Figure 1 shows the different apparatus the two students used.(a)     Choose two advantages of using student A’s apparatus.*2 pointsStudent A’s apparatus made sure the test was fair.Student B’s apparatus only measured categorical variables.Student A’s measurements had a higher resolution.Student B was more likely to misread the temperature.

1.Two students performed the same experiment separately and each one of them recorded two readings of mass which are given below. Correct reading of mass is 3.0 g. On the basis of given data, mark the correct option out of the following statements. Student Readings (i)  A 3.01 2.99 (ii)B 3.05 2.951 point(i) Results of both the students are neither accurate nor precise.(ii) Results of student A are both precise and accurate.(iii) Results of student B are neither precise nor accurate.(iv) Results of student B are both precise and accurate.

Question 1Which two types of learning can be measured by assessments?1 pointUnderstandingKnowledgeMemoryLearning

A student carries out an experiment to determine the volume of 2 M sodium hydroxide needed to neutralise a known volume of 2 M hydrochloric acid.As different volumes of sodium hydroxide are added, the student uses a thermometer to measure the initial and final temperature. The change in temperature is then calculated.Which of the following options correctly identifies the variables in this investigation?I DON'T KNOWSUBMIT ANSWER

Which one of the following best explains why there was a difference between the food test result and the food packaging?The test was only for non-reducing sugars, they need to test for the presence of the other types of sugars. This could explain why there was a difference between the food label and the food test results.The student did not add enough Benedict's reagent therefore a positive result might have been missed.The test was only for reducing sugars (e.g. glucose) and does not detect the presence other types of sugars, namely non-reducing sugars. This could explain why there was a difference between the food label and the food test results.There was not enough of the sample when adding Benedict’s reagent.I DON'T KNOWSUBMIT ANSWER

In his second item analysis, Teacher Vince found out that more from the upper group got the test item #12 correctly. This means that the test item __________.*1 pointa. has a negative discriminating power.b. has a lower validityc. has a positive discriminating powerd. has a high reliability