Mastering Research Methods – How to Choose the Right Statistical Test and Using the ‘Decision Tree’ Hosted by Joseph & Jim

Webinar Recordings/Resources Webinars Forensic - Sunday 23rd October @ 7:30 Holistic Marking – Sunday 23rd October @ 8:30 Stress – Tuesday 25th October @ 8:30 Gender – Thursday 27th October @ 8:30 Webinar Recordings/Resources www.tutor2u.net/psychology/series/cpd-webinar-recordings

Session Overview Types of Exam Questions: Selecting & Justifying an Appropriate Test Justifying and Pre-determined Test Inferential Statistics in the Optional Units The Importance of Inferential Statistical Tests Practical ideas / strategies for teaching inferential statistical tests Practical Ways To Use The Decision Tree Levels of measurement: nominal, ordinal and interval.

Session Overview Practical Ways To Use The Decision Tree Practical ideas / strategies for teaching inferential statistical tests Types of Exam Questions: Research Methods Extended Response Questions (RM) Optional Units The Importance of Inferential Statistical Tests

The Decision Tree http://www.tutor2u.net/acatalog/Psychology-Classroom-Poster-Selecting-Statistical-Test.html Black & White Version available to download for your student folders.

Activity 1: Sorting the Decision Tree Activity 1: Sorting the Decision Tree. The purpose of this activity is to help your students remember the layout and structure of the Decision Tree.

Activity 1: Sorting the Decision Tree

Activity 2: 3D Decision Activity 2: 3D Decision The aim of this resource is to help students select and justify their choice of inferential statistical tests.

Activity 2: 3D Decision Activity 2: 3D Decision Students need to select and justify the appropriate test for 6 scenarios, using the 3D method: Difference? (Test of difference or correlation) Design? (Independent groups or repeated measures/matched pairs) Data? (Nominal, Ordinal, Internal)

Independent measures design Interval level data Unrelated t-test Test of difference Independent measures design Interval level data Poll: Which statistical test would you select? Pearson’s r Unrelated t-test Related t-test Wilcoxon Difference? Design Data?

Activity 3: Choosing the Right Test – Temple Run The aim of this activity is to develop knowledge and understanding of inferential tests, by introducing an element of competition…

Activity 3: Choosing the Right Test – Temple Run There are 8 different question cards and you’ll need one set of card per group. Groups of 3 or 4 work perfectly for this activity. Each group is give Q1 face down…

Activity 3: Choosing the Right Test – Temple Run In groups, they write their answer on the back of the card, plus a justification. The ‘runner’ brings the card to the front and if correct they are given question 2…and the process repeats itself. Mann-Whitney: Test of difference Independent groups design Ordinal level data

10 Application Handouts We have also provided 10 Statistical Test Application Handouts that would make perfect starters, plenaries, homework activities, etc.

Session Overview Any Questions? Practical Ways To Use The Decision Tree Practical ideas / strategies for teaching inferential statistical tests Any Questions?

Session Overview Types of Exam Questions: Selecting & Justifying an Appropriate Test Justifying and Pre-determined Test Inferential Statistics in the Optional Units The Importance of Inferential Statistical Tests Levels of measurement: nominal, ordinal and interval.

Why Levels Of Measurement Are Important Inferential Statistical Tests appear in ALL three Paper 2 Sample Assessment Materials (SAMs) Paper 2 – Set 1 – Question 20 [4 marks] – Select & Justify Paper 2 – Set 2 – Question 14 [3 marks] – Justify a predetermined test Paper 2 – Set 3 – Question 20 & 26 [3 marks & 12 marks]

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]

Independent measures design Interval level data 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] Unrelated t-test Test of difference Independent measures design Interval level data Poll: Which statistical test would you select? Pearson’s r Unrelated t-test Related t-test Wilcoxon Difference? Design Data?

Independent measures design Ordinal level data 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] Mann-Whitney Test of difference Independent measures design Ordinal level data Poll: Which statistical test would you select? Pearson’s r Unrelated t-test Related t-test Wilcoxon Difference? Design Data?

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)

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) Spearman’s rho Correlational Data was ordinal Difference

Paper 2 – SAM Set 3 – Extended Response

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)

Session Overview Types of Exam Questions: Selecting & Justifying an Appropriate Test Justifying and Pre-determined Test Inferential Statistics in the Optional Units The Importance of Inferential Statistical Tests Levels of measurement: nominal, ordinal and interval.

Today’s Resources Posted in our Facebook Groups. Uploaded to our ‘CPD Webinar Recordings’ page for 8 pm this evening. www.tutor2u.net/psychology/series/cpd-webinar-recordings

Strong Foundations – Student Workshop 22nd November Portsmouth 23rd November London (Fulham) 24th November London (Stratford) 25th November Cambridge 28th November Bristol 29th November Birmingham 30th November Manchester 1st December Leeds 2nd December Gateshead Some of the venues have only 1/3 of tickets available… 1) Research Methods LIVE! 2) Explore Inferential Statistics 3) Using your Year 1 stuff to NAIL issues and debates LUNCH 4) Let’s get ready for Year 2 Biopsychology 5) Raising your game in Year 2

Strong Foundations – Student Workshop To book: Visit www.tutor2u.net/events Email events@tutor2u.net

Don’t forget to sign up for our future webinars: www. tutor2u Don’t forget to sign up for our future webinars: www.tutor2u.net/psychology/events Please follow us on Twitter @tutor2upsych and spread the word… Join our Teacher FB Community, search: ‘AQA A Level Psychology Teachers’ Encourage your students to join our Student FB Community: ‘A Level Psychology Student Group’. If you ever need any advice, support or guidance, email: joseph@tutor2u.net Any Questions? http://www.tutor2u.net/psychology/reference/cpd-webinar-practical-ways-to-help-make-your-psychology-department-outstanding

Webinar Recordings/Resources Webinars Coming Soon Forensic - Sunday 23rd October @ 7:30 Holistic Marking – Sunday 23rd October @ 8:30 Stress – Tuesday 25th October @ 8:30 Gender – Thursday 27th October @ 8:30 Webinar Recordings/Resources www.tutor2u.net/psychology/series/cpd-webinar-recordings