scholarly journals ASSESSING THE STUDENTS’ UNDERSTANDING RELATED TO MOLECULAR GEOMETRY USING A TWO-TIER DIAGNOSTIC TEST

2014 ◽  
Vol 13 (6) ◽  
pp. 839-855
Author(s):  
Melis Arzu Uyulgan ◽  
Nalan Akkuzu ◽  
Şenol Alpat
Keyword(s):  
University Students ◽  
Key Words ◽  
Diagnostic Test ◽  
Reliability And Validity ◽  
Molecular Geometry ◽  
Resonance Structure ◽  
The Subject ◽  
The Mean ◽  
Second Tier ◽  
Validity Tests

In this research, the comprehension levels and misconceptions of university students on the subject of molecular geometry were determined via a two-tier diagnostic test consisting of 25 items developed by researchers. It was applied on 110 university students. The reliability and validity tests and item analyses were conducted in relation to the test, and the difficulty and discrimination indices of the items were detected. The reliability coefficient of the test was found to be 0.856 while the mean difficulty value of the test was 0.487. According to the findings obtained from the second tier of the test containing open end questions, the students had a great deal of wrong information and numerous misconceptions in relation to the molecular geometry. Such statements as “atoms move in the resonance structure” and “bond angles of two molecules having a trigonal pyramidal shape cannot be different” are counted among the most important misconceptions determined in the study. Key words: Misconception, molecular geometry, two-tier diagnostic test, university students.

SOME ASPECTS OF THE CONSTRUCTION OF THE THEMATIC TESTS FOR THE DIAGNOSIS OF COGNITIVE LEARNING OUTCOMES CHEMISTRY ENGINEERING STUDENTS

2015 ◽  
Author(s):  
Liudmila Gorbunova ◽  
Keyword(s):  
Key Words ◽  
Learning Outcomes ◽  
Diagnostic Test ◽  
Engineering Students ◽  
High Reliability ◽  
Cognitive Learning ◽  
Reliability And Validity ◽  
Educational Measurement ◽  
Selection Of ◽  
Cognitive Learning Outcomes

The article discusses the procedure of the preparation of test materials for the diagnosis of cognitive learning outcomes in chemistry. It is shown that the use of the thesaurus approach to the selection of the content and methods of mathematical statistics provides a test with high reliability and validity coefficients. Key words: diagnostic test, chemistry, educational measurement.

scholarly journals Mix Freeze group based Cooperative Learning Approach for Improving the Students Reading Comprehension at the first grade students of SMAN 1 Bontomarannu

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Sujariati Sujariati
Keyword(s):  
Reading Comprehension ◽  
Action Research ◽  
Cooperative Learning ◽  
Diagnostic Test ◽  
First Grade ◽  
Learning Approach ◽  
Research Findings ◽  
The Subject ◽  
The Mean ◽  
Main Ideas

This research aimed to explain the improvement of the students’ reading comprehension in terms of Literal Reading of the text dealing with main ideas and sequence of details and Creative Reading of the text dealing withcharacterization and conclusion. The researcher used a classroom action research (CAR) which was conducted in two cycles in which every cycle consisted of four meetings. The location of this research was taken at the first grade students of SMAN 1 Bontomarannu  with a number of the subject were 35 students. The research findings indicated that the application of SMAN 1 Bontomarannu, This strategy was improving the students’ reading comprehension in terms ofLiteral reading  and Creative reading of the text. It was proved by the mean score of cycle I was 60.7. It was classified as fair then improved to be 73.36. It was classified as good in cycle II. They are higher than the mean score of diagnostic test namely 50.7 that classified as poor. Therefore there was the improvement of the students’ reading comprehension in terms of Literal Reading of the text dealing with main ideas and sequence of details and Creative Reading of the text dealing withcharacterization and conclusion.

scholarly journals IMPROVING THE STUDENTS’ SPEAKING ABILITY THROUGH CASE PRESENTATION METHOD

2015 ◽  
Vol 4 (2) ◽  
pp. 180
Author(s):  
Dzur Rif'ah Mahmudah
Keyword(s):  
High School ◽  
Action Research ◽  
Diagnostic Test ◽  
Case Presentation ◽  
Speaking Test ◽  
Presentation Method ◽  
The Subject ◽  
The Mean ◽  
Classroom Action Research ◽  
English Subject

The research aimed at finding out the improvement of students’ speaking ability through Case Presentation at the eleventh grade of SMA Negeri 1 Libureng Bone. The method of this research was classroom action research that consisted of two cycles. One cycle consisted of four meetings. It means that there were eight meeting in two cycles. This classroom action research was done at SMA Negeri 1 Libureng Bone for English subject. The subject research was 39 students of senior high school in 2012-2013 academic years. Those consist of 26 women and 13 men. Instruments are speaking test and observation sheet. The findings of this research were the improvement of the students’ speaking ability in terms of speaking accuracy and speaking fluency in which the mean score of diagnostic test was 5.30, the mean score of cycle I was 6.27 and the mean score of cycle II was 7.29. The result above indicated that there was significant improvement of the students’ speaking ability in terms of speaking accuracy and speaking fluency in the application of case presentation method at the eleventh grade of SMA Negeri 1 Libureng Bone.

scholarly journals IMPROVING THE STUDENTS READING COMPREHENSION THROUGH MIX FREEZE GROUP STRATEGY

2015 ◽  
Vol 4 (1) ◽  
pp. 118
Author(s):  
Muhammad Astrianto Setiadi
Keyword(s):  
Reading Comprehension ◽  
Action Research ◽  
Diagnostic Test ◽  
Second Grade ◽  
Specific Information ◽  
Second Grade Students ◽  
Research Findings ◽  
The Subject ◽  
The Mean ◽  
Main Ideas

This research aimed to explain the improvement of the students’ reading comprehension in terms of Specific Information of the text dealing with main ideas and sequence of details and Creative Reading of the text dealing with characterization and conclusion. To explain the improvement, the researcher used a classroom action research (CAR) which was conducted in two cycles in which every cycle consisted of four meetings. The location of this research was taken from the second-grade students of SMAN 1 Bontomarannu with a number of the subject were 35 students. The research findings indicated that the application of SMAN 1 Bontomarannu) Strategy was significant in improving the students’ reading comprehension in terms of Specific Information and Creative reading of the text. It was proved by the mean score of the cycle I was 60.69. It was classified as fair then improved to be 73.38. It was classified as good in cycle II. They are higher than the mean score of diagnostic test namely 50.7 that classified as poor. Therefore there was the improvement of the students’ reading comprehension in terms of Specific Information of the text dealing with main ideas and sequence of details and Creative Reading of the text dealing with characterization and conclusion.

“The Whole is More than the Sum of its Parts”: The Effects of Grouping and Randomizing Items on the Reliability and Validity of Questionnaires

1997 ◽  
Vol 13 (2) ◽  
pp. 67-74 ◽  
Author(s):  
Gabriele Helga Franke
Keyword(s):  
University Students ◽  
Group Testing ◽  
Reliability And Validity ◽  
Nursing School ◽  
Self Report ◽  
School Students ◽  
Application Study ◽  
Mean Values ◽  
The Mean ◽  
Item Presentation

This investigation was concerned with the widely spread practice to extract subscales from extensive psychodiagnostic inventories and to present their items in questionnaires as homogeneous item-blocks. By way of examining the effects of the mode of item-presentation on the reliability and validity, the frequently used and validated SCL-90-R was analyzed as a prototype of multidimensional symptom self-report inventories. Two studies were conducted in different contexts of application (study I: controlled group testing, study II: non-controlled individual testing) and involved different groups of subjects (study I: 130 nursing school students, study II: 134 university students). In both studies the standard item-arrangement was contrasted with the item-block presentation, which groups together items measuring the same dimension. The results revealed significant effects of item-blocking on the mean values, on the reliability, and the validity of the questionnaire. The findings seriously call into question the admissibility of subscale-extraction for self-report inventories. We conclude that the Gestalt paradigm, “The whole is more than the sum of its parts,” is valid for multidimensional psychodiagnostic inventories.

scholarly journals IMPROVING STUDENTS’ ACHIEVEMENT IN WRITING REPORT TEXT THROUGH NUMBERED HEADS TOGETHER

2012 ◽  
Vol 1 (1) ◽  
Author(s):  
Yunita Khairani And Zainuddin
Keyword(s):  
Key Words ◽  
Learning Process ◽  
Quantitative Data ◽  
Test Score ◽  
Writing Test ◽  
Class Viii ◽  
The Subject ◽  
The Mean ◽  
Teaching Learning ◽  
Report Text

This study attempted to improve students’ achievement in writing report text through numbered heads together. This study was conducted by using classroom action research. The subject of the research was class VIII/B at SMP SWASTA UPMI Medan that consisted of 32 students. The research was conducted in two cycles and the first cycle consisted of four meetings and the second cycle consisted of two meetings. The instrument for collecting quantitative data was a writing test and the instrument for collecting quantitative data included diary notes, observation sheets, interview and questionnaire sheets. Based on the writing test score, students’ score kept improving in every test. In test I, the mean was 66,4375, in test II the mean was 78,125 and in test III the mean was 87,5625. Based on the observation sheets and questionnaire sheets, it was found that the teaching learning process ran well. Students were active and interested in writing. The result of the research showed that Number Heads Together (NHT) significantly improved students’ achievement in writing report text. Key Words: Writing, Report, Number Heads Together.

scholarly journals IMPROVING THE STUDENTS’ ABILITY IN TRANSLATING ENGLISH INTO INDONESIAN BASED ON DUFF’S PRINCIPLES

2013 ◽  
Vol 2 (2) ◽  
pp. 201
Author(s):  
Radiah Hamid ◽  
Rati Pujiantri
Keyword(s):  
High School ◽  
Action Research ◽  
Diagnostic Test ◽  
Junior High School ◽  
Junior High ◽  
Original Text ◽  
Research Findings ◽  
The Subject ◽  
The Mean ◽  
Second Year

This research aimed at finding out the improvement of the students’  ability in translating English into Indonesian especially for Recount text in terms of the meaning and style of the original text. The researcher used a Classroom Action Research (CAR) to explain the improvement, which was conducted in two cycles in which every cycle consisted of four meetings. The location of this research was taken in the second year of Junior High School 2 Sungguminasa with the number of the subject i.e. 36 students. The research findings indicate that the application of Duff’s Principles is significant in improving the students’ translating ability in terms of meaning and style of the original text. It is proved by the mean score of the cycle I is 60.27 then improved to be 72.49 in cycle II. They are higher than the mean score of diagnostic test namely 56.45. It means that there is the improvement of the students’ translating ability in terms of meaning and style of the original text.Keyword: Ability, translating, English, Indonesian, Duff, principle

scholarly journals IMPROVING STUDENTS’ ACHIEVEMENT IN WRITING DESCRIPTIVE TEXT THROUGH THINK PAIR SHARE

2012 ◽  
Vol 1 (1) ◽  
Author(s):  
Adly Syahputra And Elia Masa Ginting
Keyword(s):  
High School ◽  
Action Research ◽  
Key Words ◽  
Junior High School ◽  
Learning Process ◽  
Teaching And Learning ◽  
Junior High ◽  
Qualitative And Quantitative ◽  
The Subject ◽  
The Mean

Students’ achievement in writing descriptive text is very low, in this study Think Pair Share (TPS) was applied to solve the problem. Action research in conducted for the result and the technique to collect the data, qualitative and quantitative are applied in this research. The subject of this research is grade VIII in Junior High School (SMP Bilang Huluh) Rantau Parapat. In the first evaluation (66,4375) increased to the mean of second evaluation (78,125) and the mean of third evaluation (87,5625). Observation result showed that the students gave their good attitudes and responses during teaching and learning process by applying the application of TPS (Think Pair Share) method. Questionnaire and interview report showed that students agree that the application of TPS (Think Pair Share) method had helped them in writing descriptive text. It can be conclude that the students’ achievement is improved when thay are tought through TPS Method. Key Words: Achievement, Writing, Descriptive Text and Think Pair Share

IMPROVING THE STUDENTS’ ACHIEVEMENT IN WRITING PROCEDURE TEXT THROUGH NUMBERED HEADS TOGETHER TECHNIQUE

2012 ◽  
Vol 1 (1) ◽  
Author(s):  
Evi Ramini ◽  
Elia Masa Gintings
Keyword(s):  
Key Words ◽  
Learning Process ◽  
Quantitative Data ◽  
Test Score ◽  
Qualitative Data ◽  
Writing Test ◽  
Procedure Text ◽  
The Subject ◽  
The Mean ◽  
Teaching Learning

ABSTRACT This study attempts to improve students’ achievement in writing procedure text through Numbered Heads Together Technique. This study was conducted by using classroom action research. The subject of the research was class IX/A SMP SWASTA UPMI MEDAN that consisted of 30 students. The research was conducted in two cycles and the first cycle consisted of four meetings and the second cycle consisted of two meetings. The instruments of collecting data were quantitative data (Writing Test) and Qualitative data (diary notes, observation sheet, interview and questionnaire sheet). Based on the writing test score, students’ score kept improving in every test. In the test I the mean was 67,6, in the test II the mean was 74.5 and the test III the mean was 86.56. Based on observation sheet and questionnaire sheet, it was found that teaching learning process ran well. Students were active and interest in writing. The result of the research showed that NHT can improve students’ achievement in writing procedure text. Key Words: Writing, Procedure Text, Number Heads Together

IMPROVING THE STUDENTS’ ACHIEVEMENT ON WRITING DESCRIPTIVE PARAGRAPHS THROUGH THE APPLICATION OF TEAM PAIR SOLO

2012 ◽  
Vol 1 (1) ◽  
Author(s):  
Dedi Sanjaya ◽  
Sumarsih Sumarsih
Keyword(s):  
Action Research ◽  
Key Words ◽  
Learning Process ◽  
Quantitative Data ◽  
Test Score ◽  
Qualitative Data ◽  
Writing Test ◽  
The Subject ◽  
The Mean ◽  
Teaching Learning

Abstract This study attempts to improve students’ achievement in writing descriptive paragraphs through the application of Team Pair Solo. This study was conducted by using classroom action research. The subject of the research was class X/A SMA Nurul Ilmi Padangsidempuan that consisted of 32 students. The research was conducted in two cycles and the first cycle consisted of four meetings and the second cycle consisted of two meetings. The instruments of collecting data were quantitative data (Writing Test) and Qualitative data (observation sheet, interview and questionnaire sheet). Based on the writing test score, students’ score kept improving in every test. In the test I the mean was 66,4375, in the test II the mean was 78,125 and the test III the mean was 87,5625. Based on observation sheet and questionnaire sheet, it was found that teaching learning process ran well. Students were active and interest in writing. The result of the research showed that TPS can improve students’ achievement in writing descriptive paragraph. Key Words: Achievement, Descriptive, Paragraph, Team Pair Solo

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