Provide feedback on item level

[Miao Qian]

Hi, I am piloting a child-friendly Age implicit task  which asks children to group Good and Young, Bad and Old together. I gave feedback on ACC and RT for each block (see “//Report accuracy to the participant”). I wonder how to give item-level feedback, such as ACC and RT when Ps respond to of1(image of old female face #1)? Thank you!

 

Miao Qian

[Elad Zlotnick]

Hi,

Do you mean to display statistics fore each stimulus separately at the end of the block, or simply after each trial?

best,

Elad

[Elad Zlotnick]

Hi Miao,

Please respond to questions within the group so that others can benefit from the discussion.

In order to accomplish your request, you need some JavaScript programming.

All the data regarding user responses can be found in current.logs (It's an array of logs).

Within these logs you can find the image name (log.media[0]), the latency of response (log.latency), and score (log.data.score).

Using these you can compute error rates and response times for each image.

In your place, I'd create a helper function to do this, and add it to current, so that I could use it within the debriefing.

Best,

Elad

[Miao Qian]

Thank you Elad. This is super helpful. 

[Miao Qian]

Hi Elad, I was thinking to create a map to store all the key value pairs. Does it support something like "var datamap = new Map()"? Can I use it in Minno? 

Thanks

Miao

[Elad Zlotnick]

"Map" is a Javascript feature that you can use if you want within Minno.

I'd advise against using it because it is not well supported by all browsers  (see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Browser_compatibility)

You can use a plain Javascript object instead

var datamap = {};

datamap.a1 = 'a1 item';

datamap.a2 = 'a2 item';

and so on.

[Miao Qian]

Thank you. This is super helpful.