Mastering Research Methods – Creative Ways to Teach Levels of Data Hosted by Joseph & Jim

Webinars Coming Soon Webinar Recordings/Resources webinar-recordings Wednesday 19 th 4:30  How To Choose The Right Statistical Test. Sunday 23 rd 7:30  Law & Order In The Classroom – Great Ways To Teach Forensic Psychology Sunday 23 rd 8:30  What You Really Need To Know About Holistic Marking For AQA A-level Psychology.

Session Overview Why levels of measurement are important. How levels of measurement could be examined. 1.The Importance of Levels of Measurement Practical ideas / strategies for teaching levels of measurement. 1.Fun Ways to Teach Levels of Measurement

The Importance of Levels of Measurement Part 1  Why levels of measurement are important.  How levels of measurement could be examined. The Importance of Levels of Measurement

Why Levels Of Measurement Are Important The Specification:  Levels of measurement: nominal, ordinal and interval. Students are NOT required to make the distinction between interval and ratio data, and the distinction is often a confusing one! Ratio

Why Levels Of Measurement Are Important While levels of measurement do not appear in the new Sample Assessment Materials (SAMs) as a stand alone question – they are essential to answer any question on inferential tests – which appear in ALL three A-Level SAMs.  Paper 2 – Set 1 – Question 20 [4 marks]  Paper 2 – Set 2 – Question 14 [3 marks]  Paper 2 – Set 3 – Question 20 & 26 [3 marks & 12 marks]

The Decision Tree Classroom-Poster-Selecting-Statistical-Test.html

Paper 2 – SAM Set 1 Q20. Name an appropriate statistical test that could be used to analyse the number of verbal errors in Table 1. Explain why the test you have chosen would be a suitable test in this case. [4 marks]

Paper 2 – SAM Set 1 – Answer  1 mark for stating ‘unrelated t- test’ or Mann-Whitney  Interval data – as verbal errors are equal in size. (1)  Independent groups design. (1)  Test of difference. (1)

Paper 2 – SAM Set 2 Q14. The researchers decided to analyse the data using a Spearman’s rho test. Explain why this is a suitable choice of test for this investigation. (3 marks)

Paper 2 – SAM Set 2 – Answer Spearman’s rho because:  The data is correlational. (1)  Related pairs of data are used. (1)  The variables under examination are both measured at an ordinal level. (1)

Paper 2 – SAM Set 3 Q20. The students carried out a Chi-square test. Explain why the Chi- square test was an appropriate test to use in this case. (3 marks)

Paper 2 – SAM Set 3 – Answers Chi-square because:  The data is nominal. (1)  The design is independent – as the observation cannot appear in more than one cell. (1)  The students are looking for an association between two variables. (1)

Paper 2 – SAM Set 3 – Extended Response

Inferential statistics:  Test of difference  Data is ordinal level  Mann Whitney or Wilcoxon (depending on design chosen)

Optional Topics Inferential statistics questions also appear in the optional topics. SAM Set 3:  Gender Question 10.3 (4 marks)  Cognition Question 14.3 (4 marks)  Relationships Question 6.3 (4 marks)

The Importance of Levels of Measurement Part 1  Why levels of measurement are important.  How levels of measurement could be examined. The Importance of Levels of Measurement Any Questions?

Fun Ways to Teach Levels of Measurement Part 2  Practical teaching ideas/strategies for teaching levels of measurement. Fun Ways to Teach Levels of Measurement

Activity 1: Measuring Levels of Measurement The aim of this lesson is to provide teachers with a fun and interactive way of teaching levels of measurement. You will need:  Tape measure  Students  White board You don’t need a PowerPoint, although one is provided.

Activity 1: Measuring Levels of Measurement Part 1: Nominal Ask the students to form 2 groups – tall people (on the left of the room), short people (on the right of the room). No. of students Tall Short 10 6 Nominal

Activity 1: Measuring Levels of Measurement Part 2: Ordinal Select 10 students at random and ask them to form a line from tallest to shortest. RankName Ordinal Michelle Joseph Jim Geoff Graham David Goliath Zeus Dumbledore Hagrid

Activity 1: Measuring Levels of Measurement Name Height (CM) Interval Michelle Joseph Jim Geoff Graham David Goliath Zeus Dumbledore Hagrid Part 3: Interval Ask the same 10 students to measure their height in CM and plot these on the whiteboard. Shoe

Activity 2: I Know My Data The purpose of this activity is to consolidate knowledge for the different levels of measurement.

Activity 2: I Know My Data

Activity 3: Levels of Measurement in Dogs The aim of this activity is to check that students understand nominal, ordinal or interval levels of measurement. You will need:  Pictures of dogs

Activity 3: Levels of Measurement in Dogs The students are required to come up with as many different levels of measurement as possible for:  Nominal  Ordinal  Interview Each unique answer gets a point.

Activity 3: Levels of Measurement in Dogs  Nominal = working dogs vs. pets; long hair vs. short hair; big ears vs. small ears.  Ordinal = ranked order of cuteness; order they would come in a race.  Interval = height in cm; weight in kg; quantity of food (in grams) eaten, etc.

Fun Ways to Teach Levels of Measurement Part 2  Practical teaching ideas/strategies for teaching levels of measurement. Fun Ways to Teach Levels of Measurement

Today’s Resources  Posted in our Facebook Groups.  Uploaded to our ‘CPD Webinar Recordings’ page for 8pm this evening.  ogy/series/cpd-webinar- recordings ogy/series/cpd-webinar- recordings

Strong Foundations – Student Workshop  22 nd November Portsmouth  23 rd November London (Fulham)  24 th November London (Stratford)  25 th November Cambridge  28 th November Bristol  29 th November Birmingham  30 th November Manchester  1 st December Leeds  2 nd December Gateshead

Strong Foundations – Student Workshop To book:  Visit 

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