Students’ Conceptual Understanding of the Causal Pattern in Ecosystem

Khalifatulloh Fielardh, 2013 Dynamics Of Students Self Regulated Learning Within Encological Multi User Virtual Environment Universitas Pendidikan Indonesia | repository.upi.edu

b. Students’ Conceptual Understanding of the Causal Pattern in Ecosystem

SCCP-E This instrument was adm inistered to measure student’s conceptual under- standing of the causal patterns. This instrument consists of 15 true-false questions and 10 open-ended essay questions see Appendix A.2. The Ecosystem topic that are used as the context belong to the basic competency 4.1 “Analyze the relationship between the components of an ecosystem, change of matter and energy, and roles of human in maintaining ecosystem balance ” of the competency standard 4 “Describe roles of ecosystem’s components in energy flow and biogeochemical cycles, also the use of the components of an ecosystem for life”, in the Indonesian Educational Unit BNSP, 2006:178. This instrument was administered in the quantitative part of the study. Each question posed different indicators that referred to both ecosystem topic and causality see Table 3.3. Each indicator was then used to score the test. Table 3.2 Results of SCCP-E Factor Analysis calculated via ANATES Uraian Reliability Index: 0.89 very high EC CP Item Difficulty Discrimination Validity Decision EF DC 1a 0.7 very easy 0.02 low 0.14 very low Item revised 1b 0.60 medium 0.30 sufficient 0.56 sufficient Item used 1c 0.8 easy 0.36 sufficient 0.68 high Item used MC 1d 0.7 medium 0.57 high 0.61 high Item used MC DC 2a 0.5 medium 0.71 high 0.84 high Item used CC 2b 0.5 medium 0.59 high 0.79 high Item used 2c 0.5 medium 0.65 high 0.69 high Item used 2d 0.5 medium 0.64 high 0.86 high Item used BE DS 3a 0.5 medium 0.52 high 0.85 high Item used 3b 0.6 medium 0.45 high 0.75 high Item used note: EC= ecosystem content; EF= energy flow, MC= matter cycle, BE= balance in ecosystem; CP= causal patterns. DC= domino causality, MC= mutual causality, CC= cyclic causality, DS= dynamic stability. Due to low validity all of the True-False items were omitted from the study; Proportion of difficulty= easy:medium= 20:80 Khalifatulloh Fielardh, 2013 Dynamics Of Students Self Regulated Learning Within Encological Multi User Virtual Environment Universitas Pendidikan Indonesia | repository.upi.edu

c. Self-Regulated Learning Worksheet