Survey writing best practices

My team at work is seeking a standard format for all survey questions meant to assess sentiment towards feature X (e.g., satisfaction, challenge level, enjoyability, navigability, etc.).
Imagining each is Likert scaled from …
What do you expect after a subscribing to a newsletter?

after user is subscribing to newsletter and so click the “register button” i can show a message where i alert the user that i have send an message to email… But i don’t know how show this message:
1) overlay ? inside it i …
Do I need arrows to indicate hover menus in main navigation?

The main navigation of a website I’m working on uses hover menus and every main navigation item has children that reveal on hover/tap.
Do I need to include a down arrow (chevron) that indicates to users that content will rev…
Two similar values in two pickers with no labels

I have two date fields next to each other on a form in my app.
I am not using labels for any of the fields. Rather I have put a help text inside each of them. When the user taps on a field, native keyboard opens and once he…
How to distinguish between fields with similar values and no labels?

I have two date fields next to each other on a form in my app.
I am not using labels for any of the fields. Rather I have put a help text inside each of them. When the user taps on a field, native keyboard opens and once he…
Enabling desired date format for users

I don’t want to force users to use only mm/dd/yyyy format on my website.
My case:
User will be able to choose which date format he prefers on the website ( calendars, tables and so on):
12.30.2016
12/30/2016
Dec 30 2016
30 …
On a tablet, is it okay for both modal-style windows and full-screen programs to close with different methods?

Imagine you are faced with a tablet-sized screen that is almost-but-not-quite a tablet.
It has a physical keyboard, and there is no on-screen keyboard.
It has a touch screen, but also has a port where you can attach a mous…
Ordering of an Eligibility Funnel during application onboarding process

I am designing an onboarding/registration process for a mobile app/service that has fairly restrictive qualification requirements.
Over time, these requirements will be come substantially less restrictive, but our MVP will o…
Tab based layout or not?

The app I’m designing initially had a tab based layout in its early stage (Android version). Since working on the iPhone version I’ve gone with just using ViewControllers to allow the user to navigate through. In some ways it feels more fluid but it may be confusing to the user.
The app analyses and visualises incoming audio according to different parameter sets (these are the data items). There are two views, the audio analyses view and the data / edit view. There is also a view that lists the different data items, that will allow for online database search and discovery.
The tab based layout had something like:
Visualise | Edit | Search | Settings
The view controller layout has a path like:
Search (click on item) -> Visualise -> Edit
The Visualise view has a right nav button to edit.
I’m more of a programmer than UX designer so wondering if any UX people have some tips on how to make such decisions.