Research Methods by Madeline Wood https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l Write something that you learnt from last week about research methods en-us 2021-06-07 02:37:21 UTC 2025-07-29 05:38:47 UTC hello@padlet.com stratified sampling is a sampling method where the researcher identifies different types of people in a population and categorises them into homogeneous groups called strata, and a sample is selected from each. The advantages of this are that the results are able to be generalised because of the equal variety of people. The disadvantages of stratified sampling are that it taking more effort to carry out, as it is time consuming to find participants, organise them into groups and can cost a lot. This method is more complex than the other sampling methods, such as random sampling or convenient sampling. https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416094  ]]> 2021-06-08 00:40:13 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416094 repeated measures https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416197 what is it?
Repeated measures design refers to a research design that consists of multiple measurements of the same variable being taken on the same subjects over several time periods.
Strengths and limitations:
a strength is that it uses the same subjects to be involved with multiple experiments
a limitation is order effects since they subjects have done it multiple times]]> 2021-06-08 00:40:16 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416197 Hypothesis https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416224 Needs to start with "it was hypothesised..."

Needs to include independent and dependant variables 

Needs to predict the direction of results (e.g. increase, decrease)

Needs to outline the population 

A research hypothesis is a more generalised prediction (e.g. It was hypothesised that taller people will have bigger shoe sizes)

Operational hypothesis means that the variable is stated in terms that show how it is measured (e.g. studying for one hour a day for seven days will improve your test score by 40%).]]> 2021-06-08 00:40:16 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416224 convenience sampling https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416571 what is it?
convenience sampling is a type of non probability sampling that involves  the sample being drawn from that part of the population that is close to hand
advantages/strengths 
it is cheap, efficient, and convenient
useful intervention top correct dissatisfaction
saves time when gathering data
the research process is easier with convenience sampling 

weakness: 
convenience samples do not produce representative results. the results of convenience samples are hard to replicate. the bias of the sample can not be measured.   
easy to provide false data 
some researchers do not understand the specificity of convenience sampling ]]> 2021-06-08 00:40:25 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416571 Independent and dependent variable https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416615 The independent variable (IV): the variable deliberately manipulated or varied in some way by the experimenter. 

The dependent variable (DV): is the variable being tested and measured in an experiment and is dependent on the IV. ]]> 2021-06-08 00:40:26 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416615 Sample https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416791 Sample is a specific number of participants drawn from the population e.g. 30 year 10 students at Braemar. ]]> 2021-06-08 00:40:31 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416791 random sampling https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416847 random sampling is an unbiased approach to gathering responses from a large group. This means that each individual in a population has an equal chance of being selected. However, random sampling can be time consuming and expensive. ]]> 2021-06-08 00:40:33 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416847 Population. https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416964 Population is is a whole group of participants form which a sample is drawn, Eg. Year 10 students at Braemar. ]]> 2021-06-08 00:40:35 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591416964 matched participants https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591417568 this involves categorising participants in pairs before testing them. the pairs are made with people who are as similar as possible. 
when the pair is split for testing, one person is in the experimental group and the other is in the control group. 
strength: there are no order effects and the method is better at controlling participant differences as opposed to independent groups
limitation: there could be other variables not accounted for/ not tested.

]]> 2021-06-08 00:40:52 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591417568 extraneous variable https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591417780 An extraneous variable is a variable other than the independent variable that can affect the results of the experiment (DV). They are aimed to be removed from the experiment. ]]> 2021-06-08 00:40:57 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591417780 Independent groups https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591419222 what is it ? 
experimental design refers to how many people from the sample are allocated to different groups within the an experiment. 

strengths + limitations ]]> 2021-06-08 00:41:32 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591419222 confounding variable https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591422841 A confounding variable is a variable that has already had an effect on the experiment, and may affect the results. ]]> 2021-06-08 00:43:10 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591422841 Quantitative vs Qualitative data https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591427270
Quantitative data is anything that can be counted or measured and is numerical data.
Qualitative data is not numerical data and is descriptive and expressed in language.]]> 2021-06-08 00:45:04 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591427270 https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591453169 2021-06-08 00:56:25 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591453169 https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591453342 2021-06-08 00:56:29 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591453342 https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591453583 2021-06-08 00:56:36 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591453583 https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591454562 2021-06-08 00:56:58 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591454562 https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591459998 2021-06-08 00:59:16 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591459998 S: https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591495134 2021-06-08 01:15:41 UTC https://padlet.com/madelinewood1/wbt8hlo6i8kxdw3l/wish/1591495134