measuring a science attitude  had a content validity ranging from 0.33-1.00;  discrimination and confidence value was equivalent to 0.98;  statistics with significance ranged from 0.01-0.001; a standard error in measuring was equivalent to 2.78 and norms ranged from T14  to T66
4. All the test items in the study had a content validity based on IOC ranging from 0.70-1.00 and a construct validity based on Pearson’s correlation coefficient in light of individual items and all items was related with statistical significance at 0.01 and 0.05.